Svensmark: "global warming stopped and a cooling is beginning" – "enjoy global warming while it lasts"

UPDATED: This opinion piece from Professor Henrik Svensmark was published September 9th in the Danish newspaper Jyllands-Posten. Originally the translation was from Google translation with some post translation cleanup of jumbled words or phrases by myself. Now as of Sept 12, the translation is by Nigel Calder.  Hat tip to Carsten Arnholm of Norway for bringing this to my attention and especially for translation facilitation by Ágúst H Bjarnason – Anthony

Catainia photosphere image August 31st, 2009 - click for larger image
Spotless Cueball: Catania observatory photosphere image August 31st, 2009 - click for larger image

While the sun sleeps

Translation approved by Henrik Svensmark

While the Sun sleeps

Henrik Svensmark, Professor, Technical University of Denmark, Copenhagen

“In fact global warming has stopped and a cooling is beginning. No climate model has predicted a cooling of the Earth – quite the contrary. And this means that the projections of future climate are unreliable,” writes Henrik Svensmark.

The star that keeps us alive has, over the last few years, been almost free of sunspots, which are the usual signs of the Sun’s magnetic activity. Last week [4 September 2009] the scientific team behind the satellite SOHO (Solar and Heliospheric Observatory) reported, “It is likely that the current year’s number of blank days will be the longest in about 100 years.” Everything indicates that the Sun is going into some kind of hibernation, and the obvious question is what significance that has for us on Earth.

If you ask the Intergovernmental Panel on Climate Change (IPCC) which represents the current consensus on climate change, the answer is a reassuring “nothing”. But history and recent research suggest that is probably completely wrong. Why? Let’s take a closer look.

Solar activity has always varied. Around the year 1000, we had a period of very high solar activity, which coincided with the Medieval Warm Period. It was a time when frosts in May were almost unknown – a matter of great importance for a good harvest. Vikings settled in Greenland and explored the coast of North America. On the whole it was a good time. For example, China’s population doubled in this period.

But after about 1300 solar activity declined and the world began to get colder. It was the beginning of the episode we now call the Little Ice Age. In this cold time, all the Viking settlements in Greenland disappeared. Sweden surprised Denmark by marching across the ice, and in London the Thames froze repeatedly. But more serious were the long periods of crop failures, which resulted in poorly nourished populations, reduced in Europe by about 30 per cent because of disease and hunger.

"The March across the Belts was a campaign between January 30 and February 8, 1658 during the Northern Wars where Swedish king Karl X Gustav led the Swedish army from Jutland across the ice of the Little Belt and the Great Belt to reach Zealand (Danish: Sjælland). The risky but vastly successful crossing was a crushing blow to Denmark, and led to the Treaty of Roskilde later that year...." - Click for larger image.

It’s important to realise that the Little Ice Age was a global event. It ended in the late 19th Century and was followed by increasing solar activity. Over the past 50 years solar activity has been at its highest since the medieval warmth of 1000 years ago. But now it appears that the Sun has changed again, and is returning towards what solar scientists call a “grand minimum” such as we saw in the Little Ice Age.

The match between solar activity and climate through the ages is sometimes explained away as coincidence. Yet it turns out that, almost no matter when you look and not just in the last 1000 years, there is a link. Solar activity has repeatedly fluctuated between high and low during the past 10,000 years. In fact the Sun spent about 17 per cent of those 10,000 years in a sleeping mode, with a cooling Earth the result.

You may wonder why the international climate panel IPCC does not believe that the Sun’s changing activity affects the climate. The reason is that it considers only changes in solar radiation. That would be the simplest way for the Sun to change the climate – a bit like turning up and down the brightness of a light bulb.

Satellite measurements have shown that the variations of solar radiation are too small to explain climate change. But the panel has closed its eyes to another, much more powerful way for the Sun to affect Earth’s climate. In 1996 we discovered a surprising influence of the Sun – its impact on Earth’s cloud cover. High-energy accelerated particles coming from exploded stars, the cosmic rays, help to form clouds.

When the Sun is active, its magnetic field is better at shielding us against the cosmic rays coming from outer space, before they reach our planet. By regulating the Earth’s cloud cover, the Sun can turn the temperature up and down. High solar activity means fewer clouds and and a warmer world. Low solar activity and poorer shielding against cosmic rays result in increased cloud cover and hence a cooling. As the Sun’s magnetism doubled in strength during the 20th century, this natural mechanism may be responsible for a large part of global warming seen then.

That also explains why most climate scientists try to ignore this possibility. It does not favour their idea that the 20th century temperature rise was mainly due to human emissions of CO2. If the Sun provoked a significant part of warming in the 20th Century, then the contribution by CO2 must necessarily be smaller.

Ever since we put forward our theory in 1996, it has been subjected to very sharp criticism, which is normal in science.

First it was said that a link between clouds and solar activity could not be correct, because no physical mechanism was known. But in 2006, after many years of work, we completed experiments at DTU Space that demonstrated the existence of a physical mechanism. The cosmic rays help to form aerosols, which are the seeds for cloud formation.

Then came the criticism that the mechanism we found in the laboratory could not work in the real atmosphere, and therefore had no practical significance. We have just rejected that criticism emphatically.

It turns out that the Sun itself performs what might be called natural experiments. Giant solar eruptions can cause the cosmic ray intensity on earth to dive suddenly over a few days. In the days following an eruption, cloud cover can fall by about 4 per cent. And the amount of liquid water in cloud droplets is reduced by almost 7 per cent. Here is a very large effect – indeed so great that in popular terms the Earth’s clouds originate in space.

So we have watched the Sun’s magnetic activity with increasing concern, since it began to wane in the mid-1990s.

That the Sun might now fall asleep in a deep minimum was suggested by solar scientists at a meeting in Kiruna in Sweden two years ago. So when Nigel Calder and I updated our book The Chilling Stars, we wrote a little provocatively that “we are advising our friends to enjoy global warming while it lasts.”

In fact global warming has stopped and a cooling is beginning. Mojib Latif from the University of Kiel argued at the recent UN World Climate Conference in Geneva that the cooling may continue through the next 10 to 20 years. His explanation was a natural change in the North Atlantic circulation, not in solar activity. But no matter how you interpret them, natural variations in climate are making a comeback.

The outcome may be that the Sun itself will demonstrate its importance for climate and so challenge the theories of global warming. No climate model has predicted a cooling of the Earth – quite the contrary. And this means that the projections of future climate are unreliable. A forecast saying it may be either warmer or colder for 50 years is not very useful, and science is not yet able to predict solar activity.

So in many ways we stand at a crossroads. The near future will be extremely interesting. I think it is important to accept that Nature pays no heed to what we humans think about it. Will the greenhouse theory survive a significant cooling of the Earth? Not in its current dominant form. Unfortunately, tomorrow’s climate challenges will be quite different from the greenhouse theory’s predictions. Perhaps it will become fashionable again to investigate the Sun’s impact on our climate.

Professor Henrik Svensmark is director of the Center for Sun-Climate Research at DTU Space. His book The Chilling Stars has also been published in Danish as Klima og Kosmos Gads Forlag, DK ISBN 9788712043508)


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Graeme Rodaughan
September 10, 2009 11:47 pm

Refreshing. Now if only the Politicians were paying attention…

Stephen Wilde
September 10, 2009 11:48 pm

The main shifts in global air temperature trend seem to occur at approximately 25 to 30 years intervals when the oceans change phase. Even on shorter ENSO type interannual time scales we see a rapid and direct response in the air to ocean SST changes.
There is really not much correlation between observed climate changes and the progression of a single solar cycle which is surprising if the cosmic ray effect is at all significant.
There really doesn’t seem to be a shortage of particulates in the air in the first place.
I have difficulty with the Svensmark theory for those reasons but I am supportive of the idea generally. I just think that it is simply one of many modulating factors and not a primary driver.
I am open to persuasion on this issue and look forward to hearing the comments of others.

September 11, 2009 12:16 am

I have always believed we need a climate change plan A and a plan B, but all our focus has been in creating only the former. I do subscribe to the notion that the suns activity is the main driver of climate changes, either directly (surface temperatures) or indirectly (through warming of oceans etc)
I don’t know how previous solar activity (say in the MWP) is reliably calculated. If anyone can point me to a paper describing this, preferably with an accompanying graph that links the year/decade to the increased/decreased activity I would be greatful.
It would be interesting to overlay this activity over the rise and collapse of civilisations, and other less traumatic but still important events such as periods of relative feast or famine. I am sure this has been done, so again a link would be useful. I seem to remember Lamb did some work on this but I can’t remember in which of his many publications. The IPcc’s references are rather vague in this respect.
tonyb

oakgeo
September 11, 2009 12:24 am

Please get it professionally translated. I think I just had a freshman flashback.

REPLY:
If somebody has a source (and funds) to do this I welcome any better translations than Google. For now this will have to do. – A

tallbloke
September 11, 2009 12:26 am

“This means that projections of future climate is unpredictable. A forecast [that] says it may be warmer or colder for 50 years, is not very useful, for science is not able to predict solar activity.”
‘Astrological Numerologists’ will have to try to help science out then. 🙂
“But no matter how it is interpreted, the natural variations in climate then penetrates more and more.”
Go Henrik!

tokyoboy
September 11, 2009 12:28 am

In Japan the Democratic Party won a landslide victory at the general election on 30 August, and the to-be-prime-minister Yukio Hatoyama announced at a recent press conference that he wanted to aim at 25% curbing of CO2 emission by 2020 with respect to the level in 1990. This is quite embarassing to me, but I do now hope he just “wanted to aim” and not “promised to aim”, “by 2020” ant not during his prime ministership, and “if all the major emitting nations agree” (his words) which appears to be improbable for the moment……….

Johnny Honda
September 11, 2009 12:34 am

I know that the sun hours per day are measured since a long time. They have this glass balls (like the fortune teller…) and behind there is a stripe of paper. When the sun shines, the light burns a hole into the stripe of paper. I saw it in the 70ies the first time but it might exists already a long time ago.
It would be interesting to see a graph with the daily sunshine hour together with the activity of the sun.

Flanagan
September 11, 2009 12:36 am

A very mysterious mechanism indeed. And still not supported by any observation. Moreover, how is it the sun is “fading” since the 90ies and all we got is a warming? Even 20 years later? 2009 is not going to be a cold year, far from that. August and July were globally pretty hot and September seems to be setting a new record
http://discover.itsc.uah.edu/amsutemps/amsutemps.html
check Channel 5
REPLY: “And still not supported by any observation.”
Baloney “Flanagan”.
Svensmark cites Forbush decrease events in the op-ed piece and the results. Here’s an essay on it:
http://wattsupwiththat.com/2009/08/04/a-link-between-the-sun-cosmic-rays-aerosols-and-liquid-water-clouds-appears-to-exist-on-a-global-scale/
and here
http://www.thepeoplesvoice.org/TPV3/Voices.php/2009/07/20/decreases-in-cosmic-rays-affect-athmosph
Why would you purposely misrepresent what Svensmark cites when an observation exists and was cited in the op-ed piece? There are times when I think maybe it is better that you take your opinions elsewhere, this is one of them.
Take a time out.
-A

mark twain
September 11, 2009 12:37 am

svensmark:
One can wonder that the international climate panel IPCC does not believe that the sun changed activity has no effect on the climate, but the reason is that they only include changes in solar radiation…
thats not true!
ipcc explains the warming up to 1950 with natural forces, inkl. sun aktivities!
(i m an ipcc skeptic, but we should not try to missinterpretate them…)

Tenuc
September 11, 2009 12:47 am

If only the climate of earth were so simple that major changes depended just on one factor. Unfortunately this simplistic view is wrong, and our chaotic climate depends on multiple interlinked mechanisms to keep it within the bounds of a few degrees of temperature variability we usually see.
The Svensmark theory may well be correct, but like CO2 caused AGW, I’m sure it will not turn out to be the sole mechanism. However, with Copenhagen around trhe corner, it’s good to see some publicity which shows the CO2 theory is very weak and perhaps help stop global Cap & Trade being adopted.

dorlomin
September 11, 2009 1:00 am

http://www.sciencemag.org/cgi/content/abstract/298/5597/1410

Changes in the global water cycle can cause major environmental and socioeconomic impacts. As the average global temperature increases, it is generally expected that the air will become drier and that evaporation from terrestrial water bodies will increase. Paradoxically, terrestrial observations over the past 50 years show the reverse. Here, we show that the decrease in evaporation is consistent with what one would expect from the observed large and widespread decreases in sunlight resulting from increasing cloud coverage and aerosol concentration.

So global dimming is another of the myths then?

Barry Foster
September 11, 2009 1:03 am

What the Warmists forget (whether intentionally or not) is that this flatline of temperature (or even cooling) was not predicted by models. How could they predict it, because the models cannot be fed chaotics? Because of that, it shows that ANY future prediction, whether warming or cooling, is ridiculous. And I count-in this prediction of cooling. We CANNOT do that! Why has Svensmark not picked up anything from silly predictions of the Earth frying? We don’t know what the future climate will be, so what we SHOULD be doing is putting money into adaptation of whatever comes our way. It’s bizarre of some to think that we can warm the planet, but it’s equally bizarre to make predictions that we will be cooler too. A lack of sunspots may bring cooler temps, but maybe some other interaction will raise them – so they’ll be a balance. What it all means is that we don’t know, so why make our we do – either way? The econuts are too stupid to realise this, so let’s not follow their lead. We cannot predict next week’s weather with much certainty, certainly the Met Office here in England cannot get a 3-day forecast accurate over my town (I know because I’ve been monitoring it), so we should stop thinking that the Earth will warm or cool, and save money for whatever is thrown at us. Sooner or later we’re going to have to deal with a sizeable meteorite impact. Perhaps we should worry far more about that – with its effect on weather, climate, the money markets, food distribution, and disease & starvation.

UK Sceptic
September 11, 2009 1:05 am

If we are sliding into another LIA then is it possible we’ll see governments paying industry to pump out as much CO2 as it can?
On the other hand, the UK’s politicians are as dumb as rocks when it comes to science so they’ll keep reducing and sequestering until we all turn to lumps of ice or take a leaf out of Cromwell’s book.
Here’s a ray of hope from Cardiff University:
http://www.walesonline.co.uk/news/wales-news/2009/09/10/public-losing-faith-in-climate-change-scientists-find-cardiff-researchers-91466-24659733/
The number polled is really too small to be of any great use and there is one glaring statistic that just doesn’t ring true. It has to be said that the finding of only 5% of those polled feel the media is too alarmist is most probably wrong. Nearly everyone I know thinks media alarmism is not only way over the top, it’s also patronising and stupid.

Alexej Buergin
September 11, 2009 1:08 am

Will they force Prof. Svensmark to leave Copenhagen at “Copenhagen” ?
He could meet Mitchell Taylor and Ian Plimer in Copenhagen (Louisiana) at that time.

Tiles
September 11, 2009 1:11 am

Flanagan – ever heard of thermal inertia? That could well explain continued warming in the face of a fading sun. I’m not sure whether the numbers would add up, however.

dorlomin
September 11, 2009 1:13 am

“Barry Foster (01:03:31) :
What the Warmists forget (whether intentionally or not) is that this flatline of temperature (or even cooling) was not predicted by models. ”
Curious, this is not what I have been told, I have always understood that natural variability can cause temporary decreases in temperature. I guess we have different sources. Perhaps you could produce a quote that states what you have said this clearly?

mark twain
September 11, 2009 1:17 am

@Barry Foster (01:03:31) :
you are right.
but we are not able to stop climate simulations, this process has just started. off course we have many problems with that, because so many thinks are not predictable, sun, pdo, nao indizes etc. for the ozean circulations eg. we should have a better look at the arctic region. like 2007, there was a real minimum in sea icecover, but is there only more absorbtion in solar radiance? what about the heat content of an ice free part of the ozean and one sea ice covered for the month september (sun angle very low, high reflection by ozean water, almost the same as old ice and high energie flux from the ozean to the atmosphere, much “deeper” as with an ice hat).
chances in deep water circulation will be affected by such processes, eg….

NS
September 11, 2009 1:31 am

dorlomin (01:13:20) :
“Barry Foster (01:03:31) :
What the Warmists forget (whether intentionally or not) is that this flatline of temperature (or even cooling) was not predicted by models. ”
Curious, this is not what I have been told, I have always understood that natural variability can cause temporary decreases in temperature. I guess we have different sources. Perhaps you could produce a quote that states what you have said this clearly?
————————————-
You want him to produce a quote of what he just said? Doesn’t make a lot of sense. Can you produce a model that matches observations? A hypothesis that matches facts? Those are reasonable requests.
Also the underlying logic of your statement actually matches the statement by B.Foster, ie. that there is an underlying monotic trend of warming through CO2 – your point presumably being that we are just experiencing a “temporary blip” and that normal (warming) service will be resumed at some to be determined date in the future.

Morgan T
September 11, 2009 1:32 am

Let me give a helping hand here, regarding the Swedes he is refering to the war in 1658. It was so cold that the straight between Copenhagen and Malmoe froze and not only that the ice was so thick that the whole Swedish army with all their equipment marched over to Demnark, this was of course a total surprise for the Danish.

Alexej Buergin
September 11, 2009 1:34 am

“WUWT & Flanagan: Take a time out.”
Yes, the big C (Cryosphere) is on everybody’s mind and gets some people in a foul mood. In a few week we will look back and smile, citing Henry Miller (Quiet Days in Clichy): “It was a period when C was in the air.”

dorlomin
September 11, 2009 1:44 am

“You want him to produce a quote of what he just said? ”
Sorry there is not editing function here. I would like him to produce a quote that backs up this statement: “What the Warmists forget (whether intentionally or not) is that this flatline of temperature (or even cooling) was not predicted by models.”

Mick
September 11, 2009 1:46 am

Folks,
all this science is OK, but I’m afraid it’s irrelevant. One can’t defeat a paranoid religion with logic and common sense. Or argument.
The AGW is ideologically driven and politically executed religion of the green/left alliance. Unfortunately the ignorant public has a mob mentality,
the loudest megaphone wins.
Call me pessimist, I can’t see how civilisation (western) can get out of this 🙁

Allan M
September 11, 2009 2:00 am

Graeme Rodaughan (23:47:21) :
“Refreshing. Now if only the Politicians were paying attention…”
Well our UK’s (Brown) Prime Minister’s favourite trick when someone disagrees with him, is to turn to the person next to him and start a conversation. I don’t suppose he is atypical, just an extremist.
If only it were not a forlorn hope.
……….
Other fellow: “Well, Woody Allen once said that 80% of life is just showing up.”
PM Brown: “And I think the other half is paying attention.”

Patrick Davis
September 11, 2009 2:21 am

“Mick (01:46:48) :
Folks,
all this science is OK, but I’m afraid it’s irrelevant. One can’t defeat a paranoid religion with logic and common sense. Or argument.
The AGW is ideologically driven and politically executed religion of the green/left alliance. Unfortunately the ignorant public has a mob mentality,
the loudest megaphone wins.
Call me pessimist, I can’t see how civilisation (western) can get out of this :(”
I can. It’s called war.

September 11, 2009 2:27 am

dorlomin (01:44:14) :
James Hansen’s testimony to the Senate?
Anything by Gavin Schmidt

jmrSudbury
September 11, 2009 2:31 am

“UK Sceptic (01:05:16) :
If we are sliding into another LIA then is it possible we’ll see governments paying industry to pump out as much CO2 as it can?”
CO2 levels are already higher than the worst case scenario that the ensemble of models put forth. There is no need to add extra CO2. It obviously has little effect.
John M Reynolds

Allan M
September 11, 2009 2:32 am

Mick (01:46:48) :
“Folks,
all this science is OK, but I’m afraid it’s irrelevant. One can’t defeat a paranoid religion with logic and common sense. Or argument.
The AGW is ideologically driven and politically executed religion of the green/left alliance. Unfortunately the ignorant public has a mob mentality,
the loudest megaphone wins.”
But not forever. The ignorant public have a lot of common sense, and, although it takes a long time, they see through the sham (or scam). They do so much more now here in the UK. As Dick Lindzen said: “Ordinary people see through this, but the educated people are very vulnerable.” He must be the balancing optimist.
I have wondered why the greenie’s leaders, mostly the toffs here (not forgetting the US’s imported toffs), are so much in bed with the socialists. It seems a strange alliance. Maybe it comes from the old adage: “my enemy’s enemy is my friend.” The capitalists have given both lots a bloody nose, and fed an increasing population, and given us a prosperous lifestyle, etc.. The future problem may be that if they win as allies, they will have to fight it out between themselves later, and as always to the detriment of the general public.

September 11, 2009 2:35 am

The other global warming effect:
UK ‘could face blackouts by 2016’
http://news.bbc.co.uk/1/hi/sci/tech/8249540.stm
Or possibly whiteouts?

Flanagan
September 11, 2009 2:43 am

I’m sorry but, 1st, this op-ed does not cite an evidence – it just states them without any reference whatsoever. Moreover, in every study by Svensmark, including the last ones, the author somewhat “forgets to mention” the absence of trend in solar radiation and other indicators between the 50ies and the 90ies – strangely corresponding to a rapid average warming. This is apparent in the link Anthony gave me to the WUWT post:
– When a forbush decrease takes place, the water content of some clouds changes by 7% corresponding to a 10%-20% decrease of cosmic ray counts
– after a few days, the water content comes back to normal levels
again, there’s no proof that cosmic rays substantially influence the composition of clouds over long periods of times, especially as compared to other parameters like the ocean average temperature. If you prefer, this is weather, not climate.

Fred Lightfoot
September 11, 2009 2:44 am

i am 69 years old (a good year) I was born in New Zealand and had my 21st birthday in Antwerp Belgium, (studying petroleum engineering). In 1963 I flew from Europe to NZ, (4 days, now 24 hours). I have worked all my life in the Petroleum Industry, and if a Country has oil I have been there, you never find oil on main street, it’s always in the back of beyond, which gives me a different outlook than 90% of the other people. Weather (not climate) is one of the greatest of our worlds wonders. IT’S LOCAL !
I was in Stavanger Norway and on the tow of the Shell Brent Delta to the Brent field in the Northern North Sea, Shell spent millions and years on weather research before designing these platforms, as the zone has some of the most treacherous seas in the world. The water gap ( the distance from high tide calm water to the underside of the platform ) was designed for the 100 year wave. In the first winter the 100 year wave hit 84 times.
In Siberia winds of 152 km an hour and temp. of -47°C arrived with such precision that we used to run a sweep stake.
”Lightning never strikes twice”, but the top of the oil derrick in the jungle of Sarawak was hit 8 times in 30 minutes.
On an ex whaling mother ship converted into a drill ship (48,000 tonnes) off the coast of Indonesia in a tropical storm with 8 anchors out and in a ‘’storm mode” we where dragged 4 miles off location.
On a jack-up drilling rig on tow from Singapore to Sri Lanka with 2 tugs we went backwards for 24 hours.
In the desert of Saudi Arabia in 1996 with temp. in the mid 30’s C we went down to 18°C and 10 inches of hail in about half an hour.
Now we get politicians (failed lawyers) offering mega $ for research to ”prove” that us humans are in charge of the climate, if these 25-39 IQ ”humans” went and experienced the world, (not visiting the local Hilton) and realized how big our planet is and how small the human presence is we would not be trying to get milk from butterflies.

John Silver
September 11, 2009 3:23 am

“Svenskerne overraskede Danmark med at gå over isen”
should not be translated to:
“Swedes [were surprised to see Denmark to freeze over in ice]”
It is this thing that he refer to:
http://en.wikipedia.org/wiki/March_across_the_Belts
Typical of the LIA.

September 11, 2009 3:24 am

Personally, I would love to see Svensmark be correct and that AGW is not a concern because then we can rest knowing that there is, for the most part, nothing we can do about it.

NS
September 11, 2009 3:29 am

dorlomin (01:44:14) :
“You want him to produce a quote of what he just said? ”
Sorry there is not editing function here. I would like him to produce a quote that backs up this statement: “What the Warmists forget (whether intentionally or not) is that this flatline of temperature (or even cooling) was not predicted by models.”
————————————-
I hate to get in this game as it is your hypothesis the burden of proof is on you. But here’s a graph anyone can google it I think it’s off a pro-AGW site:
http://deepclimate.files.wordpress.com/2009/05/ar4-a1b-a2.gif
Here’s one off the millions of presentations of the IPCC:
http://www.ipcc.ch/pdf/presentations/briefing-bonn-2007-05/causes-projections-climate-changes.pdf
None of this is cherry-picked I just did a quick google before lunch……….
I mean, give us something to work with here – the models predict nothing, the science is tenuous at best relying on the infamous feedback process that has demonstrably never occurred. The whole hypothesis seeded on 1 guy’s mis-understanding of Venus’ atmospheric dynamic.
Now mass-hysteria, greed, laziness and massive incompetence – those are things that we *know* occur.

September 11, 2009 3:34 am

I can’t quite see why the Svensmark cloud theory is so controversial.
All the early subatomic particle observations were done with cloud chambers, so we know cosmic rays can seed clouds. We know that clouds increase albedo and thus have a cooling effect. Just because the correlations with climate aren’t bulletproof doesn’t mean they aren’t there, and doesn’t mean they don’t make a contribution to cooling and warming.
Take a look at public enemy #1. The CO2 chart climb is as steady as you get, but the global temperature it’s supposed to be driving seem pretty oblivious to it. Even the usually reliable sea level rise has flattened while CO2 just keeps on going up. About the only things keeping pace with CO2 are the GISS adjustments.

dorlomin
September 11, 2009 3:39 am

paulhan (02:27:36) :
Anything by Gavin Schmidt
——————————-
So the sun gets reflected out. These aerosols acted as a kind of sunshade over the planet that caused the planet to cool. Our group (though this is before my time), before this cooling happened, did the calculations with their model, and predicted that the cooling would reach a maximum of about half a degree in about two years time. Lo and behold, such a thing happened.
http://www.edge.org/3rd_culture/schmidt09/schmidt09_index.html
Sorry I interupted a rant there didnt I. Back to normal programming, a few invectives about socialism, religion, Gore, Mann….. you all know the drill.

DaveF
September 11, 2009 3:48 am

I don’t quite understand why Professor Svensmark says it looks like the Sun is going into a Grand Minimum like in the Little Ice Age. Since the Mediaeval Warm Period and the Little Ice Age lasted around 500 years each, isn’t it reasonable to expect the present warm period to last 500 years as well? I expect there were minor variations in temperature during these periods similar to what we’ve seen in the last hundred years, so wouldn’t the most likely explanation of the current temperature drop be that we’ve entered a thirty-year period like the fifties and sixties followed by a return to the temperatures of the nineties and so on? Or have I missed something?

Stefan
September 11, 2009 3:55 am

dorlomin (01:13:20) :
I have always understood that natural variability can cause temporary decreases in temperature.

Is there a reference that defines “temporary” ?
I think there should be one. The future is full of possibilities, so predictions are inherently vague. If the prediction didn’t come true today, maybe it will come true tomorrow, or the day after, and so on. So anybody making a prediction can always defend their prediction on the basis that just because it hasn’t happened yet, doesn’t mean it isn’t going to happen. (And whilst this is reasonable, perhaps it is not useful.)
At some point though, we begin to wonder that the predicted outcome isn’t going to happen inside a timeframe that matters. Global warming might be “temporarily” masked by “natural variability” for 10 or 20 years. Well, what if in 20 years we discover that it continues to be “masked” for another 20 years… we’re now talking about a timeframe so far into the future that we’re trying to plan for a world that we simply don’t understand because so many other things could have changed in the meantime.
People focus so much on the climate–what will biotech be like in 20 years? Are we using specially designed bacteria to do everything from clean our clothes to clean up radiation and produce energy?
Who can say? What relevance do our mitigation actions have now to a world so different? See, someone needs to define what “temporary” means in these climate debates, what “temporary” means for practical purposes.

September 11, 2009 4:01 am

Svensmark: When the Sun is active its magnetic field shields better against the cosmic rays from outer space before they reach our planet […] As the sun’s magnetism has doubled its strength during the 20th century
(1) The cosmic ray intensity has shown no trend since accurate measurements began in the early 1950s
(2) The Sun’s magnetic field has not doubled in the last 100 years. It is now precisely where it was 108 years ago.

RR Kampen
September 11, 2009 4:04 am

(small correction)
Svensmark is quite correct. Summer (June, July, August) 2009 was globally colder than summer 1998 (though warmer than all others).
September is currently trying for the record. Warmest, of course.

Mark Fawcett
September 11, 2009 4:22 am

Just recovered from passing out whilst reading the following on the BBC:
http://news.bbc.co.uk/1/hi/sci/tech/8249668.stm
Including: “Twice as many people now agree that “claims that human activities are changing the climate are exaggerated”.
Four in 10 believe that many leading experts still question the evidence. One in five are “hard-line sceptics”.

And: Half of the people surveyed believed the media was too alarmist.
Now it’s that last paragraph I particularly like – MSM really, really doesn’t like the thought of losing its audience…
Cheers
Mark.

Chris Schoneveld
September 11, 2009 4:24 am

The proof of the pudding is, of course, that cloudiness has decreased during periods of warming and increased during the last 8 years of moderate cooling, but that is the one climate metric that has not been measured with any degree of accuracy. Unfortunately, there is not even the slightest indication that there is a correlation between cloudiness and global temperatures, as far as I am aware of. Even a correlation between global temperatures (let alone cloudiness) and solar activity has always been refuted by Leif.

rbateman
September 11, 2009 4:25 am

Stephen Wilde (23:48:17) :
There is really not much correlation between observed climate changes and the progression of a single solar cycle which is surprising if the cosmic ray effect is at all significant.

It is NOT correlated, it is associated. There is no 1 on 1. What Henrik is describing is the cosmic food chain. It starts, for our purposes, at the galactic level, proceeds then to the Solar System level, and then to the Terrestrial level.
When the Sun goes quiet, we here on Earth experience more of the effects of Galactic influence, which is never quite totally overriden by the Sun. The patch cord does not end at the Sun.
The IPCC’s man-centered universe is as backwards as the Dark Ages, feeding on ignorance and fear of the place we live.
Someday, we will be able to predict both the climate and the solar cycles, but not if the IPCC manages to control science first.
As for the top of the food chain, we are still at it discovering the makdeup, diversity and structure of the Galaxy our solar system careens through.

Robert
September 11, 2009 4:32 am

As it became common knowledge that AGW would cause increased wildfires, mudslides and risk of earthquake, I moved from California to New Orleans.
After Katrina it had become obvious that AGW had caused stronger and more frequent hurricanes, so I moved again, to Maine.
But not long after that, when we learned that the seas would rise 20 feet I moved to inland Texas, on a hill.
And as it became apparent that millions would soon die from the heat, I relocated to Nome, and just in time too.
And now I suppose you think I should move to Ecuador ahead of the glaciers formed by the coming “Not so Little” ice age. Well I’m here to tell ya buddy, I’m sticking with the IPCC, and my igloo, and to hell with all your scientific data – I’m going with the models, they’ve saved me many times before.

rbateman
September 11, 2009 4:35 am

Leif Svalgaard (04:01:53) :
(1) The cosmic ray intensity has shown no trend since accurate measurements began in the early 1950s

Put your hand over the left side of that graph and cover up everything prior to 1990 and look again. Ask yourself a question: Where have you seen that slope recently?

Jim, too.
September 11, 2009 4:37 am

Leif’s summary graph has taken a subtle turn over the past months that I find interesting. The dashed lines (which represent some ‘average’ function) for the F10.7 and Sunspot curves were giving a reasonable indication that a minimum was likely reached in both measures.
Lately, though, the average for the F10.7 data has recurved to the downside while the sunspot ‘average’ has also lost it’s minimum and has flat-lined.
http://www.leif.org/research/TSI-SORCE-2008-now.png
I am not implying anything really except that what has been a very quiet sun seems to have become even more quiescent the past few months. This truly is a fantastic opportunity to study the sun with the finest instruments ever available, at such a minimum level of activity. At any other, more ‘normal’ solar activity level, the opportunity to compare the relationship to climate and sun would be made that much more difficult.
Apologies to Leif if anything I presumed is overstating…
J2

September 11, 2009 4:42 am

“On June 3, 1999, the European Space Agency announced that the Sun’s magnetic field is getting progressively stronger. Thanks to the unprecedented overview of solar magnetism provided by the ESA-NASA spacecraft Ulysses, a team at the Rutherford Appleton Laboratory near Oxford has been able to work out the recent history of the Sun’s magnetic behavior. According to calculations by British scientists, the strength of the Sun’s magnetic field has doubled during the Twentieth Century alone. This finding may help to clarify the Sun’s contribution to climate change on Earth. The hydrogen → helium fusion model does not explain this phenomenon.”
http://www.thunderbolts.info/tpod/2009/arch09/090909polarity.htm

Nick Yates
September 11, 2009 4:45 am

Leif Svalgaard (04:01:53) :
Svensmark: When the Sun is active its magnetic field shields better against the cosmic rays from outer space before they reach our planet […] As the sun’s magnetism has doubled its strength during the 20th century
(1) The cosmic ray intensity has shown no trend since accurate measurements began in the early 1950s
(2) The Sun’s magnetic field has not doubled in the last 100 years. It is now precisely where it was 108 years ago.

If only WUWT could get Henrik Svensmark to discuss this here with Dr Svalgaard. It would be so interesting.

Mark
September 11, 2009 4:45 am
Charlie
September 11, 2009 5:01 am

The latest addition to my repertoire of quotes:
“..I think it is important to recognize that nature is completely independent of what we humans think about it.”.
— Professor Henrik Svensmark, director of the Center for Sun-Climate Research at DTU Space.

September 11, 2009 5:01 am

It’s always refreshing when things make sense. The whole concept that changes in the sun might not affect the earth temp is extraordinarily hard to accept. The cool thing is we get to see for ourselves what happens next.

Philip_B
September 11, 2009 5:04 am

dorlomin (01:44:14) :,
The onus is on you to produce a model prediction that disproves his claim that no model predicted the flatlining of temperatures.
Producing a quote means nothing.
Otherwise, there are 2 issues here.
1. Have the models predicted temperatures over the last 10 years?
Clearly the models haven’t been remotely close to an accurate prediction of the last 10 years temperatures.
2. Have temperatures over the last 10 years disproved in a scientific sense the climate model predictions?
Lucia at the Blackboard concludes that they have, but you should read her blog to see exactly what she says.

Editor
September 11, 2009 5:07 am

I have no way of knowing whether Dr. Svensmark is correct about cosmic rays and clouds but he is definitely not correct about poor harvests causing a 30% decline in Europe’s population during the Little Ice Age. That phenomenon was caused by something called the Black Death, a bubonic plague spread by flea carrying rats that started in China, spread across Asia and reached Constantinople about 1346. By 1347 it had hopped a ship to Genoa and by 1351 nearly half the population of Europe was dead. European population did not reach it’s pre-plague level until just about 1500, at which point it was about just slightly larger than the population of Europe at the height of the Roman Empire.

Editor
September 11, 2009 5:11 am

Nick Yates (04:45:09) :
Hmmmm…. Svalgaard, Archibald and Svensmark…. a three way conversation I’d pay to watch…. I’d pray real hard for the brains to be able to follow them….

Mark
September 11, 2009 5:12 am

I get tired of people saying that since solar activity “peaked” in the 1990’s and yet temperatures peaked later than that then solar activity can’t be a major factor on influencing the climate. First, as many here have said, no one is saying that solar activity is the ONLY driver of climate – only that its effect has been understated (and as a result the guesstimate of CO2 effect has been overstated). Other key factors that must be considered in trying in interpret temperature changes over the last 30 years include changes to oceanic temperature phases (PDO, AMO) and the major volcanic events such as El Chichon and Pinatubo. The other key thing to keep in mind is that climatic reaction to solar activity is not instantaneous due to the thermal inertia of the oceans. What is interesting is that if you look at cosmic ray activity from a cumulative perspective factoring in intensity changes and DURATION of these changes, it is clear that there is a strong correlation between the direction of global temperature change and solar activity (as inversely related to cosmic ray activity). The following plot shows the cumulative differential between the point-in-time cosmic ray activity at Oulu and the average over the displayed time period.
http://www.geocities.com/mcmgk/Cumulative_CR_Inverse.jpg
What is clear from this plot is that an in increase in temperature from 1960’s to the 2000’s is very evidently correlated with the cumulative inverse of cosmic ray activity, noting the temperate peak that we might have otherwise seen in the early 1990’s was wiped out by the Pinatubo event. Given that, one would expect that temperatures (other than the 1998 super El Nino) would have peaked in the 2000’s (which they have done) and would now be dropping off (which they are doing). Once the current El Nino fades, expect temperatures to continue their drop!

Mark
September 11, 2009 5:15 am

As to how well the CO@ fanatics models have done:
http://theresilientearth.com/files/images/hansen_forecast_1988-2.jpg

Andrew Miceli
September 11, 2009 5:15 am

Nick Yates (04:45:09) :
If only WUWT could get Henrik Svensmark to discuss this here with Dr Svalgaard. It would be so interesting.
I could not agree more.

Tom in Florida
September 11, 2009 5:18 am

rbateman (04:25:47) :
“The IPCC’s man-centered universe is as backwards as the Dark Ages”
Quote of the decade!

September 11, 2009 5:20 am

Mark Fawcett (04:22:26) :
And: Half of the people surveyed believed the media was too alarmist.
Half of the American public believes the Earth and the Universe is only 6000 years old.
Stephen Wilde (23:48:17) :
When the Sun goes quiet, we here on Earth experience more of the effects of Galactic influence, which is never quite totally overriden by the Sun.
The solar modulation is only a few percent, and the Galactic influence does not vary on a time scale of centuries or faster.
rbateman (04:35:31) :
Put your hand over the left side of that graph and cover up everything prior to 1990 and look again. Ask yourself a question: Where have you seen that slope recently?
http://www.puk.ac.za/fakulteite/natuur/nm_data/data/nmd_e.html
Don’t want to cherry pick data. Look at what we’ve got [and remember that you have to look at many stations as there are small variations from station to station – for many reasona, one being that it is just hard to maintain a constant calibration over decades]
Jim, too. (04:37:00) :
Leif’s summary graph has taken a subtle turn over the past months that I find interesting.
There were some activity back in May and June. That jacks up F10.7 and it takes 3 to 4 months for that to die away, which it seems to have done by now. Hence the seeming downturn.
Børge Svanstrøm Amundsen (04:42:33) :
According to calculations by British scientists, the strength of the Sun’s magnetic field has doubled during the Twentieth Century alone.
Those same scientists now know that the doubling didn’t happen.
Nick Yates (04:45:09) :
If only WUWT could get Henrik Svensmark to discuss this here with Dr Svalgaard. It would be so interesting.
He won’t, as Al Gore won’t either.
Jeff Id (05:01:28) :
It’s always refreshing when things make sense
Evolution has shaped us so, that we are very good at accepting false positives: it is better [falsely] to think that those shadows in the bushes are a tiger, than to just dismiss them as ‘fluff’.

vg
September 11, 2009 5:22 am

I.ve slowly become a convinced denier of AGW. I think Flanagan must definitely be allowed to stay on… he’s our best argument

Ron de Haan
September 11, 2009 5:22 am

Anthony, why don’t you contact Svensmark directly and ask him to respond.
This subject is too important with too many questions.
You can find his contact data and his publication here:
http://www.space.dtu.dk/English/Staff/Sun_Climate.aspx?lg=showcommon&id=38287&type=publications

Stefan
September 11, 2009 5:29 am

Mick (01:46:48) :
I have wondered why the greenie’s leaders, mostly the toffs here (not forgetting the US’s imported toffs), are so much in bed with the socialists. It seems a strange alliance.

There’s a general polarity opposites, between the group and the individual. When thinking about problems, people can be biased against one or the other. Some people believe poverty is the result of an unfair system, so they want to reform the group’s institutions, to make the world more fair. Sometimes people believe poverty is the result of the individual’s lack of character and fortitude, lack of ambition, lack of ethics, and so they want to change the group’s institutions to become more about rewards for success and punishment for failure.
Where the greens are allied with the socialists is in their common belief that the system is bad, the system is unfair, the system is allowing greedy individuals to harm the environment, and exploit fellow man. So they are in favor of tighter regulation, and they are in favor of strong governments that will keep greedy reckless businesses in check. And because those businesses are selling products to consumers, and those consumers for the most part don’t seem willing to abandon buying cars and eating meat, then even the principle of democracy is becoming suspect, and places like China start looking more attractive to greens, because China has the authority to make the people follow its directives.
What the greens fail to notice however, is that authoritarian “social order” can serve any number of priorities. It can serve empire building, it can serve warmongering, it can serve any group goal, really. There is nothing inherently green about being authoritarian. And groups can also organise in far more interesting ways than simply becoming authoritarian top-down power structures.
I think the greens that follow the authoritarian model are in for a nasty shock.

Ron de Haan
September 11, 2009 5:29 am

Robert (04:32:09) :
“As it became common knowledge that AGW would cause increased wildfires, mudslides and risk of earthquake, I moved from California to New Orleans.
After Katrina it had become obvious that AGW had caused stronger and more frequent hurricanes, so I moved again, to Maine.
But not long after that, when we learned that the seas would rise 20 feet I moved to inland Texas, on a hill.
And as it became apparent that millions would soon die from the heat, I relocated to Nome, and just in time too.
And now I suppose you think I should move to Ecuador ahead of the glaciers formed by the coming “Not so Little” ice age. Well I’m here to tell ya buddy, I’m sticking with the IPCC, and my igloo, and to hell with all your scientific data – I’m going with the models, they’ve saved me many times before”.
Very funny Robert.
I am sure you will die from “natural causes”.

Johnny Honda
September 11, 2009 5:44 am

@ Scott Mandia
I looked at your website. It starts with a “wisdom”:
“What’s the use of having developed a science well enough to make predictions if, in the end, all we’re willing to do is stand around and wait for them to come true”
Aha, predictions. They are difficult, especially when they are about the future. Now let’s look who is spreading wisdom like this:
“Nobel Laureate Sherwood Rowland (referring then to ozone depletion)”
And what happend concerning all the ozone predicitions? Did you check it? Do you know that the Ozon hole is still here, and as big as always, instead the FCKW concentrations in Antarctica decreased?
What about all the people who should be fried because of the naughty hole in the sky? All the billions with skin cancer?
If people had checked the story with the Ozone hole, the climate-change story would never have happend.

Nogw
September 11, 2009 5:53 am

Fred Lightfoot (02:44:03) : Wisdom 100% pure:
Now we get politicians (failed lawyers) offering mega $ for research to ”prove” that us humans are in charge of the climate, if these 25-39 IQ ”humans” went and experienced the world, (not visiting the local Hilton) and realized how big our planet is and how small the human presence is we would not be trying to get milk from butterflies

Flanagan
September 11, 2009 5:54 am

Well Leif, I made exactly the same comment as you concerning the absence of trend since the 50ies. But only one comment out of two gets published (at least in my case).

Barry Foster
September 11, 2009 5:59 am

Dolormin. Thank you for your reply (and thanks to others who have replied for me), but I don’t think I could put it any better than Philip_B. I have been following climate change in earnest since 2003 – and have read very much on the subject. I have seen many graphs predicting (from a point back) what the coming temperatures would be up to 2000 and beyond. I haven’t seen a single graph (from a model) predicting that we would be at the anomaly right now. If you have then kindly give us all the web address, as I obviously missed it. Climate is COMPLETELY unpredictable – either way, in my opinion based on all that I have read. There are too many checks and balances and things we clearly don’t understand about how the chaotic climate system works. At this stage of our knowledge, to state that we will either warm or cool is preposterous in the extreme. I laugh every time I see a Warmist talk of future climate – and laugh also at those who say we will cool. They’re very brave, or stupid. You decide.
PS Sorry if I cannot reply quicker, but I don’t have access to my PC in my work.

Ron de Haan
September 11, 2009 6:01 am

rbateman (04:25:47) :
Stephen Wilde (23:48:17) :
There is really not much correlation between observed climate changes and the progression of a single solar cycle which is surprising if the cosmic ray effect is at all significant.
“The IPCC’s man-centered universe is as backwards as the Dark Ages, feeding on ignorance and fear of the place we live.
Someday, we will be able to predict both the climate and the solar cycles, but not if the IPCC manages to control science first”.
rbateman,
How right you are.
The populations of the West are brainwashed by their Governments.
People are told that we have to return to other, less ambitious and material values, eat less meat, show more respect for Government and Government Officials.
In the mean time our politicians state we have to invest more money in education.
That’s what they say, but they don’t.
Germany spend 7 billion Euro’s in a cash for clunkers project but has no budget
for education.
Billions have been invested in spin and manipulation.
Bilions more are spend to lure the corrupt leaders of the Third World countries into a the Cimate Change Scam and stop the development of their populations for decades to come and deprive them from cheap food and energy.
The skeptic opposition is infiltrated by people who take the lead in the discussions but support the insane Carbon Taxation.
This is a frontal attack on human civilization.
Fortunately most people in the West are fed up with Government Meddling and spending. Even if people lack the knowledge or even the interest for the Climate debate, they don’t want to lose their freedom.
If this hoax is stopped however, it has to be stopped in the USA.
If the USA rejects the Climate Bill, we have bought more time and time is our side.

Bill McClure
September 11, 2009 6:08 am

Fred Lightfoot (02:44:03) :
Fred , The weather on my Missouri farm is tame compared to what you have seen! But I agree with you the AGW people seem to experience weather from the evening news. After years of listening to weather forcasts I greatly appreciate the improved accuracy we have today. If the weather forcast says it will be dry for three days if can cut hay and get it baled without it getting wet half the time. It used to be any forecast past 24 hours was usless. My point is this 3 day forecasts are barely accurate enought to use as aplanning tool, a weekly or 14 day forecast is a poor guide , but a 3 month forecast is judged aganst history. Anything longer is wishfull thinking.

Nogw
September 11, 2009 6:08 am

It seems that some hearts beat secretly thanks to CO2 feedback…

Johnny Honda
September 11, 2009 6:09 am

, you have a “fan-website”, did you know that?
There is a guy who is whining about most articles here and calls this “blog” the funny name “open mind”
http://tamino.wordpress.com/
I can see absolutely no sign of “open mind” in this website

Bob H.
September 11, 2009 6:10 am

Stephen Wilde (23:48:17) :
The main shifts in global air temperature trend seem to occur at approximately 25 to 30 years intervals when the oceans change phase. Even on shorter ENSO type interannual time scales we see a rapid and direct response in the air to ocean SST changes.
There is really not much correlation between observed climate changes and the progression of a single solar cycle which is surprising if the cosmic ray effect is at all significant.
I wouldn’t expect to see a correlation between a single solar cycle an climate changes, but then if one looks at the oceans as a large resistor/capacitor pair and the atmosphere as a small resistor/capacitor pair, a better correlation may be possible. Let me explain, since the ocean has an enormous capacity to store energy, it cannot change very quickly, hence little correlation would be observed. A single solar cycle is simply too short a time span. The oceans serve as a low-pass filter, absorbing higher frequency events. Because of the limited surface area of the ocean (compared to its volume) it would release energy at a limited rate (the resistor). Hurricanes and tropical storms are essentially a short to the upper atmosphere, hence a higher energy release. The atmosphere has only a small capacity (small capacitor) compared to the ocean (large capacitor) and will respond to changes more quickly (high-pass filter). This would be the daily weather. How galactic cosmic rays (GCM) affect the formation of clouds, and the newly discovered interaction between the solar wind and the magnetosphere affect the weather and climate is yet to be seen.
The analogy presented above is undoubtedly overly simple, and new research is adding to our knowledge every day, but it could be modeled, probably with better accuracy than the current global climate models than the IPCC uses.

Mike Lewis
September 11, 2009 6:11 am

Leif Svalgaard (04:01:53) :
(2) The Sun’s magnetic field has not doubled in the last 100 years. It is now precisely where it was 108 years ago.
This is way outside my area of expertise (if indeed I even have one) but thought this might be what Dr. Svensmark was referring too? AOMF is average open magnetic field.
“We can see that both models exhibit increase of AOMF approximately by a factor of two in the first half of 20th century, confirming thereby the known results (see, e.g., Lockwood et al. 1999).”
Source: http://www.google.com/url?sa=t&source=web&ct=res&cd=2&url=http%3A%2F%2Fjournals.cambridge.org%2Fproduction%2Faction%2FcjoGetFulltext%3Ffulltextid%3D288617&ei=k0mqSoynDKD8tgeywMCiCA&usg=AFQjCNHAYfOF_moOWZdQUcOI24uvwuRRgQ

An Inquirer
September 11, 2009 6:16 am

mark twain (00:37:15): ” . . . ipcc explains the warming up to 1950 with natural forces, inkl. sun aktivities!”
Could you supply a reference that supports your statement?

Invariant
September 11, 2009 6:19 am

Leif Svalgaard (04:01:53) : The Sun’s magnetic field has not doubled in the last 100 years. It is now precisely where it was 108 years ago.
Yes. However, the accumulated or integrated effect of the Sun’s magnetic field shows an increasing trend the last 100 years, and I would argue that this matters more than the instant value. If you take your HMF B data (http://www.leif.org/research/HMF-1835-now.xls) and calculates this function,
T_est = 0.007640*cumsum(HMF_B-5.7848)-0.4470;
you will see what I mean. The implication is that values of HMF B lower than 5.7848 reduce global temperature while values of HMF B greater than 5.7848 increase global temperature. The reason for the increase is that shorter cycles tend to contribute more since they usually have shorter intermediate periods where HMF_B is below 5.7848. Now, I do not take this speculative toy model literally. My main point is that any integral of solar activity (HMF B, TSI, …) may lead to the conclusion that the global temperature could increase more with solar cycle 22 and 23 than other cycles and decrease with solar cycle 14 and 15. I am not saying that Svensmark is correct, what I am saying is that we cannot say that he is wrong – he may be close.

Patrick Davis
September 11, 2009 6:23 am

“Ron de Haan (06:01:30) :
Fortunately most people in the West are fed up with Government Meddling and spending. Even if people lack the knowledge or even the interest for the Climate debate, they don’t want to lose their freedom.”
If that were true why do these “meddling and spending Govn’ts”, it appears, continually get re-elected? UK New Labour, been there 10 years now. I expect that will change simply because Bliar gave up and Brown, unelected, took over. Australian’s voted for KRudd747 because of the involvement in the Irag/Afgahnistan wars, lead by Bush, supported by Howard (and Bliar). Unfortunately, in Australia, too many people “support” AGW. That’s the second biggest reason why KRudd747 won.

Peter Sørensen
September 11, 2009 6:27 am

Leif,
You write that the solar magnetic field has not doubled in the last 100 years. I found this article from Nature :http://www.ukssdc.rl.ac.uk/wdcc1/papers/nature.html
Acording to this article the solar magnetic field has doubled since 1901

A Wod
September 11, 2009 6:34 am

An article by frethack on the Naked Scientists website says that there is a correlation between ITCZ (Inter Tropical Convergence Zone) and solar activity in its effects on the Gulf Stream. It is not work that the IPCC has taken account of. Unfortunately the accompanying figures are not visible on my computer.

Oliver Ramsay
September 11, 2009 6:48 am

dorlomin (01:44:14) :
“You want him to produce a quote of what he just said? ”
Sorry there is not editing function here. I would like him to produce a quote that backs up this statement: “What the Warmists forget (whether intentionally or not) is that this flatline of temperature (or even cooling) was not predicted by models.”
—————
Dorlomin, I don’t think you understand this statement. You should not ignore the subject and verb of the main clause. You are demanding that someone corroborate his statement that “Warmists forget…” . In light of our awareness of what models predict, your quote from Gavin demonstrates that warmists forget.

Jon Jewett
September 11, 2009 6:49 am

Robert (04:32:09) :
“I relocated to Nome, and just in time too”
Uhhhh, I hate to tell you this, but…..
Those gold strikes that were found in the hills north of Nome? That’s the old beach line. Placer deposits formed from gold washed out of the hills. When the gold got washed down to the beach line, wave action caused the gold to settle to the bed rock.
So, you may want to move above the locations of those old gold strikes ’cause that’s where global warming will put sea level. As I recall, they were some 200 feet above the present site of Nome.
But then, there are also some ancient beach lines about the same distance UNDER the water there. That’s where global cooling will put the beach line.
You pays your money, you takes your choice.
(I spent a summer anchored off of Nome working for the Marine Minerals Technology Center expedition to find sea floor placer deposits back in ’67.)
Regards,
Steamboat Jack

September 11, 2009 6:55 am

Thanks for the hat tip Anthony 🙂 My first.
“Svenskerne overraskede Danmark med at gå over isen”
Means
“The Swedes surprised Denmark by walking across the ice”

Ken S
September 11, 2009 6:55 am

“Flanagan (00:36:42) :
A very mysterious mechanism indeed. And still not supported by any observation. Moreover, how is it the sun is “fading” since the 90ies and all we got is a warming? Even 20 years later? 2009 is not going to be a cold year, far from that. August and July were globally pretty hot and September seems to be setting a new record
http://discover.itsc.uah.edu/amsutemps/amsutemps.html
check Channel 5″
I look forward to reading Flanagan’s nonsense!
I wish he commented every day; good laugh of the day!
Enough said by me!

LarryD
September 11, 2009 6:56 am

FYI: Sunlight recorders
This is a Campbell-Stokes recorder (developed in 1879) http://data.piercecollege.edu/weather/duration_sunlight_recorder.html
A Giles recorder http://www.flickr.com/photos/59874422@N00/2034574063/

Don S.
September 11, 2009 6:58 am

Lightfoot: A great read, Fred. Your oilfield life was more adventurous than my military one. I don’t know if you realize that your account of the various situations you encountered is way too specific with regards to temperatures, wind speeds, wave heights, hail depths and lightning strikes.
You see, Fred, everything in climate research is postulated from proxies for actual events. In this way it is possible to model the temperature of an area with a 1600K radius with a single temperature reading and forecast the temperature 100 years hence to an accuracy of one one-hundredth of a degree C. Your reports of actual events, should the dates become known, would destroy no end of GCMs in which taxpayers are heavily invested.;-)
You’re a breath of fresh air, sir.

dorlomin
September 11, 2009 7:05 am

Barry Foster (05:59:33) :
Dolormin. Thank you for your reply (and thanks to others who have replied for me), but I don’t think I could put it any better than Philip_B. I have been following climate change in earnest since 2003 – and have read very much on the subject. I have seen many graphs predicting (from a point back) what the coming temperatures would be up to 2000 and beyond. I haven’t seen a single graph (from a model) predicting that we would be at the anomaly right now.
—————————————————–
Graphs?
http://www.eoearth.org/media/draft/f/f5/IPCC_AR4_WG1_ch10_fig10.26.jpg
None of the graphs I have seen have shown what will happen, they have only produced estimates of what might happen within a range of confidence. If and when they break out of the range of variability of the graph, then they will have a problem. Not showing the idiocyncratic movements dont tell us anything.
Models aside, back to basics. The earth is warmer than it should be due to its atmospehre, a phenominem known as the greenhouse effect.
CO2 is a well understood greenhouse gas.
CO2 has been building in the atmosphere as the sinks have been exceeded by the output of human activities.
All things being equal this should be a positive forcing on the temperature.
The range of that forcing is where the debate is. Not over modelers personalities, not over politicians, not over how people are using the science for for….. its the climate sensitivity to CO2.
Real skepticism is being conservative about the climate sensitivity and being conservative about every new proposed forcing.
Skepticism is so easy and natural for a scientist. Jumping on board the Svennsmark train with both feet is not skepticism……

dorlomin
September 11, 2009 7:06 am

” Not showing the idiocyncratic movements dont tell us anything. ”
should have read “That they are not showing the idiocyncratic movements of the climate does not tell us anything. “

Nogw
September 11, 2009 7:13 am

Ron de Haan (06:01:30) :
If this hoax is stopped however, it has to be stopped in the USA
…waiting cavalry…but if it doesn’t appears, then what?
What about Russia and China?, do their scientists/politicians believe in this global warming/climate change creed?
In general we could say that it comes from those who we pay to work for us, so in the whole world it should be forbidden, for any elected official, to change establishment unless specifically authorized by us, their employers.
Because only they, because of not having to struggle for daily living, have the time and leisure enough to concoct petty theories and pretend god’s part playing.

tallbloke
September 11, 2009 7:16 am

Leif Svalgaard:
“According to calculations by British scientists, the strength of the Sun’s magnetic field has doubled during the Twentieth Century alone.”
Those same scientists now know that the doubling didn’t happen.

Quite right Leif. They now estimate that it was a 79% increase rather than a 100% increase.

William
September 11, 2009 7:22 am

Philip 05:04
Be careful about how you represent Lucia’s work. It does not invalidate GCM predictions yet. It will take another 10-15 years of data to do that and the temperatures we are now experiencing could very well be a pause before further increases.
It’s clear that our understanding of all that effects our climate is small and still growing. Don’t be ignorant to the fact that man has changed and continues to change the face of the earth and continues to pump CO2 into the air and pollute the water. You may want to read up at this site: http://pielkeclimatesci.wordpress.com/
The net effect of man changing the globe is that we are changing climate directly and by what we pump into the air. The changes may not be the catastrophe’s the IPCC predicts but don’t doubt for a minute that they are ocurring.
Thanks
William

Ron de Haan
September 11, 2009 7:28 am

Scott Mandia (03:24:55) :
“Personally, I would love to see Svensmark be correct and that AGW is not a concern because then we can rest knowing that there is, for the most part, nothing we can do about it.”
Scott Mandia,
You are really incredible.
You master the art of writing a ton of crap in a single sentence.
“If AGW is not a concern and we are heading for a new ice age we can rest?”
If Svensmark is correct, we will have a serious problem feeding the world’s population.
Cooling, look at our history, is a much bigger threat to humanity than any warming.
But the biggest threat for all of us right now is the political objective that lies behind
the AGW/Climate Change Doctrine.
So, wake up to the facts and start using your brain.

Patrick Davis
September 11, 2009 7:33 am

“tallbloke (07:16:12) :
Leif Svalgaard:
“According to calculations by British scientists, the strength of the Sun’s magnetic field has doubled during the Twentieth Century alone.”
Those same scientists now know that the doubling didn’t happen.
Quite right Leif. They now estimate that it was a 79% increase rather than a 100% increase.”
And that is still an estimate. Estimates are like “golbal average temperatures”, they are meaningless.

Steven Hill
September 11, 2009 7:35 am

It’s easy to see that man better start looking into where we can grow enough food during the future cooling period and not wasting time on the stupid AGW politics.
But than again, I think were on the slope towards change that cannot be changed by any man.

Dell Hunt, Michigan
September 11, 2009 7:36 am

The Good News: Global Warming is over.
The Bad News: Global Warming is over.
And after one of the coldest winters and coolest summers here in Michigan this past year, global warming is bound to be missed.

Chris Schoneveld
September 11, 2009 7:36 am

Leif Svalgaard (05:20:47) :
“Nick Yates (04:45:09) :
If only WUWT could get Henrik Svensmark to discuss this here with Dr Svalgaard. It would be so interesting.”
He won’t, as Al Gore won’t either.”
This very, very close to an ad hom. quite uncharacteristically for Leif.

RR Kampen
September 11, 2009 7:38 am

“Indeed, global warming stopped and a cooling is beginning. No climate model has predicted a cooling of the Earth, on the contrary. This means that projections of future climate is unpredictable, writes Henrik Svensmark.”
So clever. Future climate is unpredictable but Svensmark knows ‘a cooling is beginning’ 🙂

September 11, 2009 7:39 am

@ Robert (04:32:09) :
After Katrina it had become obvious that AGW had caused stronger and more frequent hurricanes, so I moved again, to Maine.
Atlantic hurricane frequency follows a natural 20 to 30 year cycle. The current “active” cycle began in 1995. According to Vechi, et. al. (2008) warmer sea-surface temperatures have likely contributed to more intense hurricanes and will continue to do so into the future. Of less certainty is whether or not the frequency of hurricanes is being influenced by global warming. More research is needed to test this hypothesis. I would read Dr. Gray’s opinions on this as he is quite the authority on hurricanes.
Vecchi, G.A., Swanson, K.L., & Soden, B.J. (2008). Whither hurricane activity?. Science. 322, 687-689.
@ Johnny Honda (05:44:28) :
I hope that this discussion doesn’t turn into an ozone hole debate. The link to human activities and ozone loss is very well established. After the Montreal Protocol and subsequent revisions, there are certainly fewer CFCs that end up in the stratosphere to destroy ozone. CFCs take decades to centuries to be removed so it is no surprise that there is still a thin ozone. The latest predictions for a recovery are discussed in the link below:
http://www.nasa.gov/centers/goddard/news/topstory/2006/ozone_recovery.html
This is also the problem with greenhouse gases, esp. CO2. If you believe greenhouse gases are contributing to the modern day global warming (of course I do and most here do not) then even with mitigation the long-term residence of CO2 will still cause warming long after these remedies are in place.
@ Johnny Honda (06:09:32) :
I had assumed that Tamino’s Open Mind bloge was well known here. In my opinion, he has the best blog out there when it comes to actually analyzing data. For example, he smashed the article from McLean, de Freitas and Carter that claimed to show how ENSO might be causing the trend in global warming. See:
http://tamino.wordpress.com/2009/07/24/old-news/
http://tamino.wordpress.com/2009/08/04/influence-of-the-southern-oscillation-on-tropospheric-temperature/
After Tamino’s rebuttal of this journal article, many others showed the same problems with the concluding comments about NSO and trends. The bottom line is this is how science works. Papers get published, experts look at the claims and the data, and either accept it or rebut it. Talk is cheap when it is not supported by data nor discussed in the peer-reviewed literature.
I would be very careful if you intend to tap Tamino’s bees nest. You will likely be coming to a gun fight armed with a knife.

September 11, 2009 7:41 am

The politicians haven’t got the balls for it! The green votes/taxes are too much!

RR Kampen
September 11, 2009 7:43 am

Dell Hunt, Michigan (07:36:10) :
“And after one of the coldest winters and coolest summers here in Michigan this past year, global warming is bound to be missed.”
Michigan warming has held up for half a year, would be the correct assertion.
Michigan, or even the US, is not the globe.
As depicted here, http://data.giss.nasa.gov/work/gistemp/NMAPS/tmp_GHCN_GISS_HR2SST_1200km_Anom0603_2009_2009_1951_1980/GHCN_GISS_HR2SST_1200km_Anom0603_2009_2009_1951_1980.gif , Holland had a warm summer – the 9th in a row – as had most of the Northern Hemisphere (by contrast, most of the Southern Hemisphere had a mild winter). I’m the wittness for Holland.

Mr. Alex
September 11, 2009 7:44 am

*sigh*… Flanagan and his thermageddon…
Who cares if 2009 is still hotter than 18xy? Temperatures can still be currently decreasing. Think about it, when you get to the top of the hill and go past the peak (in temp example: 1998), you start going down the hill.
Initially you are STILL near the top, even though you are now cooling (going down); i.e. 2009 is only a mere 11 years down the slope, we are still on top but not going any higher.
It seems as though the experts got it flat wrong with SC 24.
The critical latitude of 22 degrees was reached and we got one spot.
It is absolutely amazing that just 5 years ago sunspot activity was touted as the highest in 1000 years and today it is weak and not a single person knows exactly what’s next.

September 11, 2009 7:47 am

dorlomin (07:05:19) :
The earth is warmer than it should be due to its atmospehre, a phenominem known as the greenhouse effect.

Yep, atmosphere being the key word.
However, the atmosphere is composed of nitrogen and oxygen mainly, which heat us after being heated by the surface being heated by the sun.
Temperature on other planets depends on received Sun energy and their atmospheric pressure, not depending what the atmosphere is composed of. Earth is in line with other planets.
Heat capacity of the atmosphere is misinterpreted as “greenhouse effect”, that is the root problem of all that climatological computer model alchemy.
Has the water vapor/CO2 itself been responsible for (wrongly calculated) +33K, deserts should be much colder than tropics and Arctic should experience strongest warming as their atmosphere is dry; neither is true.

Mark
September 11, 2009 7:53 am

William: “The net effect of man changing the globe is that we are changing climate directly and by what we pump into the air. The changes may not be the catastrophe’s the IPCC predicts but don’t doubt for a minute that they are ocurring.”
Yep, mankind has an impact on his environment! Get over it! The question is whether CO2 emissions represent a crisis that must be dealt with at immense cost (and most likely to little effect!)

September 11, 2009 7:55 am

It must be annoying for Svensmark if their mechanism – which is almost certainly one of the most important insights of climatology in decades – is being largely ignored because of a paranoid politicized cult that prefers the explanations with a big potential to influence politics over the explanations that are supported by the objective evidence.
Nice article.

Gene Nemetz
September 11, 2009 7:58 am

“Indeed, [you could say] that the clouds on Earth originated in space.”
Unusual concept to the average mind I think.

Gene Nemetz
September 11, 2009 7:59 am

Mike McMillan (03:34:03) : The CO2 chart climb is as steady as you get, but the global temperature it’s supposed to be driving seem pretty oblivious to it….About the only things keeping pace with CO2 are the GISS adjustments.
Nice way to put it.

Ron de Haan
September 11, 2009 8:00 am

Fred Lightfoot (02:44:03) :
Fred, thanks for your great posting.
I enjoyed the read very much.

September 11, 2009 8:01 am

Scott A. Mandia (07:39:41) :
I hope that this discussion doesn’t turn into an ozone hole debate. The link to human activities and ozone loss is very well established. After the Montreal Protocol and subsequent revisions, there are certainly fewer CFCs that end up in the stratosphere to destroy ozone. CFCs take decades to centuries to be removed so it is no surprise that there is still a thin ozone.

I am not so sure.. the AGW come just in time to cover the ozone scientific blamage:
http://www.junkscience.com/sep07/Chemists_poke_holes_in_ozone_theory.htm
http://www.nature.com/news/2007/070924/full/449382a.html
This is also the problem with greenhouse gases, esp. CO2. If you believe greenhouse gases are contributing to the modern day global warming (of course I do and most here do not) then even with mitigation the long-term residence of CO2 will still cause warming long after these remedies are in place.
I see it is a belief. I believe its effect is indistinguishable from natural effects.
Btw, recent study suggested the “long-time residence” of CO2 is close to 10-15 years.

JamesG
September 11, 2009 8:03 am

Blimey the mainstream scientists have moved on to consider natural variation as important but their drones are still endlessly repeating the old excuses.
Oh sure, Gavin Schmidt hind-cast aerosol cooling with his model. In fact he had guessed a reason for the cooling because the CO2-causes-everything hypothesis couldn’t explain it, then he manipulated the input parameters on the model until they matched the 20th century. A remarkably easy thing to do is hind-casting when you have so many flexible parameters because you know exactly what to aim for. However a hindcast is not a prediction and never will be. Neither does it show any skill. Anyone who suggests a model hind-cast shows skill should get out of the computer modeling business.
Of course all that was before the discovery of the sea temperature bucket adjustment farce by Jones (some time after McIntyre) which made such a curve-fitting exercise look really silly. And it was also before Swanson explained on realclimate.org that the dip was more than likely from natural variation.
Mind you, it must be difficult to keep up with all these contradictory handwaves that climate scientists just keep pulling out of their rear end but you should try to keep up to date.

Gene Nemetz
September 11, 2009 8:04 am

Mark Fawcett (04:22:26) : Just recovered from passing out whilst reading the following on the BBC:
But they had to have this hackneyed statement in the article, their rallying call :
The survey, by Cardiff University, shows there is still some way to go before the public’s perception matches that of their elected leaders.
I wonder if even they are tired of it all.

Ron de Haan
September 11, 2009 8:05 am

Patrick Davis (06:23:39) :
“Ron de Haan (06:01:30) :
Fortunately most people in the West are fed up with Government Meddling and spending. Even if people lack the knowledge or even the interest for the Climate debate, they don’t want to lose their freedom.”
If that were true why do these “meddling and spending Govn’ts”, it appears, continually get re-elected? UK New Labour, been there 10 years now. I expect that will change simply because Bliar gave up and Brown, unelected, took over. Australian’s voted for KRudd747 because of the involvement in the Irag/Afgahnistan wars, lead by Bush, supported by Howard (and Bliar). Unfortunately, in Australia, too many people “support” AGW. That’s the second biggest reason why KRudd747 won.
Patrick,
I can not speak for the Brits, but the latest EU parliament election has been devastating for the left.
The upcoming elections in the Netherlands will wipe the current ruling parties of the map.
Believe me, people are fed up and the genie is out of the bottle.

Gene Nemetz
September 11, 2009 8:06 am

Chris Schoneveld (04:24:49) :
It appears the theory is moving on without Lief.

Ron de Haan
September 11, 2009 8:09 am

Nogw (07:13:24) :
Ron de Haan (06:01:30) :
“If this hoax is stopped however, it has to be stopped in the USA
…waiting cavalry…but if it doesn’t appears, then what?”
In that case I will come to Agentina and we start a smuggling operation importing cheap gasoline from Venezuela.

September 11, 2009 8:10 am

Anthony, I can translate the piece if you’d like. My address is rikard at the trygghetsvakten dot se domain.

David Corcoran
September 11, 2009 8:15 am

Flanagan (02:43:48) :
– When a forbush decrease takes place, the water content of some clouds changes by 7% corresponding to a 10%-20% decrease of cosmic ray counts
– after a few days, the water content comes back to normal levels
again, there’s no proof that cosmic rays substantially influence the composition of clouds over long periods of times, especially as compared to other parameters like the ocean average temperature. If you prefer, this is weather, not climate.

Svensmark has demonstrated a link, you admit the link, but dismiss it as just weather. Isn’t climate a collection of weather?
Flanagan (05:54:34) :
Well Leif, I made exactly the same comment as you concerning the absence of trend since the 50ies. But only one comment out of two gets published (at least in my case).

I’m given to understand that weather is rather complex and hard to predict. How can ANYONE who purports to be reasonably intelligent assume that any single mechanism discussed must be the primary, sole driver of weather & climate, with all other factors fading to insignificance? That would be absolutely idiotic. Svensmark has discussed GCRs as a climate factor, He has not claimed that it’s an overwhelming driver.
But you know who makes that sort of claim all of the time? The good folks at Real Climate. They attribute everything to CO2, and dismiss any other influence on global climate as minuscule in comparison. Every day of the week and twice on Tuesday. Yet Hansen’s predictions from 30 years ago were way too high, so were the ones from 20 years ago. And the ones 10 years ago? Even worse. Considering the trillions that stopping CO2 production will cost, isn’t it reasonable to ask that some sort of accurate 10-year prediction be demonstrated first? (or whatever time period that would be considered more than “weather”… never can get a definition from an alarmist on that).

Gene Nemetz
September 11, 2009 8:17 am

Robert (04:32:09) : Well I’m here to tell ya buddy…I’m going with the models, they’ve saved me many times before.
I went with a few models too, as girlfriends. They didn’t save me from anything. They were good to look at though—for a while. But it was like chocolate ; great at first, but you get sick of it after a while and don’t want it anymore. It just goes to show you how reliable models, climate and/or human, are.
I’m looking for low maintenance girls now.

Mark
September 11, 2009 8:17 am

“Flanagan (00:36:42) :
A very mysterious mechanism indeed. And still not supported by any observation. Moreover, how is it the sun is “fading” since the 90ies and all we got is a warming? Even 20 years later? 2009 is not going to be a cold year, far from that. August and July were globally pretty hot and September seems to be setting a new record
http://discover.itsc.uah.edu/amsutemps/amsutemps.html
check Channel 5″
Indeed, it’s called an El Nino!
http://www.cdc.noaa.gov/people/klaus.wolter/MEI/table.html
http://www.cdc.noaa.gov/people/klaus.wolter/MEI/rank.html

Bob Shapiro
September 11, 2009 8:17 am

oakgeo (00:24:32) :
“Please get it professionally translated. I think I just had a freshman flashback.”
My guess is that you mean “edited” rather than translated. The text as displayed needs only a few tweaks to make it grammatically correct. So, here’s one possible edited version; others are welcome to try reediting.
———————————–
While the Sun Sleeps
Henrik Svensmark, Professor, DTU, Copenhagen
Global Warming has stopped, and a cooling is beginning. But, no Climate Model has predicted a cooling – quite the contrary. This means that future climate is unpredictable, writes Henrik Svensmark.
Over the last few years, the Star which keeps us alive has had almost no Sunspots, which are the usual signs of the Sun’s magnetic activity.
Last week, the team behind Sohosatellitten (Solar and Heliospheric Observatory) reported that the number of sunspot-free days suggests that solar activity is heading toward its lowest level in about 100 years. Everything indicates that the Sun is moving into a hibernation-like state, and the obvious question is whether it has any significance for us on Earth.
If you ask the International Panel on Climate Change (IPCC), which represents the current consensus on climate change, the answer is a reassuring “nothing.” But, history and recent research suggests that that view probably is completely wrong. Let us take a closer look at why.
Solar activity always has varied. Around the year 1000, we had a period of very high solar activity, which coincided with the Medieval Warm Period. It was a period when frosts in May (in Copenhagen) were an almost unknown phenomenon and of great importance for a good harvest. Vikings settled in Greenland and explored the coast of North America. China’s population doubled over this period. But, after about 1300, the Earth began to get colder, and it was the beginning of the period we now call the Little Ice Age. In this cold period, all the Viking settlements in Greenland disappeared, Sweden were surprised to see Denmark freeze over in ice, and the Thames in London froze repeatedly. More serious were the long periods of crop failure, which resulted in a poorly nourished population. Because of disease and hunger, the population was reduced by about 30% in Europe.
It is important to note that the Little Ice Age was a global event. It ended in the late 19th century as an increase in solar activity began. Over the past 50 years, solar activity has been the highest since the Medieval Warm Period over 1000 years ago. And now, it appears that the Sun is heading once again toward what is called a “Grand Minimum” such as we saw during the Little Ice Age.
Some have tried to explain the correlation between solar activity and climate through the ages as a coincidence, but it turns out that, almost no matter what time period is being studied – not just the last 1000 years – that correlation is there. Solar activity over the past 10,000 years has fluctuated repeatedly between high and low, with the Sun being in “Sleep Mode” approximately 17% of the time, each episode followed by a cooling of the Earth.
One can wonder that the IPCC does not believe that the Sun’s changing activity has no effect on the climate, but the reason is that they only include changes in solar radiation.
Looking at radiation only would be the simplest way by which the Sun could change the climate – a bit like turning up and down the brightness of a light bulb.
Satelite measurements of solar radiation have shown that the variations are too small to cause climate change, but many have closed their eyes to a second, much more powerful way that the Sun is able to affect Earth’s climate. In 1996, we discovered a surprising influence of the Sun – its impact on Earth’s cloud cover. High energy accelerated particles from exploded stars, the Cosmic Radiation, are helping to form clouds.
When the Sun is active, its magnetic field shields more effectively against the cosmic rays from outer space before they reach our planet. These changes regulate the Earth’s cloud cover, which can turn the Earth’s temperature up or down. High solar activity produces fewer clouds, and the Earth gets warmer. Low solar activity gives Earth inferior shielding against cosmic rays, which results in increased cloud cover and hence a cooling. As the Sun’s magnetism has doubled in strength during the 20th century, this natural mechanism may be responsible for a large part of Global Warming during this period.
This also explains why most climate scientists are trying to ignore this possibility. They in fact favor the idea that the 20th century temperature rise is due mainly to human emissions of CO2. If the Sun has influenced a significant part of warming in the 20th century, it means that CO2’s contribution necessarily must be smaller.
Ever since our theory was put forward in 1996, it has undergone very sharp criticism, which is normal in science.
First, it was said that a link between clouds and solar activity could not be correct because no physical mechanism was known. But in 2006, after many years of work, we managed to conduct experiments at DTU Space, where we demonstrated the existence of a physical mechanism. Cosmic radiation helps to form aerosols, which are the seeds for cloud formation.
Then came the criticism that the mechanism we found in the laboratory was unable to survive in the real atmosphere, and therefore had no practical significance. But that criticism we have just emphatically rejected. It turns out that the sun itself is doing what we might call natural experiments. Giant solar flares can have the cosmic radiation on Earth dive suddenly over a few days. In the days after the eruption, cloud cover falls by about 4 per cent. And the content of liquid water in clouds (droplets) is reduced by almost 7 per cent. Indeed, you could say that the clouds on Earth originated in space.
Therefore we have looked at the sun’s magnetic activity with increasing concern, since it began to wane in the mid-1990s.
That the sun could fall asleep in a deep minimum was suggested by solar scientists at a meeting in Kiruna in Sweden two years ago. As Nigel Calder and I updated our book “The Chilling Stars” therefore, we wrote a little provocative passage, “we recommend that our friends enjoy Global Warming while it lasts.”
Indeed, Global Warming has stopped, and a cooling is beginning. Last week, it was argued by Mojib Latif from the University of Kiel at the UN World Climate Conference in Geneva that cooling may continue through the next 10 to 20 years.
His explanation was natural changes in North Atlantic circulation and not in solar activity. But no matter how it is interpreted, the natural variations in climate then penetrate more and more.
One consequence may be that the sun itself will show its importance for climate and thus test the theories of Global Warming. No climate model has predicted a cooling of the Earth – quite the contrary.
This means that projections of future climate are unpredictable. A forecast that says it may be either warmer or colder for 50 years, is not very useful, since science is not able to predict solar activity.
So in many ways, we stand at a crossroads. The near future will be extremely interesting and I think it is important to recognize that nature is completely independent of what we humans think about it. Will Greenhouse theory survive a significant cooling of the Earth? Not in its current dominant form. Unfortunately, tomorrow’s climate challenges will be quite different than greenhouse theory’s predictions, and perhaps it agin will become popular to investigate the sun’s impact on climate.
Professor Henrik Svensmark is director of the Center for Sun-Climate Research at DTU Space. His book “The Chilling Stars” has also been published in Danish as “Climate and the Cosmos” (Gads Forlag, DK ISBN 9788712043508)

tallbloke
September 11, 2009 8:20 am

Patrick Davis (07:33:36) :
“tallbloke (07:16:12) :
Leif Svalgaard:
“According to calculations by British scientists, the strength of the Sun’s magnetic field has doubled during the Twentieth Century alone.”
Those same scientists now know that the doubling didn’t happen.
Quite right Leif. They now estimate that it was a 79% increase rather than a 100% increase.”
And that is still an estimate. Estimates are like “golbal average temperatures”, they are meaningless.

Estimate was a poorly chosen word. The difficult process of gaining useful and valid information from the data is still a worthwhile effort, despite uncertainty.
Unless you are of the opinion that we should throw our hands in the air and sit down in ignorance?

Johnny Honda
September 11, 2009 8:21 am

@Scott A. Mandia
thanks for the Link. There it says:
“But the researchers show that the ozone hole has not started to shrink a lot as a result. The scientists predict the ozone hole will not start shrinking a lot until 2018. By that year, the ozone hole’s recovery will make better time.”
So my point is confirmed!
Maybe you should also read in “Nature” Vol. 449 the Article “Chemists poke a hole in ozon theory”
“I would be very careful if you intend to tap Tamino’s bees nest. You will likely be coming to a gun fight armed with a knife”
Oh, I’m so scared, I will have troubles sleeping tonight!
Everything that Tamino in his blog “Narrow Mind” does (but I didn’t read all his stuff), is using Hansen’s corrupted GISS temperature to “proof” that WUWT is wrong.
And the fact that he said once something correct, has no meaning, even a broken clock shows twice a day the correct time.

Ron de Haan
September 11, 2009 8:21 am

Robert E. Phelan (05:07:08) :
“I have no way of knowing whether Dr. Svensmark is correct about cosmic rays and clouds but he is definitely not correct about poor harvests causing a 30% decline in Europe’s population during the Little Ice Age. That phenomenon was caused by something called the Black Death”.
Robert, please read the article correctly:
Quote:
“But more serious was the long periods of crop failure, which resulted in a poorly nourished population, because of disease and hunger population was reduced] by about 30 per cent in Europe”.
Because of disease and hunger the article states.
About cosmic rays, look at the graph posted by Harold Ambler:
Harold Ambler (05:22:10) :
http://cosmicrays.oulu.fi/webform/query.cgi?startdate=1964/08/11&starttime=00:00&enddate=2009/09/11&endtime=15:35&resolution=Automatic%20choice&picture=on

David in Davis
September 11, 2009 8:21 am

Fred Lightfoot (02:44:03) :
You really should write a memoir, not to prove that weather is local, just to share your experiences of ~50 years of adventure in the oil biz. Sounds like you have quite an interesting tale to tell to us armchair adventurers and probably many astute observations of how things really work in parts of the world that most of us are so isolated from. Get at it! (please)

September 11, 2009 8:26 am

@ Ron de Haan (07:28:52) :
Next time I will write “sarcasm” in quotes next to a comment so that it is well understood to be just that.
I have certainly not read all of your posts on WUWT, but are you this concerned for the welfare of the world’s population if in fact, as most experts suggest, AGW is occurring? If you are truly the humanist you claim to be then you should be concerned either way.
I know this comment doesn’t really add to the discussion but sometimes a guy just has to defend himself. I think it should be clear by now that the reason I post here (and on many other blogs) is because I am very concerned about our future and am willing to take the potshots in order to reach a few folks who I believe are being misled.

Ron de Haan
September 11, 2009 8:35 am

RR Kampen (07:38:28) :
“Indeed, global warming stopped and a cooling is beginning. No climate model has predicted a cooling of the Earth, on the contrary. This means that projections of future climate is unpredictable, writes Henrik Svensmark.”
So clever. Future climate is unpredictable but Svensmark knows ‘a cooling is beginning’ 🙂
RR Kampen,
I do not understand why you make this rather patronizing remark but
if you make a quote, please quote all the remarks made by Svensmark about the cooling, the climate models and the sun.
Because now you are placing his remarks out of the context.
I would be careful with that, especially because this is not a scientific report but as Anthony stated at the beginning of the article:
“Translation is from Google translation with some post translation cleanup of jumbled words or phrases by myself. In cases were the words were badly jumbled or didn’t quite make sense I inserted [my interpretation in brackets]”.

Sandy
September 11, 2009 8:36 am

“I would be very careful if you intend to tap Tamino’s bees nest. You will likely be coming to a gun fight armed with a knife.”
All that Tamino cites as peer-reviewed sources are peer-reviewed by the same old cronies chasing all the political funding they can get.
Ultimately this coming NH winter will end Global Warming once and for all, ask the fjord ponies.

Gene Nemetz
September 11, 2009 8:37 am

Mark (04:45:49) :
simplified drawing of the theory from your link :
http://www.sciencebits.com/files/pictures/climate/crcFig2.jpg
Something I think some don’t realize is that the cosmic ray level is not a constant. It varies, higher and lower. So just watching the sun to evaluate how much of cosmic rays are getting into the earths atmosphere and seeding clouds isn’t enough. You have to factor in cosmic ray levels.
And good luck trying to get a perfect handle on that!
The fact still remains that cosmic rays form aerosols–“the rest are details”.

Niels A Nielsen
September 11, 2009 8:44 am

Scott A. Mandia (07:39:41) : “I would be very careful if you intend to tap Tamino’s bees nest. You will likely be coming to a gun fight armed with a knife”.
What do you think happens at the ‘Open Mind’ when it suddenly turns out that Tamino is the guy waving a knife against a visitors gun? A fellow blogger, Lucia Liljegren, was recently banned from posting at his blog because she pointed out a problem in one of Taminos analyses…
Tamino: “Lucia appears to have the skill to figure this out. But rather than do the work, she prefers to come here and plant that idiotic “violates the 2nd law of thermodynamics” meme that we’ve all heard a thousand times from more denialist idiots than the planet has room for. She’s a petulant child, one who won’t be commenting here again.]”
http://tamino.wordpress.com/2009/08/17/not-computer-models/
She did the work at her blog and it of turned out that Lucias questions were more than justified. Tamino obviously sensed his defeat and banned her from posting rather than adress her relevant questions. Go to Lucias blog and search posts tagged ‘Tamino’. The case is an eye opener to an open mind.

George E. Smith
September 11, 2009 8:49 am

“”” Tenuc (00:47:50) :
If only the climate of earth were so simple that major changes depended just on one factor. Unfortunately this simplistic view is wrong, and our chaotic climate depends on multiple interlinked mechanisms to keep it within the bounds of a few degrees of temperature variability we usually see.
The Svensmark theory may well be correct, but like CO2 caused AGW, I’m sure it will not turn out to be the sole mechanism. However, with Copenhagen around trhe corner, it’s good to see some publicity which shows the CO2 theory is very weak and perhaps help stop global Cap & Trade being adopted. “””
I don’t think anyone; including Dr Svensmark has ever suggested that his theory is a complete explanation of “climate change”.
Does the term “natural variability” mean anything to anyone ?
Svensmark’s cosmic ray thesis, is simply one component of “natural variability”; that is all he is saying.
And Frank Wentz (RSS) et al “How Much More Rain will Global Warming Bring ?” SCIENCE July-7-2007 pretty much points to the negative feedback control loop that depends solely on the physical properties of H2O; and that is what holds earth’s temperature range in a comfortable range, that is NOT controllable by humans.
So sad that basic problem solving logic skills aren’t taught in school any more.
George

Stephen Wilde
September 11, 2009 8:52 am

Stephen Wilde (23:48:17) :
When the Sun goes quiet, we here on Earth experience more of the effects of Galactic influence, which is never quite totally overriden by the Sun.
The solar modulation is only a few percent, and the Galactic influence does not vary on a time scale of centuries or faster”
Leif,
That was not my comment. It was from rbateman.
I agree with you about the sun on shorter time scales and only disagree on century or multi century time scales.

Ron de Haan
September 11, 2009 8:53 am

Luboš Motl (07:55:34) :
“It must be annoying for Svensmark if their mechanism – which is almost certainly one of the most important insights of climatology in decades – is being largely ignored because of a paranoid politicized cult that prefers the explanations with a big potential to influence politics over the explanations that are supported by the objective evidence.
Nice article”.
Thanks Luboš, I could not agree more.

RR Kampen
September 11, 2009 8:53 am

Re: Gene Nemetz (07:59:31) :
Mike McMillan (03:34:03) : “The CO2 chart climb is as steady as you get, but the global temperature it’s supposed to be driving seem pretty oblivious to it….About the only things keeping pace with CO2 are the GISS adjustments.”
“Nice way to put it.”

Disagree. The rise in [CO2] is not the only thing driving global temperature. It is only by far the most important. But there is no reason to believe the rise should be strictly linear. Just as there is no reason to believe that year-to-year temperature variability was always zero before 1900.
If CO2-levels were at those of 1900, 2007 and maybe 2008 should have become close to the coldest on record: deep solar minimum + powerful La Niña + two volcanoes. Instead they made it to the top 10% warmest. Stronger evidence for GW is hard to get by.

wws
September 11, 2009 8:56 am

I hadn’t ever wasted time on Tamino’s blog before, so I looked at it. Funny, he seems to have dedicated almost every post to complaining about WUWT. The number of views and traffic here must be driving him crazy.
I have a feeling he took the fall of the “Green Jobs Czar” pretty hard.
REPLY: Actually what is going on is that he’s acting out his anger over his inability to do something about the thorough falsification that he’s been getting by Lucia over his two box model. Since he can’t refute her conclusions about his failure and his violating the second law of thermodynamics, he attacks what he considers to be an easy target to prop up his ego. His pattern is quite predictable. He did the same thing with the Ian Jolife incident, and when McIntyre took him to task here and here. He couldn’t refute either of those so he let loose a barrage of angry posts about me and WUWT readers. He calls Lucia a petulant child, but can’t come to grips with the facts of the situation. While he does make some valid points, his approach is totally angry and antisocial. I find his posts amusing and yet sad. – Anthony

Phil's Dad
September 11, 2009 8:59 am

Graeme Rodaughan (23:47:21) says “Refreshing. Now if only the Politicians were paying attention…”
We are Graeme.
Coupled with solar wind effects, iris effect, basic irradiance and cosmic ray interference it starts to add up to a meaningful and repeated if unpredictable influence. Ocean currents may effect only short-term patterns (i.e. 1-100 years) but still have to get that heat from somewhere. Volcanic activities cause pinpricks in the record. Other factors, including man’s activities could just be generating further noise. Since even the range of sensitivities of any of these is unknown, projection is futile.
UK Sceptic (01:05:16) repeats the often heard “…the UK’s politicians are as dumb as rocks when it comes to science…”
We know, that’s why we are paying attention.
Incidentally, I was disappointed that “The survey also found that: 39% thought leading experts still questioned the causes of climate change”. It is a fact that some of them do. Why do 61% not believe an easily demonstrable fact?
Mick (01:46:48) “Folks, all this science is OK, but I’m afraid it’s irrelevant…Unfortunately the ignorant public has a mob mentality, the loudest megaphone wins…”
Half right Mick. Science by itself will not win the argument although making the public less ignorant is eventually the solution.
This is a facts verses hyperbole war rather than a religious one. (You cannot actually disprove a pure religion – and why would you want to?)
Just keep making sure the facts are heard.
To Fred Lightfoot (02:44:03)
Sir, with all that you have said I respectfully agree. Time for change.
(Unless you will accept silk as milk from butterflies – OK I’m pushing it)
While we are on butterflies – the butterfly effect (see how I did that) means that all of us effect the climate every time we step on a blade of grass, eat a morsel or take a breath. Everyone in this country and on every nation on earth. Including those who are not talking to us at the moment. That – times about 7billion – is what we need to “control” to moderate anthropological effects. While we are waiting for that to happen – prepare for the worst (either way) and live with it.
(PS Moths – I know)

RR Kampen
September 11, 2009 8:59 am

Ron de Haan (08:35:58) :
“RR Kampen,
“Because now you are placing his remarks out of the context.”
Knowing some of his writings, I doubt that.
“I would be careful with that, especially because this is not a scientific report…”
Okay, you may be right; but then my remark is not for Svensmark but for the quote I took.
As for the translation, no worries. I can read Danish and the translation of the quote I took is correct.

September 11, 2009 9:03 am

Scott A. Mandia (07:39:41) should really get some sort of prize for packing so much misinformation into his posts. For example:

“If you believe greenhouse gases are contributing to the modern day global warming (of course I do and most here do not) then even with mitigation the long-term residence of CO2 will still cause warming long after these remedies are in place.”

May I deconstruct? Thank you:
I can’t recall anyone here taking the position that greenhouse gases have no effect. But by attempting to re-frame the argument that way, Mandia tries to corner skeptics. That doesn’t work here, as he is finding out.
The real question is, how little effect does CO2 have [and keep in mind that the alarmist contingent has hung their hats on CO2 as the trigger for runaway global warming; rarely do we hear from them about other GHG’s like H2O, etc.] The climate’s sensitivity to CO2 is much lower than the UN/IPCC/alarmist crowd admits. The planet is clearly telling us that CO2 is an insignificant player in global temperatures. So who should we listen to? Scott Mandia? Or Planet Earth? I prefer to listen to the one with no agenda.
And: ‘modern day global warming’?? What is that supposed to mean?? What Mandia is trying to do with that sentence is convey the false impression that natural climate variability has ended, and global warming caused by CO2 has taken over. Wrong. It’s all natural variability, just as it was when CO2 was twenty times higher than it is now.
Next, ‘long term residence of CO2’ has been pretty well falsified, despite some frantic alarmist attempts to prop up the claims of 200+ year persistence. Again: Wrong. Studies of carbon isotopes from the South Pacific nuclear tests have shown a very short CO2 persistence. Physicist Freeman Dyson has written on this, and gives a CO2 residency time of about twelve years. Since CO2 persistence in the atmosphere is so short, there can be no hidden “heat in the pipeline” from it. So who to believe, Prof Freeman Dyson? Or Scott Mandia? That’s an easy one, isn’t it?
And constantly referring to the truly disreputable “Tamino” is just an appeal to a fake authority. Why is Tamino so filled with jealousy, hatred and bile toward WUWT? Simple: because Tamino didn’t even make the semi-finals in the Weblog Awards: click. He’s way down on the Wikio list, too [WUWT is #2]. And that other government-run, censoring echo chamber, realclimate, got only one-tenth the votes of WUWT. Those alarmist sites failed for one simple reason: the truth is not in them, and people know it.
I had to laugh at Mandia’s impotent barking: “…be very careful if you intend to tap Tamino’s bees nest. You will likely be coming to a gun fight armed with a knife.” Tamino is a despicable worm, who avidly reads this site every day, consumed by envy and hatred. He sits in his echo chamber cave, waiting to pounce on anyone’s post that doesn’t kiss up to him with unwarranted flattery. Like most alarmist sites, Tamino heavily censors all but the most pro-AGW, adulation filled posts. [Contrast Tamino’s constant commenting about WUWT on his site, with the lack of concern seen here. The subject of Tamino comes up rarely, like Mandia’s reference to Tamino today. Otherwise, nobody pays attention to Tamino, and that galls him no end.]
Mr. Mandia’s misplaced worship of “Tamino” is not arguable, since it is only his opinion. But it should be pointed out that Mandia gets to post here as often as he likes — while numerous posters here have commented over the years that their polite, well-meaning, science oriented posts were deleted by Tamino simply because they didn’t track the Party line, or butt kiss him sufficiently. Mandia has picked a pretty insecure HE-RO to worship.
Have I tapped Tamino’s beehive hard enough with those statements? Should I be worried about Tamino’s response?
Nah. He’s a wuss.

George E. Smith
September 11, 2009 9:07 am

“”” Juraj V. (07:47:14) :
dorlomin (07:05:19) :
The earth is warmer than it should be due to its atmospehre, a phenominem known as the greenhouse effect. “””
That is an absurd statement.
The earth is exactly as warm as it should be; and it stays exactly as warm as it should be 60 seconds per minute, 60 minutes per hour, 24 hours per day, 365 1/4 days per year, and year in and year out for the last 4.5 or so billion years; it has never deviated from being as warm as it should be.
That man in his idiocy continues to think it should not be as warm as it is, is where the whole problem lies.
George

Chris Schoneveld
September 11, 2009 9:08 am

Fred Lightfoot (02:44:03):
You must have been an ex-Shell colleague of mine.
Your telling stories will be construed by the alarmists as a proof that climate change is playing havoc with our fragile world.

September 11, 2009 9:10 am

Hello all!!
I have been in hiatas from the wuwt wourld, but I should add, I was recently speaking to a class of high school algorites,and brought this webpage up on the big screen.
(I was brought in as the counter debate to global warming)
It was like shooting fish in a barrel.
The group was comprised of some very promising young minds, and were at once stupified by the powerful arguments for intelligent debate.. and FACTS!! that are here to be found.
by the debates end.. the teacher and organizer literally cursed me(sigh, i dare say I might have provoked it) but the majority of the kids were listening.
I left to the sounds of intense debate of the FACTS, and was delighted that it was entirely do to the posts here, and they no longer thought the science was decided.
To all that post the amazing articles here, and the sharp minds that comment on them, I say well done.

MattN
September 11, 2009 9:19 am

In 5 years, it will be obvious to anyone with a brain that AGW-theory is dead. I expect Gore, Hansen and possibly Mann to be the lone holdouts. (Just wait!!! It’ll be back as soon as this Ice Age is over!!!)

Ron de Haan
September 11, 2009 9:25 am

Scott A. Mandia (08:26:35) :
“@ Ron de Haan (07:28:52) :
Next time I will write “sarcasm” in quotes next to a comment so that it is well understood to be just that.
I have certainly not read all of your posts on WUWT, but are you this concerned for the welfare of the world’s population if in fact, as most experts suggest, AGW is occurring? If you are truly the humanist you claim to be then you should be concerned either way.
I know this comment doesn’t really add to the discussion but sometimes a guy just has to defend himself. I think it should be clear by now that the reason I post here (and on many other blogs) is because I am very concerned about our future and am willing to take the potshots in order to reach a few folks who I believe are being misled”.
Scot,
Well Scott,
I have read your spin postings and now you are doing it again.
You truly master the verbal skills to a level that would make a second hand car sales man blush from envy.
Don’t waste your AGW Consensus mantra and your “humanist” act on me you shameless AH.
If you’re real objective is to warn people who you believe are misled and need your protection, you are wasting your time on this blog.

Barry Foster
September 11, 2009 9:27 am

Dorlomin. I have no time for error bars – they are too wide. If we cannot say with ANY certainty what the temperature will be then why bother? As a layman, I find such error bars a nonsense, and didn’t realise until a while ago that science worked on such things. I take your point that the current flatline/cooling might be a “idiocyncratic movement”, then again it might not be!
Yes we understand that the Earth is warmer than it would otherwise be without its Greenhouse Gases, but we do not know what will happen when we increase one – and one that is very minor to water vapour. We don’t know if we’ll have a positive effect (as the science says) or whether, for example, we’ll have increased cloud cover leading to cooling. Like I said, we appear to have checks and balances within the climate system that we do not understand.
I must be a ‘real sceptic’ then – according to your criteria, because although I’m not really a sceptic of CO2 forcing, I am a sceptic of what will result. We don’t understand what happens within the climate system, and we’re only just realising what part ocean currents may have played in recent warming – more learning then!
Scepticism SHOULD be easy and natural for a scientist, but it would appear that many scientists are taking correlation as causation, and worse – starting out with a pre-conceived notion, and then trying to prove it correct. Surely, this is not science? In the past week we had a scientist (a scientist!) saying “Maybe the Earth is trying to tell us something”. Lovelock’s bizarre comments in the past have left me breathless, but this?
I think we will one day fully understand how the climate system works, but I believe that day to be decades into the future – seriously. If you remove the ’98 El Nino there has been no statistically-significant warming since 1995. That’s a long time, Dorlomin! What we’re experiencing is nothing unusual at all – nor unprecedented. But returning to my original point, we really have no idea, and we should stop making out we do. I see no warming to be worried about at all (certainly not here in England!) and a decadel rate of 0.12 within the troposphere isn’t going to keep me awake at nights. At some point the Warmists are going to have to re-evaluate their convictions, and start back-peddling. We’ve seen this week some saying we’re in for 20 years of cooling before man-made warming returns! Oh dear! Some just don’t get it, do they? Cooling is natural – warming is man-made. Has science come to this?

MattN
September 11, 2009 9:34 am

“If AGW is not a concern and we are heading for a new ice age we can rest?”
This statement alone makes me want to reach through my monitor and strangle someone. Rest? Are you kidding me? How about we get to work on how to feed 7+billion people as the planet cools, once farmable land becomes too cold to grow anything, and crops begin to fail worldwide? How about we divert the trillions of $$$ spent on AGW research to that?
Life would be quite a bit more pleasant if the warming would continue…..

Barry Foster
September 11, 2009 9:35 am

On the Tamino point, I commented there, and found his attitude, shall we say ‘odd’. I certainly wouldn’t be comfortable in his presence. It’s okay to get annoyed, but it’s quite another to brow-beat someone with angry, childish ranting. Ungentlemanly.

September 11, 2009 9:36 am

Flanagan wrote:
A very mysterious mechanism indeed. And still not supported by any observation. Moreover, how is it the sun is “fading” since the 90ies and all we got is a warming? Even 20 years later? 2009 is not going to be a cold year, far from that. August and July were globally pretty hot and September seems to be setting a new record
http://discover.itsc.uah.edu/amsutemps/amsutemps.html
check Channel 5

Very cool site. I check a number of the gaphs, not only comparing Sept 2008 to Sept 2009, but all the years from 1998 to this year. Even though it looks like Sept will be hotter than last year, it’s still very middle of the road compared to the bulk of Septembers past.
——————————————————————–
Scott, please keep posting here. Even though we are maybe on opposite sides on this issue, I have noted you are always very civil in your comments. We need more of that.
We are all concerned with the well being of the human race. We just happen to view the perceived threat of global warming and solutions to the perceived problem as disingenuous, politically motivated, and in the end, more detrimental to humanity than if we did nothing and let it happen, if it’s really happening at all. Most here believe that recourses would be better served on projects that fix levees here in California or provide potable water to Africa (I applaud Sting and the Police for donating to that cause instead of global warming).
In a philosophical sense, AWG walks hand in hand with the notion that we live on a fragile planet that is destine to be destroyed by us. It’s the “delicate balance” vs the “rough and tumble” philosophy of the nature of life on the planet. I favor the rough and tumble POV in lieu of the Gaia orthodoxy, a remnant of the 60’s hippie movement. As I always say, the only thing worse than a hippie, is a hippie with a college degree!!! (just kidding)
Have to go work now.
Mike

Ron de Haan
September 11, 2009 9:40 am

Smokey (09:03:01) :
Thanks Smokey,
You have done a better job than me.

tallbloke
September 11, 2009 9:41 am

Phil’s Dad (08:59:07) :
the butterfly effect (see how I did that) means that all of us effect the climate every time we step on a blade of grass, eat a morsel or take a breath. Everyone in this country and on every nation on earth. Including those who are not talking to us at the moment. That – times about 7billion – is what we need to “control” to moderate anthropological effects. While we are waiting for that to happen – prepare for the worst (either way) and live with it.

I won’t be accepting ‘control’ from politicians anytime soon, especially when I see they don’t ‘control’ themselves. Human beings, whatever their numbers, are a natural part of the Earth scene, and attempting to ‘control’ their taking breaths or their steppings on blades of grass on the back of a dud theory is asking for an ass kicking.

Phil's Dad
September 11, 2009 9:44 am

johng (07:41:32) says “The politicians haven’t got the balls for it! The green votes/taxes are too much!”
I accept the cowardly label – I use a pseudonym here because even being seen to consider “skeptical” views can affect my job as a European politician with an environment brief. I hope I will not lose too much respect from you for that – I am trying to spread common sense from inside the bunker.
Nevertheless if it is “green votes” that we are chasing than educating the masses is still the solution, which is why this site is so valuable. The green vote comes from green voters, not politicians.
That’s why I think the BBC statement highlighted by Gene Nemetz (08:04:59) so odd.
“The survey, by Cardiff University, shows there is still some way to go before the public’s perception matches that of their elected leaders.”
Political fact of life 1) Leaders are elected to represent / serve the public. Their “perception” can therefore only lag that of the public. Hopefully, not by too much.

September 11, 2009 9:45 am

I have to agree with Fred Lightfoot above, in a career spanning 36 years on the Emergency Services in South Africa and in the UK, I have witnessed “1,000 year floods” at 5 year intervals in one location, 100 year storms at three and four year intervals in another. Weather doesn’conform to “modelling” and any “model” is as good as the data fed into it. As a “Fire Engineer” my experience with models is that they are, at best, indicators, and at worst outright garbage. Very few are available (without the use of a super computer) capable of running the extremely complex interactions necessary to get an accurate result for a complex building, so they model one room at a time and extrapolate the results to give a snapshot. Change one parameter, or mistype one small piece of data and the model is slewed dramatically. If that result is then used to feed into other models …..
And as for “smoothed” data – it gives a “smoothed” result which may or may not be a reflection of reality. The AGW and IPCC campaign is about getting hands into research wallets – and far to many politicians haven’t the courage to admit they have been “blinded by science” and by the propaganda campaigns run by Fiends of the Earth and Greenstrife on behalf of their friends who feed them with the image they want to present.
It is refreshing to see this sort of article is available – even in a bad translation!

Gary Hladik
September 11, 2009 9:50 am

Fred Lightfoot (02:44:03), thanks for your comment. I come to this site, in part, for down-to-earth stories like yours. The last paragraph seems like a good candidate for Quote of the Week.

Vincent
September 11, 2009 9:50 am

Ron :
“If you’re real objective is to warn people who you believe are misled and need your protection, you are wasting your time on this blog.”
So true. Most people I imagine are fed up with such misuse of the science and pointing to propaganda websites as “evidence”. People are fed up with hand waving statements such as “I see the evidence in AGW” without bothering to even say what this might be. Ignorance is excusable, but pompous ignorance is just annoying.

The Diatribe Guy
September 11, 2009 9:53 am

My only issue is the claim that “no climate model has predicted global cooling.”
This may be true of the climate models put together by “experts” or the ones that get press, but a simple bloke such as myself has offered a best-fit adjusted sine wave (and double sine-wave) against the HadCrut data and showed that this basic model projects that we have recently hit the warming peak and are now going to cool for the next 20 years or so.
Does it take a gazillion different mechanisms and crunch them on supercomputer? No. It’s a recursive analysis that uses less than a half-dozen parameters and takes a mere few minutes to crunch away on an excel spreadsheet.
And if i had to bet on my results versus the models showing runaway warming, I’d bet on the sine-wave fit.
But these kinds of analyses are just too simple for academia to take them seriously.
In my career as an actuary, I’ve never been burned yet by trying to simplify the complex in making my projections. I have, however, been burned trying to add complexity in an attempt to improve accuraccy.

TJA
September 11, 2009 9:54 am

Flanagan,
When you close your mind to logic, you lose power to persuade. Read it several times and think about what is wrong with the following statement logically in terms of the climate and space weather as a whole. I can’t make you see it.
“again, there’s no proof that cosmic rays substantially influence the composition of clouds over long periods of times,” – Flanagan

Johnny Honda
September 11, 2009 9:55 am

The more I read on Tamino’s blog “feeble mind” (sorry for more publicity for this), the more I question his physical knowledge:
“Global temperature responds to changes in the energy flow of earth’s climate system. When more energy flows through the system the planet heats up; with less energy flow the planet cools down
Changes in the energy flow constitute climate forcings. We know of many, including greenhouse gases, solar changes, ozone, snow albedo, land use, aerosols (both from volcanoes and from industrial processes), etc.
By adding greenhouse gases to the atmosphere more energy flows through the system?? The energy flow through the system is not changed by greenhouse gases. There is a diagram on Wikipedia with the energy flows through the atmosphere, there everybody can see, that the greenhouse effect doesn’t change the energy flow at all.

Phil's Dad
September 11, 2009 9:55 am

tallbloke (09:41:12) says “I won’t be accepting ‘control’ from politicians anytime soon, especially when I see they don’t ‘control’ themselves. Human beings, whatever their numbers, are a natural part of the Earth scene, and attempting to ‘control’ their taking breaths or their steppings on blades of grass on the back of a dud theory is asking for an ass kicking”
You make my point for me. What some have set out to control just doesn’t want to be controlled.
A different plan for the future is required. (Suggestions on a post card…)

Stephen Wilde
September 11, 2009 10:02 am

“Phil’s Dad (08:59:07) :
the butterfly effect (see how I did that) means that all of us effect the climate every time we step on a blade of grass, eat a morsel or take a breath. Everyone in this country and on every nation on earth. Including those who are not talking to us at the moment. That – times about 7billion – is what we need to “control” to moderate anthropological effects. While we are waiting for that to happen – prepare for the worst (either way) and live with it.”
Crikey,that’s a far more alarmist position than that of even the most enthusiastic CO2 acolyte !!!
No wonder politicians of that ilk leap upon alarmist theory as a godsend to help with a far more aggressive and concealed agenda.
Not content with limiting our CO2 emissions this politician thinks the world is so sensitive to the presence of humanity that we are looking over a precipice to destruction with every breath.
Where did these guys come from ?
They don’t represent anyone I’ve ever met in daily life yet they got elected somehow.
If the real problem is population, pollution and resource depletion (and it is) then let them be honest about it and not hide behind the irrelevance of CO2 emissions.

Chuck near Houston
September 11, 2009 10:03 am

Smokey – “Have I tapped Tamino’s beehive hard enough with those statements? Should I be worried about Tamino’s response? Nah. He’s a wuss.”
Nice response to Mandia re: Tamino. But I think I’d like to add just one thing: If one refers to someone they disagree with as a “petulant child” – well then doesn’t that say all you really need to know? I mean, who talks like that (aside from the Burns character in the Simpsons)?

September 11, 2009 10:03 am

RR Kampen (08:53:46):
“The rise in [CO2] is not the only thing driving global temperature. It is only by far the most important.”
Mr Kampen goes on to say that we would all be freezing if not for increased CO2. But that doesn’t logically follow at all.
It is an example of an argumentum ad ignorantiam: the fallacy of assuming something is true simply because it hasn’t been proven false. In this case, it is a baseless assumption — unless you take the UN/IPCC’s sensitivity number as being real. But the UN’s number has been consistently wrong, as even they admit in each new assessment report. It is illogical to take it as a fact that CO2 forcing is the biggest cause of global warming. What about the Sun? And the oceans? Does a minor trace gas trump their effects?
Every subsequent IPCC Assessment Report has ratcheted down their assumed climate sensitivity number. But as of AR-4, their number is still way too high. You don’t have to believe me; the planet herself is telling us that.
CO2 has been well over ten times higher than it is now, for hundreds of millions of years at a time. During much of that time temperatures were the same as today, and sometimes lower.
Carbon dioxide may have a minuscule effect on temperature, but that tiny effect is overwhelmed by other effects. If that were not the case, there would be some proven correlation between CO2 increases and temperature increases. But as we know, CO2 rises after temperature rises. That wouldn’t happen if CO2 was causing global warming.

Power Grab
September 11, 2009 10:06 am

@ George E. Smith (08:49:21)
“…So sad that basic problem solving logic skills aren’t taught in school any more.”
OT, but I wanted to encourage you…my child is taking “advanced studies” in junior high and they are spending a lot of time this semester learning to use logic. I have seen 2 or 3 “matrix logic” assignments that quite impressed me.

Chris Schoneveld
September 11, 2009 10:11 am

Smokey (09:03:01),
Brilliant!

P Wilson
September 11, 2009 10:12 am

To Scott Mandia:
there is a little test of whether there is a heat print detectable in the atmosphere at night. When thermal imaging cameras are used to detect persons, it shows them as packets of light, in human form of course. Anything that doesn’t emit radiation doesn’t show up,. The re-radiation of heat from earth is exceedingly small. This is the re-radiation that we are told is captured by c02. What is captured is a nearly non-existent pool of heat, and by no means all of that heat. just a small fraction of it. Climatically, its pretty irelevant. There may be acase for cloud cover keeping in heat at night and keeping temperatures cooler in the day. In physics, the radiation re-emitted by a body is determined by its temperature only, so normal temperature objects, don’t give off radiation (which is why the print doesn’t show up on thermal imaging cameras).
It would be a different matter if the earth, like us, could radiate low level heat for co2 to trap. At present it doesn’t. Even if c02 were the all powerful forcing that its made out to be, there’s precious little heat for it to trap

Martin Mason
September 11, 2009 10:14 am

Mandia, I for one would prefer that you took your patronising attitude on to one of the AGW echo chamber sites like Open Mind and Real Climate where it’ll be appreciated far more than it is by me at least. We have the ability on here to think. If you want to convince us that AGW is real please explain why in the past we have had CO2 levels far in excess of todays without runaway warming, why we have had cooling for long periods last century and again now when CO2 has risen apace, why there is no tropical mid tropospheric hot spot and why Antarctica isn’t warming. How about why the AGW religion has developed only on the back of predictions from models that have the predictive capabilities of astrology and on theoretical CO2 forcings that are patently not replicated in the real world that some of us live in. The AGW house of cards is falling down and maybe your real reason for coming here is to reposition yourself for this and to be seen to be on the sensible side of the debate? Please, start educating us on why we have got it so wrong.

P Wilson
September 11, 2009 10:15 am

addendum: ie. the 2nd law of thermodynamics

Johnny Honda
September 11, 2009 10:20 am

Did you know that our little friend Scott Mandia is a denier of the Medival Warming Period? He seems to like little jokes, isn’t he a funny guy.

Editor
September 11, 2009 10:22 am

Ron de Haan (08:21:37) :
Ron, I’m usually in agreement with you, but don’t try splitting hairs with me on this one. The Black Death had nothing to do with poor harvests or the Little Ice Age. Europe’s population was not reduced gradually by worsening harvests and debilitating diseases, but rather 40% died in a span of less than five years from a vicious disease. In killing it made no distinction between the well-fed and the starving. If Dr. Svensmark wants to prophecy doom, he needs to find more accurate examples. In 1347 Europe’s population was approximately 75 million. By 1351 it was 40 million. By 1400 it was 45 million

Mr. Alex
September 11, 2009 10:25 am

Scott A. Mandia (07:39:41)
“You will likely be coming to a gun fight armed with a knife.”
perhaps a sharpened hockey stick will suffice instead…

Editor
September 11, 2009 10:26 am

got to be careful which buttons I click on…. to finish this rant… by 1500, in a mere century, the population nearly doubled to about 80 million. This is NOT the picture Dr. Svensmark paints, so don’t insist that because he mentioned disease he was accurate…. sheesh, Ron, you’re picking up some of Flanagan’s bad habits.

Stephen Wilde
September 11, 2009 10:28 am

Tamino says:
“Global temperature responds to changes in the energy flow of earth’s climate system. When more energy flows through the system the planet heats up; with less energy flow the planet cools down.”
Now if we were to amend that to read ‘changes in the RATE of energy flow” Tamino would be mighty close to my analysis but then he would have to consider two new parameters namely:
A varying rate of energy flow from ocean to air
and
A varying rate of energy flow from surface to space.
Then he would have to compare the change in rate of flow effected by a little more CO2 with the natural changes in rate of flow created within the oceans and within the air.
He would see that the CO2 effect is truly miniscule in comparison to the natural changes in rate of flow.
Finally he would have to consider whether a change in the rate of flow limited to the air alone could possibly have any effect on the rate of flow coming naturally from the oceans and he would have to accept that it cannot because air cannot heat water due to the process of evaporation which ensures that any attempt of air to heat water just increases evaporation which is a net cooling process.
I won’t hold my breatrh.

September 11, 2009 10:32 am

@ Johnny Honda (08:21:17) :
Everything that Tamino in his blog “Narrow Mind” does (but I didn’t read all his stuff), is using Hansen’s corrupted GISS temperature to “proof” that WUWT is wrong.
Lucy’s post showing Arctic temperature plots includes this statement about the data: All data comes from NASA GISS or CRU originally.
So do we use GISS or not?
@ Sandy (08:36:31) :
You state: All that Tamino cites as peer-reviewed sources are peer-reviewed by the same old cronies…
You could certainly accuse ME of doing that but not true for Tamino. Tamino is brilliant at analyzing and interpreting data. As an example, see his analysis of arctic warming that appears to starkly contrast Lucy Skywalker’s assertions about no warming trend.
http://tamino.wordpress.com/2009/09/11/arctic-analysis/
Yes, Tamino does not mince words but his data analyses are hard to ignore and he justn’t just talk the talk – he walks the walk. Regarding the civility of his comments, I think Tamino’s words are certainly nicer than a few regular posters here.
@ sonicfrog (09:36:38) :
Thanks. Most comments to me here have been fairly civil. It is appreciated and much more constructive than emotional outbursts.

Phil.
September 11, 2009 10:37 am

John Silver (03:23:22) :
“Svenskerne overraskede Danmark med at gå over isen”
should not be translated to:
“Swedes [were surprised to see Denmark to freeze over in ice]”
It is this thing that he refer to:
http://en.wikipedia.org/wiki/March_across_the_Belts
Typical of the LIA.

Hardly typical since your cite refers to it being the “coldest winter in living memory”, and had it been typical perhaps the Danes wouldn’t have been taken by surprise?

Phil's Dad
September 11, 2009 10:40 am

Stephen Wilde (10:02:13) jumps to a conclusion which I am perhaps guilty of leading him to.
He says “Not content with limiting our CO2 emissions this politician thinks the world is so sensitive to the presence of humanity that we are looking over a precipice to destruction with every breath.”
I do believe that everything we do has consequences but I do not for one minute think that they need to be destructive.
The point I was trying rather back-handedly to make is that it is unrealistic to think that we can control enough climate forcing parameters to pin-point a desirable world temperature and enforce it.
Just controlling mankind is impossible over any meaningful timescale – let alone the other factors which may well be more relevant.
My position is nearer to your later statement “If the real problem is population, pollution and resource depletion (and it is) then let them be honest about it and not hide behind the irrelevance of CO2 emissions.”
To be clear; I do not think the policies currently in place or being proposed have any realistic chance of controlling world temperatures. Nor am I sure it would be desirable even if they were. Far better to be prepared to adapt to what actually happens.

Michael T
September 11, 2009 10:44 am

@ Barry Foster (05:59:33) :
Well said, Barry.
As a mere geologist, I have learned a heck of a lot recently about climate and weather, mainly by following WUWT. There has been an awful lot to learn and much of it rather difficult physics (for me). I have moved from being a sceptic to being a ‘coolist’ to being an ‘I’m really not too sureist’ – in fact, I believe that most of us here might say that the more we’ve learned the less we know about the complex relationships that exist between the various potential drivers of climate except for one thing – IT AIN’T CO2. Get used to it, Al!

fred wisse
September 11, 2009 10:48 am

thank you very much mr fred lightfoot
Your description of reality is really the essence of the climate-discussion ,are we humans capable of changing the world that we are living in ? Are we so powerful that we are able to change the circumstances given by the cosmic order or how else you wish to describe this phenomenon ?
I do believe the agw-crowd has fallen prey to the temptation to be able to control the power of mother nature or any other description of forces that are well beyond our control ! It is comparable to childish dream to be the centre of the universe and to be the master of your fate or fortune . In essence everything we possess was once given to us and can always be taken from us . life is a gift and the climate we are living is also a gift and to declare ourselves so important that we are creating our own climate is an insult , where humbleness and gratefulness should be more approriate.
In life everybody is kept more or less accountable for his deeds , why shall the agf-crowd not be kept accountable for their actions to curb the private life of so many of their fellow-men ?
I know that what i am saying is not completely applied science , but i do believe that the real climate discussion is neither applied science and i thank you alexander for your efforts to bring it back on track !
Some day you will succeed .
Good luck

Michael Hove
September 11, 2009 10:53 am

SOHO-23: Understanding a Peculiar Solar Minimum.
http://www.soho23.org/
The SOHO Science Working Team has scheduled the twenty third in the series of successful SOHO workshops to focus on the topic of the unusual minimum of solar activity that has persisted in 2007, 2008 and 2009. SOHO-23 is scheduled for 21-25 September 2009, at the Asticou Inn in Northeast Harbor, Maine.
Is anyone that posts to this blog going to this conference? I am very interested in a summary of the presentations.

September 11, 2009 10:58 am

Fred Lightfoot: Thank you for your observations. Your experience with the water gap and 100 year waves made me laugh. I suspect it might say more about research and engineering standards than climate though.
As a Kiwi, this reference may not mean much to you, but I think Jerry Jones has the same problem with Cowboy Stadium.

dorlomin
September 11, 2009 11:03 am

Barry Foster (09:27:24) :
Dorlomin. I have no time for error bars – they are too wide. If we cannot say with ANY certainty what the temperature will be then why bother? As a layman, I find such error bars a nonsense, and didn’t realise until a while ago that science worked on such things
—————————
Words fail me. Do you really have such a limited grasp over the basics of studying physical systems.

dorlomin
September 11, 2009 11:11 am

Martin Mason (10:14:31) :
Mandia, I for one would prefer that you took your patronising attitude on to one of the AGW echo chamber sites like Open Mind and Real Climate where it’ll be appreciated far more than it is by me at least. We have the ability on here to think
————————————
So you thin you are not an echo chamber? And you think that you are so much more gifted than many of the worlds most famous scientists?
Listen mate, the history of science is chock a bloc full of controvosies where very intellegent people looking at the same evidence came to different conclusions. Try out of africa vs multiregional evolution or wave vs particle in classic physics, big bang vs steady state or the host of alternative models in physics at the moment.
The people on the wrong side of those debates were not stupid, following religous cults or falsifying evidence for grant money.
They were sincere, hard working and often brilliant. Just like the people who won the debates.
“If you want to convince us that AGW is real please explain why in the past we have had CO2 levels far in excess of todays without runaway warming,” Try the lifecycle of stars, they get hotter as they get older.

gtrip
September 11, 2009 11:17 am

All this talk about Tamino, is that a singular named person like Cher or Madonna? Who exactly is he/she as I don’t see any information on the Open Mind site.

dorlomin
September 11, 2009 11:20 am

fred wisse (10:48:01) :
thank you very much mr fred lightfoot
Your description of reality is really the essence of the climate-discussion ,are we humans capable of changing the world that we are living in ? Are we so powerful that we are able to change the circumstances given by the cosmic order or how else you wish to describe this phenomenon
————————————
The Ozone hole goes a long way to suggest we are.
———————————–
I do believe the agw-crowd has fallen prey to the temptation to be able to control the power of mother nature or any other description of forces that are well beyond our control !
———————————–
Not control, affect. CO2 is uncontroversial in its role as a greenhouse gas. Adding it to the atmosphere will have an effect. The debate is how much and if it is really enough to be concerned about.
And the real debate for humans is whether the effect will have an impact on agriculture, if so then we have a problem if not then the skeptics like Lomborg suggest we have more pressing problems to engage with. Here in lies the debate.

Philip Foster
September 11, 2009 11:20 am

Here is a slightly more tidied up version – Philip Foster
From the http://www.wattsupwiththat.com website
This opinion piece from Professor Henrik Svensmark was published September 9th in the Danish newspaper Jyllands-Posten. Translation is from Google translation with some post translation cleanup of jumbled words or phrases by myself. In cases were the words were badly jumbled or didn’t quite make sense I inserted [my interpretation in brackets]. Hat tip to Carsten Arnholm of Norway for bringing this to my attention. – Anthony Watts.
While the sun sleeps
HENRIK SVENSMARK,
Professor, Danish National Space Centre, Copenhagen
Indeed, global warming stopped and a cooling is beginning. No climate model has predicted a cooling of the Earth, on the contrary. This means that projections of future climate are unpredictable, writes Henrik Svensmark.
The star which keeps us alive has, over the last few years, had almost no sunspots – which are the usual signs of the sun’s magnetic activity.
Last week, the scientific team behind the Soho satellite (Solar and Heliospheric Observatory) reported that the number of sunspot-free days suggest that solar activity is heading towards its lowest level in about 100 years. Everything indicates that the Sun is moving into a hibernation-like state, and the obvious question is whether it has any significance for us on Earth.
If you ask the Intergovernmental Panel on Climate Change (IPCC), representing the current consensus on climate change, the answer is a reassuring ‘none’. But history and recent research suggests that the IPCC is probably completely wrong. Let us take a closer look at why.
Solar activity has always varied. Around the year 1000, we had a period of very high solar activity, which coincided with the medieval warm period. It was a period when frosts in May was an almost unknown phenomenon and of great importance for good harvests. Vikings settled in Greenland and explored the coast of North America. For example, China’s population doubled over this period. But after about 1300, the earth began to get colder and it was the beginning of the period we now call the Little Ice Age. In this cold period all the Viking settlements in Greenland disappeared. Swedes [were surprised to see Denmark covered in ice], and the Thames in London froze repeatedly. But more serious were the long periods of crop failure, which resulted in a poorly nourished population. Because of disease and hunger [the population was reduced] by about 30 per cent in Europe.
It is important to note that the Little Ice Age was a global event. It ended in the late 19th century and was followed by an increase in solar activity. Over the past 50 years solar activity has been at its highest since the medieval warm period 1,000 years ago. And now it appears that the sun is heading towards what is called ‘a grand minimum’ such as we saw in the Little Ice Age.
The correlation between solar activity and climate through the ages has tried to be explained away as coincidence. But it turns out that almost no matter what time period is studied, not just the last 1000 years, there is a correlation: Solar activity has repeatedly over the past 10,000 years has fluctuated between high and low. Actually, the sun over the past 10,000 years spent approx. 17 percent of the time in a sleep mode, with a cooling of the Earth following.
One can wonder why the IPCC believes that the changing activity of the sun has no effect on the climate, but the reason is that they only consider changes in solar radiation.
Just radiation would be the simplest way by which the sun could change the climate. A bit like turning up and down the brightness of a light bulb.
Satellite measurements of solar radiation have shown that the variations are too small to cause climate change, but the IPCC has closed its eyes to a second, much more powerful way, the sun is able to affect earth’s climate. In 1996 we discovered a surprising influence of the sun: its impact on earth’s cloud cover. High energy accelerated particles of exploded stars, the cosmic radiation, are helping to form clouds.
When the Sun is active its magnetic field shields the earth better against the cosmic rays from outer space before they reach our planet, and by regulating the Earth’s cloud cover the sun can turn up or down the temperature. High solar activity produce fewer clouds and the earth gets warmer. Low solar activity reduces the shielding against cosmic radiation, and this results in increased cloud cover and hence a cooling. As the sun’s magnetism has doubled its strength during the 20th century, this natural mechanism may be responsible for a large part of global warming during this period.
This also explains why most climate scientists are trying to ignore this possibility. They in fact favour the idea that the 20th century temperature rise is mainly due to human emissions of CO2. If the sun has influenced a significant part of warming in the 20 century, it means that CO2’s contribution must necessarily be smaller.
Ever since our theory was put forward in 1996, it has received a very strong criticism, which is normal in science.
First it was said that a link between clouds and solar activity could not be correct because no physical mechanism was known. But in 2006, after many years of work, we managed to conduct experiments at the Danish National Space Centre, where we demonstrated the existence of a physical mechanism. The cosmic radiation helps to form aerosols, which are the seeds for cloud formation.
Then came the criticism that the mechanism we found in the laboratory was unable to survive in the real atmosphere and therefore had no practical significance. But this criticism we have just emphatically refuted. It turns out that the sun itself is doing what we might call ‘natural experiments’. Giant solar flares can cause the cosmic radiation on earth to decrease suddenly over a few days. In the days after the eruption cloud cover falls by about 4 per cent. And the content of liquid water in clouds (droplets) is reduced by almost 7 per cent. Indeed, [you could say] that the clouds on Earth originated in space.
Therefore we have been looking at the sun’s magnetic activity with increasing concern since it began to wane in the mid-1990s.
That the sun could fall asleep in a deep minimum was suggested by [solar scientists] at a meeting in Kiruna in Sweden two years ago. As Nigel Calder and I updated our book “The Chilling Stars” therefore, we wrote a little provocative comment, “we recommend our friends to enjoy global warming while it lasts.”
Indeed, global warming stopped and a cooling is beginning. Last week, it was argued by Mojib Latif from the University of Kiel at the UN World Climate Conference in Geneva that cooling may continue through the next 10 to 20 years.
His explanation was natural changes in North Atlantic circulation and not in solar activity. But no matter how it is interpreted, the natural variations in climate then penetrates more and more.
One consequence may be that the sun itself will show its importance for climate and thus test the theories of global warming. No climate model has predicted a cooling of the Earth, on the contrary.
This means that projections of future climate are unpredictable. A forecast [that] says it may be warmer or colder for 50 years is not very useful, for science is not able to predict solar activity.
So in many ways we stand at a crossroads. The near future will be extremely interesting and I think it is important to recognize that nature is completely independent of what we humans think about it. Will the Greenhouse theory survive a significant cooling of the Earth? Not in its current dominant form. Unfortunately, tomorrow’s climate challenges will be quite different from the greenhouse theory’s predictions, and perhaps it will again become popular to investigate the sun’s impact on climate.
Professor Henrik Svensmark is director of the Center for Sun-Climate Research at the Danish National Space Centre Space.
His book “The Chilling Stars” has also been published in Danish as “Climate and the Cosmos” (Gads Forlag, DK ISBN 9788712043508)

Nogw
September 11, 2009 11:31 am

dorlomin (11:20:02) : Fill one bottle to the top of CO2, close it. Then fill another with water, close it. Then heat them both with a infrared lamp during 30 minutes, then let them cool for five minutes. Check the temperatures. See?
THEY have cheated you, and you will feel it in your wallet very, very soon.

rbateman
September 11, 2009 11:36 am

Leif Svalgaard (05:20:47) :
No specific trend has been stated. That was yours to discover.
As for cherry picking, the exploration of possibilities does require a starting point. Else we cease to explore.
Fair treatment assigns probabilites to the rise, continuance or fall of a vector.
Cherry picking is a biased conclusion trap, but so is the avoidance of exploration. In both cases, new learning is stifled.

September 11, 2009 11:46 am

Michael Hove (10:53:33) :
SOHO-23: Understanding a Peculiar Solar Minimum.
Is anyone that posts to this blog going to this conference? I am very interested in a summary of the presentations.

Yes, I’m giving an invited talk. Go to the link you provided http://www.soho23.org/ and click on ‘Scientific Program’

Sandy
September 11, 2009 11:48 am

Scott
“You could certainly accuse ME of doing that but not true for Tamino. Tamino is brilliant at analyzing and interpreting data. As an example, see his analysis of arctic warming that appears to starkly contrast Lucy Skywalker’s assertions about no warming trend.
http://tamino.wordpress.com/2009/09/11/arctic-analysis/

Very pretty work by Tamino using the massaged Giss data. That Tamino’s graphs are so different from Lucy’s which are unadulterated show you just how important it is that the raw data is manipulated by venerable scientists.

September 11, 2009 11:49 am

“As a Kiwi, this reference may not mean much to you, but I think Jerry Jones has the same problem with Cowboy Stadium.”
Are you referring to their summer training-field “tent” that collapsed?
To Phil’s Dad: You’ve got my vote if you run in Texas (and you can come out of the AGW closet).

September 11, 2009 11:50 am

rbateman (11:36:55) :
No specific trend has been stated. That was yours to discover.
Then you lost me. I don’t know what you meant. Perhaps I’m too ‘literal’ and don’t follow flowery generalities too good.

Mr. Alex
September 11, 2009 11:52 am

dorlomin (11:11:14) :
“Try the lifecycle of stars, they get hotter as they get older.”
So you are implying that the much higher CO₂ levels in the distant past kept the Earth warm enough to support diversifiation and explosion of life & prevented the Earth from perhaps freezing over, which would otherwise have happened due to the cooler sun which could not provide enough energy to prevent snowball Earth from occurring?
Try this; CO₂, unlike the sun, does not radiate energy which can heat the Earth, sorry “mate”.
“Smokey (09:03:01) ” – Respect!

Richard M
September 11, 2009 11:52 am

Flanagan (02:43:48) :
“I’m sorry but, 1st, this op-ed does not cite an evidence – it just states them without any reference whatsoever. Moreover, in every study by Svensmark, including the last ones, the author somewhat “forgets to mention” the absence of trend in solar radiation and other indicators between the 50ies and the 90ies – strangely corresponding to a rapid average warming. This is apparent in the link Anthony gave me to the WUWT post:
– When a forbush decrease takes place, the water content of some clouds changes by 7% corresponding to a 10%-20% decrease of cosmic ray counts
– after a few days, the water content comes back to normal levels
again, there’s no proof that cosmic rays substantially influence the composition of clouds over long periods of times, especially as compared to other parameters like the ocean average temperature. If you prefer, this is weather, not climate.”
Now you’re getting it. This is exactly how folks should view anything related to climate. It’s nice to see Flanagan using skepticism. Now, if he was only smart enough to utilize this techinique on AGW.

September 11, 2009 11:53 am

Chris Schoneveld (04:24:49) :
Unfortunately, there is not even the slightest indication that there is a correlation between cloudiness and global temperatures, as far as I am aware of.

Let me share some graphs from climate4you webpage:
http://www.climate4you.com/images/TotalCloudCoverVersusGlobalSurfaceAirTemperature.gif
http://www.climate4you.com/images/LowCloudCoverVersusGlobalSurfaceAirTemperature.gif
http://www.climate4you.com/images/HadCRUT3%20and%20TropicalCloudCoverISCCP.gif
Even a correlation between global temperatures (let alone cloudiness) and solar activity has always been refuted by Leif.
Even a greenhorn like me knows, that period of regular freezing of northern Adriatic, Thames and even sea between Sweden and Denmark occurred coincidentally with Sun minimum; on the other side, MWP or last 60 years overlays with series of strong sun cycles, like Modern minimum which is ending now.
To refute distant MWP is old trick, but to refute also relatively recent and well recorded LIA is plain laughable.

September 11, 2009 11:54 am

Stephen Wilde (08:52:08) :
I agree with you about the sun on shorter time scales and only disagree on century or multi century time scales.
My comment was about the solar modulation of cosmic rays, not of climate. Do you disagree with the time scales of cosmic ray modulations, too?

September 11, 2009 11:56 am

Well… We can wait and see… I see no other course of action at this point in time… While I do not agree that CO2 is the main driver of climate I am not convinced that radiation from space is either. I guess in the end I am a skeptic on both theories at this point in time. I simply do not have enough information… I do agree that CO2 will warm the earth a modest amount, however I am skeptical that it is ‘runaway with feedbacks’. It may well be that cloud formation is a major component of the system as well but we just do not have enough knowledge yet to truly understand our climate system.
I know weather is not climate but still until I see us accurately be able to predict one I don’t know that I am going to believe anything about the other. The main reason is simulations RELY on trends to compute what will happen next with assumptions working on the result. If you write into a computer program that as CO2 increases then temperature increases guess what happens in the simulation as CO2 increases?
hope he is wrong… Winter is a pain, I like my food.

Nogw
September 11, 2009 11:57 am

This story of “global warming” and its main characters would make a great fiction book, such as The Da Vinci’s Code, because it involves all needed ingredients: secret societies, a church, fanatic followers….etc,etc…just imagine!
It would make, also, which is surprising, a sensational comic story…just imagine:
Super Al fighting against the deniers or Super Al against the hidden WUWT deniers’ fortress, or “The trains of Jim”, etc,etc.

David in Davis
September 11, 2009 12:09 pm

Phil’s Dad (09:55:41) :
“What some have set out to control just doesn’t want to be controlled.
A different plan for the future is required. (Suggestions on a post card…)”
Not sure if you are soliciting suggestions as to addressing blades of grass metaphor, but here is my view for what it may be worth:
The way to slow or even eventually reverse the exploding world population and it’s severe effects on the natural environment is to provide people with the means to raise themselves from poverty. It is a well know phenomenon that as the standard of living rises, the birth rate goes down. You need look no farther than Japan, an island of extremely limited resources which has provided its population with a standard of living so high that its low birth rate now threatens its ability for the young (too few) to care for the old (too many). Also true of western democracies which largely solve this problem by importing the poor from underdeveloped countries who through their high birth rate and low wages, maintain the standard of living of the citizenry.
OK smartypants, you say, how do we do that? Well, first, it’s not by having the world bank throw money at their corrupt politicians (a redundancy – no offense intended to yourself. Nor is it likely to happen by the well intentioned efforts of NGOs, missionaries, and the Peace Corps although all of those organizations certainly make a positive difference in the lives of individuals.
It is by providing or assisting them in the development of a source or sources of cheap, widely distributed, and dependable electrical power by which they can have the benefits of native industries, clean drinking water, sewage treatment plants, irrigation, and on and on.
But abundant coal reserves are polluting so we should discourage that, you say. So is their oil, and besides WE need their oil, you say. So what to do?
Well, if I had to pick just one, it would be thorium nuclear power – AKKKK!, the N word! (disclosure – I own some thorium related stock and intend to buy more). That’s dangerous to children and other living things, you say, and it will lead to terrorists having nuclear weapons. Luddite-ism, I say, based fears of 1950’s soviet reactor technology, post soviet failure to properly safeguard nuclear weapons, and a minor release of radioactive gas at TMI, also outmoded reactor technology. If you are European, you know that nuclear power is safe, clean, and protectable. No power source is completely safe, completely clean, or without adverse environment impacts, even (especially) the so-called renewables.
Why thorium? Most abundant, most anti-proliferative, high energy density, most amenable to passive safety systems, and eats the nuclear waste and decommissioned weapons grade uranium and thorium for lunch. Plus its waste is orders of magnitude shorter in half-life than Ur and Po. Non-pressueized thorium molten salt reactors, proven in concept at Oak Ridge 30 years ago, but so far undeveloped for commercial use have many potential advantages over present pressurized reactors and operate at a temperature nearly ideal for the production of hydrogen, already touted as the motor fuel of the future. Plus they can potentially be mass produced in small and medium power sizes (physical and wattage) that are ideal for locating close to where the power is needed rather than having to be distributed by long distance power lines through sensitive habitats.
Its the future (IMHO). India is already developing thorium cycle reactors.

September 11, 2009 12:10 pm

dolormin:
“So you think you are not an echo chamber?”
That’s exactly right. WUWT is not an echo chamber, it is more a peer review site than anything. Ideas are argued until the truth is sorted out when possible. Tamino, RC, climateprogress, etc., are echo chambers.
Why? Because they censor skeptical posts, no matter how polite or strictly science related. They only agree with each other, that AGW is gonna getcha. If you disagree, your post will never see the light of day. The exception is if your post is so scientifically invalid that they can have fun deconstructing it. But if you intelligently disagree, like Lucia you will be permanently barred from the site.
That’s an echo chamber. WUWT, on the other hand, allows all points of view — as your own posts prove.
Now you know the definition of an echo chamber.
Next, you say: “And the real debate for humans is whether the effect [of higher CO2] will have an impact on agriculture, if so then we have a problem…”
Entirely wrong. You have it backward. CO2 does have an effect on agriculture. A very beneficial effect. More CO2 is better. Here you go:
click1
click2
click3

September 11, 2009 12:13 pm

tallbloke (07:16:12) :
Quite right Leif. They now estimate that it was a 79% increase rather than a 100% increase.
Why do we need to go through this every time? First they said ‘doubled in the last 100 years’. When we pointed out that it didn’t: http://www.leif.org/research/Reply%20to%20Lockwood%20IDV%20Comment.pdf they changed it to ‘the first 50 years’ [because it has now come back down again]. Then they include data for the year 1901 which they have acknowledged is wrong. Then they cherry pick the lowest point and the highest point and calculate the changes using those, and finally it is quote wrong to use percentages for such a change [e.g. how many percent that the sunspot number changed between solar minimum and maximum?]. The issue was that the HMF now is just was it was 108 years ago and that there have not been any century-long change. Since we have simply plotted their data [green curve] as they generously gave us together with ours [blue curve], it is quite evident that we all agree on this: http://www.leif.org/research/Heliospheric-Magnetic-Field-Since-1900.png, so why do you always squirm over this? ‘The science is settled’ as far as this is concerned 🙂

tallbloke
September 11, 2009 12:20 pm

Phil’s Dad (09:55:41) :
tallbloke:
attempting to ‘control’ their taking breaths or their steppings on blades of grass on the back of a dud theory is asking for an ass kicking”
You make my point for me. What some have set out to control just doesn’t want to be controlled.
A different plan for the future is required. (Suggestions on a post card…)

How about the politicians concerning themselves with minimizing beurocracy and letting the rest of us get on with real life? Payment to politicians will be on the basis of the number of laws they repeal. 😉

September 11, 2009 12:23 pm

Chris Schoneveld (07:36:59) :
He won’t, as Al Gore won’t either.”
This very, very close to an ad hom. quite uncharacteristically for Leif.

I don’t know… Since when is just mentioning someone next to Al Gore an ad hom? 🙂
The point was that if you are at one pole of a very polarized issue, such debates are usually not of much use, as the pole sitter has too much tied up in his viewpoint.

Phil's Dad
September 11, 2009 12:24 pm

Tom in Texas (11:49:38) “To Phil’s Dad: You’ve got my vote if you run in Texas (and you can come out of the AGW closet).”
Believe me Tom if I were running in Texas I would long since have declared my position on AGW.
(Loved the Rangers against the Indians by the way)

Frederick Michael
September 11, 2009 12:30 pm

Flanagan (00:36:42) :
A very mysterious mechanism indeed. And still not supported by any observation. Moreover, how is it the sun is “fading” since the 90ies and all we got is a warming? Even 20 years later?

It’s 10 years since the 90’s, 20 years since the 80’s and 30 years since disco. Right?

Allan M
September 11, 2009 12:36 pm

Phil’s Dad (10:40:48) :
“Stephen Wilde (10:02:13) jumps to a conclusion which I am perhaps guilty of leading him to.
He says “Not content with limiting our CO2 emissions this politician thinks the world is so sensitive to the presence of humanity that we are looking over a precipice to destruction with every breath.”
I do believe that everything we do has consequences but I do not for one minute think that they need to be destructive.
The point I was trying rather cack-handedly to make is that it is unrealistic to think that we can control enough climate forcing parameters to pin-point a desirable world temperature and enforce it.
Just controlling man-kind is impossible over any meaningful timescale – let alone the other factors which may well be more relevant.”
So the modellers imagine they can understand the inscrutable, and the politicians (some) imagine they understand enough to control mankind. About the same level, I suspect. Perhaps we live in chaotic systems, and are chaotic systems, because there is an important function here. What makes you (or some others) imagine (the same word again) that we have the knowledge or the wisdom or the understanding or the judgement to bring about an ideal society by control? Why can’t we settle for just some administration of what is actually here?
As for too many people; can you name for me, one other species on the planet which limits its numbers and impact because of some crazy idea about its power to wreck the place? As Philip Stott said, “the planet is tough as an old boot.” If nature knows best there are exactly the right number of people on the planet doing what needs to be done. And I am fed up with tree huggers claiming an exclusive right to speak for nature because they “feel” (this does not include you, necessarily).
If you could just tell me of a eugenicist who believes themself to be from the inferior part of the race, I would be more willing to listen.
Please excuse any exaggerations; I hope they are not extrapolations.

September 11, 2009 12:43 pm

Tom in Texas: No I was referring to the big screen video displays that keep being hit by punters. I think Jerry had the same (short-sighted) engineers as Mr. Lightfoot’s oil company.
Cheers, Mark in Texas

Phil's Dad
September 11, 2009 12:44 pm

To David in Davis (12:09:02).
I agree with the spirit of what you say but I am a “p11B” man myself.

Phil's Dad
September 11, 2009 12:46 pm

tallbloke (12:20:08) :
Works for me

Ron de Haan
September 11, 2009 1:07 pm

Juraj V. (11:53:49) :
To refute distant MWP is an old trick, but to refute also relatively recent and well recorded LIA is plain laughable”.
Juaj V.,
I like what you are saying but we are missing out on the volcanic wild card.
This too played quite a role in several extreme events that took place during the LIA.

Gene Nemetz
September 11, 2009 1:08 pm

Phil’s Dad (08:59:07) :
I can see you are versed. Are you becoming the Senator Inhofe of England? He has made so good presentations to the Senate.

Barry Foster
September 11, 2009 1:12 pm

Dolormin. I’m an engineer, not a scientist, so I cannot work with the 95% error bars that scientists allow themselves http://rankexploits.com/musings/2008/ols-with-pumped-up-error-bars-is-crude-the-ipcc-2-ccentury-still-falsified/. If I did, I’d be covering myself (very well, admittedly) if someone died as a result of something I designed or constructed. Surely it’s better to say, ‘We don’t have much of a clue, really”? I live in England. Like I said before, we have the infamous Met Office. Their predictions really are dire – and wrong most of the time. Let me tell you why. They CANNOT predict what the weather will be over my city with any certainty. They know this, and I know this. So they predict it for a region around my city BUT cover themselves by saying that “Some areas may have rain” Do you see what they did there? They’re covered! If I get rain, but my sister 20 miles away doesn’t then they’re correct. If it’s the reverse, they’re correct. If we both get it, they’re still correct! Based on this pathetic level of prediction they award themselves with an 80%+ ‘predicted-correct’ tag. Like I said, I cannot afford such error bars. I couldn’t design a walkway and say ‘There’s a good chance that it won’t hold 100 people all at once, but there’s a chance it will’! I would have to say a maximum number of people. As I said, I didn’t realise that science worked with wildly varying degrees of UNcertainty. I’ll tell you something else. As an atheist I used to look down on the religious because they believe something for which there is no evidence. And here was I, a man who bases his working life on science, aloof in the knowledge that theories would be tested and conclusions drawn. When I look at the utter debacle of what passes for climate science I am appalled. They are dragging down all the other sciences with them – and I’ve read that many geologists are furious with the claims made by climatologists. They’ve seen rapid warming and cooling in rocks – completely natural. Here in England we have the Central England Temperature (CET). From 1696 to 1732 the temperature in England rose 2.2 degrees C, was wholly natural in origin, and was over twice the warming we are experiencing now. I can no longer look down on the religious. I tell you this Dolormin, if we do get a period of 20 years of cooling, then science itself will suffer. People already remember the scares of the past, like a coming ice age, acid rain, the millenium bug, bird flu, world starvation (by now), ozone depletion, and swine flu. They will start to laugh at scientists and their error bars. What good is a prediction if you build-in a huge ‘get-out’? For how much longer do you think the media will be the messengers for crackpot theories on ‘icecaps melting’? Not for long, my friend, not for long.

dorlomin
September 11, 2009 1:18 pm

Smokey (12:10:57) :
dolormin:
“So you think you are not an echo chamber?”
That’s exactly right. WUWT is not an echo chamber, it is more a peer review site than anything. Ideas are argued until the truth is sorted out when possible. Tamino, RC, climateprogress, etc., are echo chambers.
—————————————————
Please dont be so modest. You are more than that. You are the guardians of science in an age of religous fervour. An uncensorsed beacon of light saving science from the “scientists”. Give yourselves (yet) another pat on the back!

dorlomin
September 11, 2009 1:19 pm

Mr. Alex (11:52:19) :
dorlomin (11:11:14) :
“Try the lifecycle of stars, they get hotter as they get older.”
So you are implying that the much higher CO₂ levels in the distant past kept the Earth warm enough to support diversifiation and explosion of life & prevented the Earth from perhaps freezing over, which would otherwise have happened due to the cooler sun which could not provide enough energy to prevent snowball Earth from occurring?
Try this; CO₂, unlike the sun, does not radiate energy which can heat the Earth, sorry “mate”.
—————————————-
So why did it not freeze? 🙂

Gene Nemetz
September 11, 2009 1:20 pm

Mike McMillan (03:34:03) : The CO2 chart climb is as steady as you get, but the global temperature it’s supposed to be driving seem pretty oblivious to it….About the only things keeping pace with CO2 are the GISS adjustments.
Despite the hackneyed response to my earlier comment on this quote I still think it was nicely put by Mike McMillan.
i.e. :
About the only things keeping pace with CO2 are the GISS adjustments.
(bolds by me 😉)

Ron de Haan
September 11, 2009 1:25 pm

Talking about the Volcanic Wild Card:
http://volcanism.wordpress.com/2009/09/11/shiveluch-erupts/
Shiveluch erupts 11 September 2009
Posted by admin in Kamchatka, Russia, Shiveluch, activity reports, eruptions.
Tags: Kamchatka, Russia, Shiveluch, volcanic activity reports, volcanic eruptions
trackback
Reports from Russia indicate that a large eruption of Shiveluch began yesterday. A bulletin from the Kamchatka Volcanoes Emergency Response Team (KVERT), issued at 22:35 UTC on 10 September warns that ‘Ash explosions > 10 km (>32,800 ft) ASL from the volcano could affect international and low-flying aircraft’. According to the bulletin, ’strong explosions’ occurred between around 14:19 and 14:55 UTC on 10 September, with seismic data indicating ash plumes reaching 15000 metres above sea level; if ash plumes are indeed reaching 10-15 km altitude, then this is a sizeable event. The bulletin reports that according to seismic data ‘10 volcanic events (ash explosions and hot avalanches or pyroclastic flows) occurred at the lava dome from 16:33 till 20:25 UTC on September 10′. Whether the activity is still continuing is not clear, and there are no visual or satellite images of this event because of cloud cover.
End of message.

Jack Simmons
September 11, 2009 1:36 pm

Robert E. Phelan (05:07:08) :

I have no way of knowing whether Dr. Svensmark is correct about cosmic rays and clouds but he is definitely not correct about poor harvests causing a 30% decline in Europe’s population during the Little Ice Age. That phenomenon was caused by something called the Black Death, a bubonic plague spread by flea carrying rats that started in China, spread across Asia and reached Constantinople about 1346. By 1347 it had hopped a ship to Genoa and by 1351 nearly half the population of Europe was dead. European population did not reach it’s pre-plague level until just about 1500, at which point it was about just slightly larger than the population of Europe at the height of the Roman Empire.

The two are not necessarily mutually exclusive. Poor diets lead to weak immune systems as well as poor hygiene. Just read some of the accounts from POW camps run by the Japanese, Russians, and Nazis.
You are correct in bringing up the plague contributing to the die offs in Europe at the time.

jlc
September 11, 2009 1:42 pm

“This very, very close to an ad hom. quite uncharacteristically for Leif”
Not at all uncharacteristic for the smug, sanctimonious and omniscient Lief.

Barry Foster
September 11, 2009 1:49 pm

Dolormin. More divergence between models and reality – this time on ocean temperatures. http://icecap.us/images/uploads/argodata.jpg

Phil.
September 11, 2009 1:50 pm

Johnny Honda (09:55:37) :
The more I read on Tamino’s blog “feeble mind” (sorry for more publicity for this), the more I question his physical knowledge:
“Global temperature responds to changes in the energy flow of earth’s climate system. When more energy flows through the system the planet heats up; with less energy flow the planet cools down
Changes in the energy flow constitute climate forcings. We know of many, including greenhouse gases, solar changes, ozone, snow albedo, land use, aerosols (both from volcanoes and from industrial processes), etc.
By adding greenhouse gases to the atmosphere more energy flows through the system?? The energy flow through the system is not changed by greenhouse gases. There is a diagram on Wikipedia with the energy flows through the atmosphere, there everybody can see, that the greenhouse effect doesn’t change the energy flow at all.

Actually it’s your physical knowledge that’s in doubt, in the absence of greenhouse gases the earth would be ~33ºC cooler, which is a significant drop in ‘energy flow through the system’.

Jack Simmons
September 11, 2009 2:02 pm

Stefan (05:29:17) :

What the greens fail to notice however, is that authoritarian “social order” can serve any number of priorities. It can serve empire building, it can serve warmongering, it can serve any group goal, really. There is nothing inherently green about being authoritarian. And groups can also organise in far more interesting ways than simply becoming authoritarian top-down power structures.
I think the greens that follow the authoritarian model are in for a nasty shock.

North Korea is an excellent example. Not only have all businesses and consumers been brought under control, there are very few green house gases being generated. People live very simple lives there, in harmony with nature. As there is very little food, people must scour the hills looking for anything edible. Very few cars, very little electricity, no wasted resources on consumer goods. Even the military must put up with very little fuel to run jet fighters and tanks.
http://tonto.eia.doe.gov/country/country_energy_data.cfm?fips=KN
Now contrast this worker’s and environmentalist’s paradise with those profligate cousins down south:
http://tonto.eia.doe.gov/country/country_energy_data.cfm?fips=KS

RR Kampen
September 11, 2009 2:07 pm

The Diatribe Guy (09:53:44) :
“But these kinds of analyses [fitting a sine curve, RR] are just too simple for academia to take them seriously.”
In fact, for a finite number of data it is possible to fit a polynomial curve of degree [number of data] +1 that fits absolutely exactly.
Obviously projections of this model will show true runaway warming (if you chose the number of data points to be uneven).
Using powers of sine and/or cosine you can also make an exact fit. They ‘prove’ that in the long run there can be no climate change, just a repetition of waves or wave-groups – unless you take an infinite number of terms in the model (which can never be calculated, then).
I’m guessing now you can understand why academia wouldn’t want to use such simple models.
They contain no physics and therefore they cannot contain any predictive value. They contain no knowledge.

rbateman
September 11, 2009 2:07 pm

Leif Svalgaard (11:50:13) :
There is nothing flowery about looking at a section of data and asking yourself “where have I seen this slope before?”, and it is not cherry picking until one proclaims it is “This” and cannot be anything else.
The range of time/space is deliberate.
You have given me tasks just like this, but you gave it unbiased and let me draw my own conclusions.
So I am returning the favor…and not attempting to pre-color it with what I see.

September 11, 2009 2:10 pm

rbateman (14:07:38) :
“where have I seen this slope before?”,
Assuming that you
and it is not cherry picking until one proclaims it is “This” and cannot be anything else.
The range of time/space is deliberate.
You have given me tasks just like this, but you gave it unbiased and let me draw my own conclusions.
So I am returning the favor…and not attempting to pre-color it with what I see.

September 11, 2009 2:13 pm

rbateman (14:07:38) :
where have I seen this slope before?
Assuming that you are referring to cosmic rays, I have seen these curves many times before. I don’t see anything that is not what I would expect, so am still a bit lost.

E.M.Smith
Editor
September 11, 2009 2:26 pm

Flanagan (00:36:42) : A very mysterious mechanism indeed. And still not supported by any observation. Moreover, how is it the sun is “fading” since the 90ies and all we got is a warming?
Hooo HaaaHoha hik… What a hoot! And you really believe this stuff?
Flanagan, whatever you are smoking, I want some! (But only on Fridays, I need to be “straight” by the time markets open Monday…)
So, you expect a few giga-tons (tera-tons? peta-tons?) of matter to have an instant response to delta energy generation? Let me loan you a tiny bit of clue: It can take hundreds of years for LIGHT to move up a few layers in the sun. A decade or so is darned near “instant” in things that big and with that scale.
And oh, BTW, your “warming” is false as well. The books are cooked. I know, I’ve read the recipe and documented just exactly how the books are cooked. GIStemp measures ASPHALT growth at AIRPORTS as they move from Siberia to Brazil. Nothing more. (Well, maybe a little bit more, there is that one line of code that warms 1/100 of all records by 1/10C due to bad programming style – I guess it does measure “Bad Hacking” too…)
2009 is not going to be a cold year, far from that.
Too late. It already is. Hundreds of children dead in Peru from early onset snow. Crops ripening slowly in Canada and late planting from persistent snows. Argentina talking about a complete embargo of wheat exports due to cold induced crop failure (they are one of the few major exporters in the world in normal years…) Exceptional skiing started in New Zealand and Australia, the list goes on.
But no problem, you want to drink that cool-aid, fine with me. Just don’t expect the rest of us to join in. We know what’s in it, and it isn’t pretty:
http://chiefio.wordpress.com/gistemp/
August and July were globally pretty hot and September seems to be setting a new record
http://chiefio.wordpress.com/2009/09/08/gistemp-islands-in-the-sun/
Can explain why you think it is hotter “globally”. Hint: It has to do with putting a lot of thermometers on the tarmac on tropical islands during the growth of the Jet Age then using them to say that the surrounding water is the same temperature. Yes, it really does that. 2 islands ‘warm’ and area teh size of the entire U.S.A. No, boxing, gridding, anomalies et.al. can not save you from this – THIS is from the post anomaly boxing gridding step. It’s over.
Now here is a tiny little experiment for you. Go to the Marshall Islands (as in the picture in the link). Lay on the tarmac at 2 pm for an hour. Then go jump in the ocean. Which is cooler?
Don’t think this is a reasonable thing? Think the thermometer will be far far away from the tarmac? Look at the picture. There isn’t any far far away from the tarmac at that airport!

crosspatch
September 11, 2009 2:27 pm

he to-be-prime-minister Yukio Hatoyama announced at a recent press conference that he wanted to aim at 25% curbing of CO2 emission by 2020 with respect to the level in 1990. This is quite embarassing to me

I would find more embarrassing the statements of his wife that she had been abducted by aliens, take to the planet Venus and that it was “very green there”.

September 11, 2009 2:33 pm

The newest CO2 Report by Viscount Monckton just came out: click
It covers some of what’s discussed in this thread, and has some nice graphs.

Stephen Wilde
September 11, 2009 2:36 pm

Phil’s Dad (10:40:48)
Thanks for the clarification. I see your position more clearly now and don’t disagree with what you say.
However, please reduce interference instead of constantly increasing it at public expense. We really do not want all the supervision and regulation being cack handedly foisted on us.
A few hundred British officials effectively managed the Indian subcontinent for 300 years with the consent and help of most of the locals who preferred our rule of law to the previous tribal warfare.
Why do we need so many of you chaps these days with all of you with little to do except invent new obstacles for everyone else ?
Sorry for going too much off topic but if we have a politician here he needs to be told.

E.M.Smith
Editor
September 11, 2009 2:43 pm

dorlomin (01:13:20) :
“Barry Foster (01:03:31) :What the Warmists forget (whether intentionally or not) is that this flatline of temperature (or even cooling) was not predicted by models. ”
Curious, this is not what I have been told, I have always understood that natural variability can cause temporary decreases in temperature. I guess we have different sources. Perhaps you could produce a quote that states what you have said this clearly?

Different subject to the sentences…
What the AWG Believers say is it is possible to have temporary cooling. What the MODELS predict (pardon, project, like projectile v..) is rising temps. So the MODELS are bunk since they cannot predict (or project) a cooling trend. Oh, and they are fed on broken temperature series from GIStemp et.al. G. in G. out …

E.M.Smith
Editor
September 11, 2009 2:58 pm

Robert E. Phelan (05:07:08) : I have no way of knowing whether Dr. Svensmark is correct about cosmic rays and clouds but he is definitely not correct about poor harvests causing a 30% decline in Europe’s population during the Little Ice Age. That phenomenon was caused by something called the Black Death, a bubonic plague
But that plague spread, in part, due to the poor nutritional status of the population. Plague did not just evolve overnight as a new species… The outbreak of plague had causes too…

Henrik Svensmark
September 11, 2009 3:01 pm

Dear Anthony,
Nigel Calder has been so kind to translate my article. It is a good translation.
Best wishes,
Henrik
Published 9 September 2009 in Jyllands-Posten, Denmark’s best-selling newspaper.
Translation approved by Henrik Svensmark
While the Sun sleeps
Henrik Svensmark, Professor, Technical University of Denmark, Copenhagen
“In fact global warming has stopped and a cooling is beginning. No climate model has predicted a cooling of the Earth – quite the contrary. And this means that the projections of future climate are unreliable,” writes Henrik Svensmark.
The star that keeps us alive has, over the last few years, been almost free of sunspots, which are the usual signs of the Sun’s magnetic activity. Last week [4 September 2009] the scientific team behind the satellite SOHO (Solar and Heliospheric Observatory) reported, “It is likely that the current year’s number of blank days will be the longest in about 100 years.” Everything indicates that the Sun is going into some kind of hibernation, and the obvious question is what significance that has for us on Earth.
If you ask the Intergovernmental Panel on Climate Change (IPCC) which represents the current consensus on climate change, the answer is a reassuring “nothing”. But history and recent research suggest that is probably completely wrong. Why? Let’s take a closer look.
Solar activity has always varied. Around the year 1000, we had a period of very high solar activity, which coincided with the Medieval Warm Period. It was a time when frosts in May were almost unknown – a matter of great importance for a good harvest. Vikings settled in Greenland and explored the coast of North America. On the whole it was a good time. For example, China’s population doubled in this period.
But after about 1300 solar activity declined and the world began to get colder. It was the beginning of the episode we now call the Little Ice Age. In this cold time, all the Viking settlements in Greenland disappeared. Sweden surprised Denmark by marching across the ice, and in London the Thames froze repeatedly. But more serious were the long periods of crop failures, which resulted in poorly nourished populations, reduced in Europe by about 30 per cent because of disease and hunger.
It’s important to realise that the Little Ice Age was a global event. It ended in the late 19th Century and was followed by increasing solar activity. Over the past 50 years solar activity has been at its highest since the medieval warmth of 1000 years ago. But now it appears that the Sun has changed again, and is returning towards what solar scientists call a “grand minimum” such as we saw in the Little Ice Age.
The match between solar activity and climate through the ages is sometimes explained away as coincidence. Yet it turns out that, almost no matter when you look and not just in the last 1000 years, there is a link. Solar activity has repeatedly fluctuated between high and low during the past 10,000 years. In fact the Sun spent about 17 per cent of those 10,000 years in a sleeping mode, with a cooling Earth the result.
You may wonder why the international climate panel IPCC does not believe that the Sun’s changing activity affects the climate. The reason is that it considers only changes in solar radiation. That would be the simplest way for the Sun to change the climate – a bit like turning up and down the brightness of a light bulb.
Satellite measurements have shown that the variations of solar radiation are too small to explain climate change. But the panel has closed its eyes to another, much more powerful way for the Sun to affect Earth’s climate. In 1996 we discovered a surprising influence of the Sun – its impact on Earth’s cloud cover. High-energy accelerated particles coming from exploded stars, the cosmic rays, help to form clouds.
When the Sun is active, its magnetic field is better at shielding us against the cosmic rays coming from outer space, before they reach our planet. By regulating the Earth’s cloud cover, the Sun can turn the temperature up and down. High solar activity means fewer clouds and and a warmer world. Low solar activity and poorer shielding against cosmic rays result in increased cloud cover and hence a cooling. As the Sun’s magnetism doubled in strength during the 20th century, this natural mechanism may be responsible for a large part of global warming seen then.
That also explains why most climate scientists try to ignore this possibility. It does not favour their idea that the 20th century temperature rise was mainly due to human emissions of CO2. If the Sun provoked a significant part of warming in the 20th Century, then the contribution by CO2 must necessarily be smaller.
Ever since we put forward our theory in 1996, it has been subjected to very sharp criticism, which is normal in science.
First it was said that a link between clouds and solar activity could not be correct, because no physical mechanism was known. But in 2006, after many years of work, we completed experiments at DTU Space that demonstrated the existence of a physical mechanism. The cosmic rays help to form aerosols, which are the seeds for cloud formation.
Then came the criticism that the mechanism we found in the laboratory could not work in the real atmosphere, and therefore had no practical significance. We have just rejected that criticism emphatically.
It turns out that the Sun itself performs what might be called natural experiments. Giant solar eruptions can cause the cosmic ray intensity on earth to dive suddenly over a few days. In the days following an eruption, cloud cover can fall by about 4 per cent. And the amount of liquid water in cloud droplets is reduced by almost 7 per cent. Here is a very large effect – indeed so great that in popular terms the Earth’s clouds originate in space.
So we have watched the Sun’s magnetic activity with increasing concern, since it began to wane in the mid-1990s.
That the Sun might now fall asleep in a deep minimum was suggested by solar scientists at a meeting in Kiruna in Sweden two years ago. So when Nigel Calder and I updated our book The Chilling Stars, we wrote a little provocatively that “we are advising our friends to enjoy global warming while it lasts.”
In fact global warming has stopped and a cooling is beginning. Mojib Latif from the University of Kiel argued at the recent UN World Climate Conference in Geneva that the cooling may continue through the next 10 to 20 years. His explanation was a natural change in the North Atlantic circulation, not in solar activity. But no matter how you interpret them, natural variations in climate are making a comeback.
The outcome may be that the Sun itself will demonstrate its importance for climate and so challenge the theories of global warming. No climate model has predicted a cooling of the Earth – quite the contrary. And this means that the projections of future climate are unreliable. A forecast saying it may be either warmer or colder for 50 years is not very useful, and science is not yet able to predict solar activity.
So in many ways we stand at a crossroads. The near future will be extremely interesting. I think it is important to accept that Nature pays no heed to what we humans think about it. Will the greenhouse theory survive a significant cooling of the Earth? Not in its current dominant form. Unfortunately, tomorrow’s climate challenges will be quite different from the greenhouse theory’s predictions. Perhaps it will become fashionable again to investigate the Sun’s impact on our climate.
Professor Henrik Svensmark is director of the Center for Sun-Climate Research at DTU Space. His book The Chilling Stars has also been published in Danish as Klima og Kosmos Gads Forlag, DK ISBN 9788712043508)

Mike Abbott
September 11, 2009 3:02 pm

Scott A. Mandia (07:39:41) :
I would be very careful if you intend to tap Tamino’s bees nest. You will likely be coming to a gun fight armed with a knife.

Lucia from the Blackboard recently came to Tamino’s bees nest and blasted him with a bazooka. I’m referring to her apparent proof that one of his analyses violated the 2nd law of thermodynamics. She was permanently banned from his board.

David in Davis
September 11, 2009 3:10 pm

Phil’s Dad (12:44:14)
Well between us then, we’ve now solved most of the world’s problems without even leaving the room. Thanks for being a politician who seeks and considers views outside the party line. I hope you can find a way to steer your less enlightened fellows away from Luddite dogma. I’m trying to convert my friends one mind at a time, but not ready to go public either. I might find myself swinging from the UCD water tower. All praise to the Swenmarks (and Watts’, Pielkes, and McIntyres and McKittricks, et. al.) of the world be they right or wrong. A scientist’s first duty is to be skeptical; maybe it should be a layman’s and politician’s, too.

E.M.Smith
Editor
September 11, 2009 3:23 pm

Ron de Haan (06:01:30) : If this hoax is stopped however, it has to be stopped in the USA.
It won’t be. It will be stopped in Russia, China, and India.
Russia only bought into Kyoto since they got paid to play by western europe sending them ‘offset’ dollars since their industry collapsed with the USSR and they could count it is “CO2 reduction”. Copenhagen will not have that “juice” for them, and their scientists are already calling “bunk” on AGW. China is only going to do what improves the riches and power of China. THAT is blowing off AGW “mitigation” but asking for western money anyway. India is in roughly the same position, but more importantly, there is no effective way to control India; so they will ask for western money too and assert their right to continue growing as is.
The end result is that with about 1/2 the world population and about 3/4 the economic growth saying “no thanks”, the effort will collapse.
The only real question is how impoverished the west becomes as we go down the path.
The “3rd world”, Russia, et. al. have their hands out. China has the door open to industry, as does India. The money and factories will run that way until the flow dries up. Then they will politely inform us that AGW is no longer of interest to them, but would we like to buy any cars, food, coal, toys, tools? Oh, no money to buy? So sorry…
Think this is fantasy? China is busy buying resources all over the world. Trading U.S. Treasuries for future delivery of oil (200 $B to Petrobras IIRC), coal and minerals (Australian and Brazilian miners), etc. Hit the biz news, the deals are published. They have absolutely NO intention what so ever of reducing production nor energy use. Ever.
So, frankly, the USA is irrelevant and a “write off” with the UK just a bit further down the road ahead of us in the race to bankruptcy. (California is already there. We have AGW laws galore, but no jobs and industry is packing up and moving to China and Brazil… gee just like my investment money…) Mainland Europe is a bit lagging largely due to their protectionist economics, but that barrier can not stand forever. Not against China.

dorlomin
September 11, 2009 3:38 pm

E.M.Smith (14:43:52) :
What the MODELS predict (pardon, project, like projectile v..) is rising temps. So the MODELS are bunk since they cannot predict (or project) a cooling trend. Oh, and they are fed on broken temperature series from GIStemp et.al. G. in G. out …
————————-
Do they now. All of them? And your source for this statement is………
Or is it what you want to believe?

tallbloke
September 11, 2009 4:25 pm

dorlomin (15:38:22) :
E.M.Smith (14:43:52) :
What the MODELS predict (pardon, project, like projectile v..) is rising temps.
Do they now. All of them? And your source for this statement is………
Or is it what you want to believe?

Graphs?

rbateman
September 11, 2009 4:28 pm

dorlomin (15:38:22) :
Busted sensors. Seen it myself, the tech replaced the berserk sensor with another one from a failing site. Swaperoo.
Now I can tell when one of them is on the fritz: They overexpand & get stuck when it gets hot. Design flaw.
E.M. Smith is telling it like it is.

George PS
September 11, 2009 4:42 pm

Fred Lightfoot (02:44:03) :
Fred, great story. Nature has a way of humbling human hubris. I think the Sun is now pointing its big gun at us, particularly at those who are addicted to man-made global warming hysteria. Hopefully it’s just a gun, not a cannon.

ann riley
September 11, 2009 4:54 pm

Robert Phelan, would you have been happier if he had simply listed “disease” and left off the starvation? How do you know the black death hit the well fed and hungry equally? I’ve never seen any historical records that would support that. I have read that the well off resisted the black death better than the poor. Some attributed that to the silver spoon effect, but better immunity through eating might have been at work. Poor harvests are supported by the historical record, and in an agricultural society successive poor harvests are devastating. What was your purpose in picking on that detail?

Phil's Dad
September 11, 2009 4:55 pm

Stephen Wilde (14:36:10) says “Thanks for the clarification. I see your position more clearly now and don’t disagree with what you say.”
Mea culpa Mr Wilde – communication is the responsibility of the sender.
I am in favour of reducing the size of government as you (and a number of others above) have suggested. If, as a result, I am not one of those that remain then I don’t deserve to be here.
(And yes we do need to be told)

bugs
September 11, 2009 5:05 pm

So in many ways, we stand at a crossroads. The near future will be extremely interesting and I think it is important to recognize that nature is completely independent of what we humans think about it. Will Greenhouse theory survive a significant cooling of the Earth? Not in its current dominant form. Unfortunately, tomorrow’s climate challenges will be quite different than greenhouse theory’s predictions, and perhaps it becomes again popular to investigate the sun’s impact on climate.
That makes no sense. If the output of the sun reduces, then there is another forcing at work on the climate. AGW theory has never ignored other forcings, and they are incorporated in climate models. That one forcing unexpectedly increases it’s influence does in no way deny that CO2 is a significant forcing at present.

Pragmatic
September 11, 2009 5:30 pm

Having been away for awhile – it is refreshing to see there remains a foundation of sober thought on this subject. And it is expressed with courtesy in one of the leading new media publications, WUWT. That’s What’s Up.

Editor
September 11, 2009 5:55 pm

ann riley (16:54:05) :
What was your purpose in picking on that detail?
Maybe because I know something about it.

Robinson
September 11, 2009 5:57 pm

E.M. Smith wrote:

Mainland Europe is a bit lagging largely due to their protectionist economics, but that barrier can not stand forever. Not against China.

That was an interesting post Smith, although completely off-topic, if I may say so ;). I disagree however. I think China is dependent on the West (exports) as much as we are dependent on it. China has £2,000,000,000,000 in USA government bonds just for starters. That much will evapourate if the West fails economically. Rest assured that as with Japan, if the West wants China to fail, it will make it happen. The vast majorty of wealth is still in Europe and the USA and combined they can crush the Chinese economy regardless of their policy objectives. It’s advantageous to us to trade with them on current terms however, so that is why things are so.
With respect to the original post, concerning Svensmark, he is stating what is pretty obvious to us sceptics but as usual I fear he is preaching to the converted, as this website does. Where is our anti-AGW poster-boy? Where is our Al Gore? We don’t have one (I don’t think the Czech President has a high enough profile to count). It’s a shame, but that’s the way it is. Sure, the Science will win out over time, but long before it does our economies will have been changed beyond recognition.
I speak as one who only recently started to drive a car, so I feel it in my wallet now whereas I didn’t before ;). I have always been a sceptic however.

Ron de Haan
September 11, 2009 6:12 pm

bugs (17:05:29) :
“AGW theory has never ignored other forcings, and they are incorporated in climate models. That one forcing unexpectedly increases it’s influence does in no way deny that CO2 is a significant forcing at present”.
Excuse me? Have I arrived in Allice in Wonderland or am I really dreaming?

Gene Nemetz
September 11, 2009 6:24 pm

Animation of Henrik Svensmarks theory :

Editor
September 11, 2009 6:26 pm

E.M.Smith (14:58:45) :
But that plague spread, in part, due to the poor nutritional status of the population. Plague did not just evolve overnight as a new species… The outbreak of plague had causes too…
No it was not a new species. Europe experienced the same disease in the 7th Century. Back then it ws called the “Plague of Justinian”. The Black Death of the 14th century started in China nearly a quarter century before, carried by flea-infested rats, crossed Asia and ended up in Constaninople around 1346. Trading ships carried the rats and their fleas to Genoa. Within five years 40% of Europe’s population was dead. My point is that absent a particularly virulent disease vector like the Black Death, it is more likely that Europe’s population would have continued to expand as it in fact did for the century and a half after the plague. Claiming that poor harvests caused by global cooling had anything to do with the massive death toll in the 14th century is the kind of logic I expect to see over at RC. A tertiary factor, perhaps, but as I said somewhere earlier here, the plague killed the well-fed and emaciated equally well. The difference was not in caloric intake but how many rats lived with you. The well-to-do arguably had fewer rats in their living spaces, were able to more successfully segregate themselves or flee, and so survived. Boccaccio and Chaucer both lived through the plague and the Decameron and the Canterbury Tales are both set in that time period, with religious pilgrims setting off on religious quests to avoid the plague. Interesting first hand accounts of the period.
With Professor Svalgaard’s pardon, I want Dr. Svenmark to be correct. Just don’t go all algore on us.

Editor
September 11, 2009 6:41 pm

Robinson (17:57:10) :
“…if the West wants China to fail, it will make it happen. The vast majorty of wealth is still in Europe and the USA…”
Sorry, I’m with Smith on this one. Let’s take a step back. By WWII the US was probably already the largest manufacturer in the world, certainly larger than the previous title-holder, England. By the late 1960’s the United States manufactured more than 60% of everything produced in the world. Today that figure stands at 20%, while China’s share is also 20%. The difference is that the US is producing 20% of the world’s goods and an agricultural labor force of only a half percent of our population. If we wanted to expand manufacturing we would have no where to draw the labor from. Forget the 10% unemployment rate, a lot of them are people like me who swore they could never export IT jobs to Bangalore. China has more than 40% of its population still engaged in agriculture. As they mechanize agricultural production and move from peasant farming to industrial farming, that most of that 40% will be released for work in the factories. Since labor costs are nearly 60% of the cost of manufactured goods, what makes anyone think that those jobs are coming back here? The goods will flow from China to the world and the money will flow from the world to China. India is right behind them, with 60% of their labor force still engaged in agriculture. If the Chinese own our debt, how the *&^%!!! can you suggest that our economy can break theirs?

Steve S.
September 11, 2009 7:02 pm

When I think of 5 years from now I can’t imagine what those perpetrating the AGW movement will have come up with to perpetuate the farce till then.
But I am entirely certain they will indeed produce whatever it takes to maintain the AGW movement in order to preserve themselves and their careers.
I am an expert in how the left operates. I have read, listened to and watched them regularily for years. I live in Oregon where the left has taken control of every institution and arena. Their agenda is alway front and center and never recognizes any shortcomings in any way.
Only now, with the AGW movement, have they inadvertantly comitted to the irreversible path to their own doom.
Thank God for the global warming fraud.

Gary Pearse
September 11, 2009 7:22 pm

What was the term warmist use concerning political action ieven if warming ultimately turns out not to be so severe? The principle of “abundance of caution” or some such term. That is: act and if it turns out not to be a serious problem, well then …etc. etc. The illogic of this idea becomes clear when the possibility that we are destined to freeze rather than fry hasn’t been ruled out.
It would be “an abundance of foolhardiness” if we were to wipe out at least the modest share of warming that we all agree CO2 causes and along with it wipe out the wealth needed to adjust to the change and wipe out the supply of CO2 that plants may need to shoulder up to a cooling climate. The sensible solution that all reasonable non political people would choose to adopt would be to maintain the resources to be able to adjust to whatever is coming. Surely we can stick some guages on the Maldives and other sensitive low relief islands to get better probability data on future trends. Whatever is going to happen, waiting a few decades for more info is not going to hurt.
Remember it is exactly the same type of alarmist and maybe even the same persons in the 1970s that had us all freezing and starving to death by the year 2000, with India and China being the first to go. Ironically, these two countries went the opposite way and ruined the upside down hockey stick of the time. The common problem here is that linear regression arithmetic, being easy and understandable by all gets trundled out every 30 years with the opposite slope.

Paul Vaughan
September 11, 2009 7:48 pm

RR Kampen (08:53:46) “The rise in [CO2] is not the only thing driving global temperature. It is only by far the most important.”
Suggested: Read Yu.V. Barkin.

Noelene
September 11, 2009 8:04 pm

I looked up the great famine,found some good articles.
Fourthly, the Great Famine marked a clear end to an unprecedented period of population growth that had started around 1050; although some believe this had been slowing down for a few decades already, there is no doubt the Great Famine was a clear end of high population growth. Finally, the Great Famine would have consequences for future events in the 14th century such as the Black Death when an already weakened population would be struck again.
http://www.amazon.com/Great-Famine-William-Chester-Jordan/product-reviews/0691011346/ref=dp_db_cm_cr_acr_txt?ie=UTF8&showViewpoints=1

Joel Shore
September 11, 2009 8:20 pm

E.M, Smith says:

What the AWG Believers say is it is possible to have temporary cooling. What the MODELS predict (pardon, project, like projectile v..) is rising temps. So the MODELS are bunk since they cannot predict (or project) a cooling trend.

You might want to look at what the models actually predict: http://www.realclimate.org/index.php/archives/2008/05/what-the-ipcc-models-really-say/ What the models predict is that on average there will be warming. However, each individual model run shows the sort of noise that is inherent in the real climate system and thus it is not uncommon to have approximately decade-long periods with little trend or even a negative trend. What the models cannot predict is WHEN these periods will occur because the “climate noise” is chaotic and thus very sensitive to initial conditions.
(There have been a few papers recently that have tried to make decadal predictions of the climate by trying to initialize the models with the current ocean conditions…and there is some hope that this is possible because the timescales for some of the ocean processes are long enough that the divergence from perturbed initial conditions may be slow enough to allow prediction of the climate noise a decade or so into the future. However, this has yet to be convincingly demonstrated.)

Joel Shore
September 11, 2009 8:28 pm

Oh, here http://www.cdc.noaa.gov/csi/images/GRL2009_ClimateWarming.pdf is a peer-reviewed paper that has now appeared in Geophysical Research Letters that has shown again what that RealClimate post showed, which is that periods of a decade or so of negative trend are in fact not uncommon in climate models forced with greenhouse gases.
So expect that this new evidence will now greatly increase your faith in climate models?

September 11, 2009 8:48 pm

jlc (13:42:28) : “…Not at all uncharacteristic for the smug, sanctimonious and omniscient Lief.”
How did you manage to fit smug and sanctimonious into the same sentence as omniscient (all-knowing: infinitely wise), jlc?

savethesharks
September 11, 2009 9:33 pm

Joel Shore (20:28:41) : “So expect that this new evidence will now greatly increase your faith in climate models?”
NO.
Chris
Norfolk, VA, USA

Nick Yates
September 11, 2009 9:57 pm

Phil’s Dad (09:44:49) :
I accept the cowardly label – I use a pseudonym here because even being seen to consider “skeptical” views can affect my job as a European politician with an environment brief.
So much for free speech and democracy in Europe.

masonmart
September 11, 2009 10:11 pm

SPPI’s Monthly CO2 Report is now posted:
http://scienceandpublicpolicy.org/monthly_report/august_co2_report.html
No heat buildup in the oceans = no global warming:
SPPI’s authoritative Monthly CO2 Report for August 2009 announces the publication of a major paper by Professors David Douglass and Robert Knox of the Physics Department in the University of Rochester, New York, demonstrating that the heat buildup in the oceans that is a necessary fingerprint of manmade global warming is not occurring. This is another mortal blow to the alarmist cause in the climate debate. Report, page 4.
“Science should be done by observation, meditation, calculation, and verification. Politicized science cannot usefully inform political decisions.” Editorial comment: Page 3.
The IPCC assumes CO2 concentration will reach 836 ppmv by 2100, but, for almost eight years, CO2 concentration has headed straight for only 570 ppmv by 2100. This alone halves all of the IPCC’s temperature projections. Pages 5-6.
Since 1980 temperature has risen at only 2.3 °F (1.4 °C)/century, not the 7 F° (3.9 C°) the IPCC predicts. Pages 7-9.
Sea level rose just 8 inches in the 20th century, and has scarcely risen since 2006. The oceans are not warming. Pages 10-11.
Arctic sea-ice extent is currently at its summer low, but there is more summer ice than there was in 2007 or 2008. In the Antarctic, sea ice extent reached a record high in 2007. Global sea ice extent shows little trend for 30 years. Pages 12-15.
Hurricane and tropical-cyclone activity is almost at its lowest since satellite measurement began. Pages 16-17.
The Sun is still very quiet. There were no sunspots in August at all. Page 18.
The (very few) benefits and the (very large) costs of the Waxman/Markey Bill are illustrated at Pages 19-21.
Science Focus this month reprints a paper giving the reasons why the great ice sheets will not collapse. Pages 22-28.
As always, there’s our “global warming” ready reckoner, and our monthly selection of scientific papers. Pages 29-34.
And finally, a Technical Note explains how we compile our state-of-the-art CO2 and temperature graphs. Page 35.
As Roy Orbison would have said, it’s over

Phil.
September 11, 2009 10:20 pm

Ron de Haan (08:53:29) :
Luboš Motl (07:55:34) :
“It must be annoying for Svensmark if their mechanism – which is almost certainly one of the most important insights of climatology in decades – is being largely ignored because of a paranoid politicized cult that prefers the explanations with a big potential to influence politics over the explanations that are supported by the objective evidence.
Nice article”.
Thanks Luboš, I could not agree more.

Jumping the gun a little, for example why do the nuclei supposedly generated by the Forbush events take a week to build into clouds whereas those released from jet engine exhausts produce clouds in a matter of seconds? Also the cloud cover decayed away measurably in a couple of days when air travel over the US was shut down 8 years ago.

Editor
September 11, 2009 10:29 pm

Johnny Honda (00:34:23) :

I know that the sun hours per day are measured since a long time. They have this glass balls (like the fortune teller…) and behind there is a stripe of paper. When the sun shines, the light burns a hole into the stripe of paper. I saw it in the 70ies the first time but it might exists already a long time ago.

See http://www.bluehill.org/instruments/instruments.html under “Sunshine Instruments” and click on the photos to see one of these.

masonmart
September 11, 2009 10:30 pm

Dolormin, answer my questions please, none of them has anything to do with stars. they have only to do with observable characteristics of our climate in the real world and in the past. No tipping points and no positive feedbacks
Why is it that whenever the key questions on AGW are asked such as prove it, nobody not even the cleverest physicists can answer them. They see warming for 20 years and CO2 rising at the same time and that is it. Of course you have to ignore periods last century when it cooled the MWP and LIA but never mind, what is a bit of scientific fraud compared to religious beliefs.
Have a look how the AGW sirens are changing their songs now after saying that warming would be forever with a little noise, the tune is now that it can stop and reverse without falsifying the hypothesis but one day it will start again. Well of course it will and it may just do so because of natural factors. As I say many times AGW is the ultimate busted flush, how can the world now step back from the nonsensical situation that it has got itself into in the main due to wholly unelected and totally incompetent bodies like the UN, puppet scientists like its IPCC and unelected left wing eco lobby groups. A worse case of the tail wagging the dog I have never seen.

3x2
September 11, 2009 10:40 pm

Scott Mandia (10:32:20) :
Lucy’s post showing Arctic temperature plots includes this statement about the data: All data comes from NASA GISS or CRU originally.
So do we use GISS or not?

Lucy’s data is for individual stations (via GISS/GHCN/CRU). GISS also produce the infamous gridded data product. If you want “nothing to see here – move along” use individual long standing records. If you want “alarming” increases over the last fifty years then the gridded product is the way to go. It’s all about choice.

Chris Schoneveld
September 11, 2009 10:46 pm

Leif Svalgaard (12:23:50) :
“Chris Schoneveld (07:36:59) :
He won’t, as Al Gore won’t either.”
This very, very close to an ad hom. quite uncharacteristically for Leif.
I don’t know… Since when is just mentioning someone next to Al Gore an ad hom? 🙂
The point was that if you are at one pole of a very polarized issue, such debates are usually not of much use, as the pole sitter has too much tied up in his viewpoint.”
Nice Try.

September 11, 2009 10:52 pm

Harold Ambler (05:22:10) :
http://cosmicrays.oulu.fi/
As I have pointed out so many times, one must look at many stations [just as with temperature]. Showing just one [or a cherry picked bunch] is quite meaningless. Figure 1 of http://neutronm.bartol.udel.edu/reprints/2007bieber.pdf shows some more stations. Including South Pole. From the article: “[1] The count rate recorded by a neutron monitor at South Pole, Antarctica, displays a long-term decline over the 32-year span from 1965 to 1997. “.

September 11, 2009 10:53 pm

Chris Schoneveld (22:46:14) :
“The point was that if you are at one pole of a very polarized issue, such debates are usually not of much use, as the pole sitter has too much tied up in his viewpoint.”
Nice Try.

That was what I meant.

David in Davis
September 11, 2009 10:55 pm

China seems to have us right where they want us. They own most of our debt and we can’t complain too loudly about human rights, support for N. Korea, Burma (I refuse to call it Myanmar until it’s so decided by a freely and fairly elected government), the Asia brown cloud, factory fishing, etc. They now own the means of production thanks to our migration of manufacturing to their shores, and although they will continue to want to sell us stuff, their people have had a much higher savings rate, and are beginning to consumerism by their own population so they will become increasingly less dependent on us. They, of course can’t let us go bankrupt until they have sold off most of their U.S. bonds, but after that we have little leverage. More ominously, they are in the process of moving all of their gold, stored mostly in London, to a new storage facility at the Hong Kong airport. It is shaping up to be the Chinese century, and where that leaves us is anybody’s guess. Long term investment in China and the rest of Asia is rapidly becoming more attractive than investing at home. We will only penalize further our economy by initiating cap-and-trade, because China isn’t about to fall for our nonsense.

September 11, 2009 10:57 pm

Joel, on the GPL paper you referenced. WOW. Kinda small and lacking detail. I’m underwhelmed. I was expecting more.
Notice that the models used in the series presented were created around 2005. This is when the specter of the possibility of a cooling period was already entering the lexicon of the global warming debate, primarily because people were starting to notice that it wasn’t warming as expected. I would be more impressed with a model that was created during the 90’s, when the consensus was that there would be no more cooling. Also note that on the second graph there is absolutely NO cooling after 2030. Really? We are entering a period in the science of climate change where the powers that be now, finally, concede there will be long term cooling periods, yet these modelers still stick to the model that produces NO cooling trend for over seventy years? Really???????. The beauty of this is it will be 2080 or so before this particular model can possibly be verified.
Who wants to bet that by 2060 this particular model will be long forgotten and relegated to the dust bin of history as the climate will not have warmed nearly as much as this absurd prediction suggests.

September 11, 2009 11:00 pm

As always Anthony, many thanks for your blog.
In my blog I used your translation from Danish to English in addition to the original Danish text, as most of us here can read and even speak a little Danish.
I only changed “Swedes [were surprised to see Denmark to freeze over in ice],…” to “Swedes surprised the Danes by walking over the ice,…”
http://agbjarn.blog.is/blog/agbjarn/entry/946551/
Best regards, Agust
REPLY: Thanks, I made that change. – Anthony

Oliver Ramsay
September 11, 2009 11:18 pm

Robert E. Phelan (17:55:49) :
ann riley (16:54:05) :
What was your purpose in picking on that detail?
Maybe because I know something about it.
—————
That was a pretty dismissive response but it wasn’t an answer to the question.
Did you mean to say “…because I wanted to demonstrate that I know something about it.”?

rbateman
September 11, 2009 11:49 pm

Leif Svalgaard (14:13:03) :
The slope you should be recognizing is not any other cosmic ray graph, but a graph of an entirely different subject.
The clue was it starts around 1990…roughly.
Take a bunch of neutron monitor graphs extending back well before 1990.
Southern Hemisphere, Moscow, Oulu, Thule, etc.
From 1990 onwards, they all pretty much do the same general thing.
You pick one, you pick them all.
As you progress forward, there is an upper line, and a lower line. They both follow the same general slope.
What other graph have you seen that follows that same timeslice?

September 11, 2009 11:58 pm

Agust Bjarnason (23:00:19) :
I only changed “Swedes [were surprised to see Denmark to freeze over in ice],…” to “Swedes surprised the Danes by walking over the ice,…”
The Danish text says “Svenskerne overraskede Danmark med at gå over isen” and translates: “The Swedes took [the nation] Denmark by surprise by walking over the ice”. Somewhat clumsy Danish, so the translation becomes clumsy too.

September 12, 2009 12:00 am

rbateman (23:49:56) :
What other graph have you seen that follows that same timeslice?
I’m trained to not overinterprete any trend of such short duration, so I don’t see anything of significance.

3x2
September 12, 2009 12:13 am

Joel Shore (20:20:28) :
(…) What the models predict is that on average there will be warming (…)

One of my problems with climate hysteria is that if you accept the LIA (and MWP) then there can be no doubt that the “average climate” has warmed over the last couple of hundred years or we would still be in the LIA (and nobody wants to go back there). The questions concern what drives these changes.
Faced with warming, should I be worried? My view is most certainly – no. Is mankind controlling the climate? Locally? Possibly. Globally? Not a chance. We are fleas on a Dog’s back claiming some significance to the Dog turning left or right. Water, it’s abundance and it’s many wonderful properties, governs the climate here.
I noticed earlier the statement by someone that .. in the absence of greenhouse gases the earth would be ~33ºC cooler
Such statements puzzle me. The dominant “greenhouse gas” (on earth, water vapour) wouldn’t exist if we were 33C cooler – chickens, eggs. “Greenhouse gas” is there because we receive enough energy from the Sun to keep it there. If we were 33C cooler it would be called “ice” and we would be in real trouble.
I also notice of late that more are coming around to the idea that we may see some cooling soon. Looking at long term (individual) station records – yes about every 60 years. Only if you feed on “pasteurised” data products and “Hockey Sticks” could you believe that “alarming” warming started in the 50’s. You don’t need to be a realclimatescinetist to see the pattern 30 “cool” 30 “warm” or that we have reached the current plateau and are about due for the down side. Who knows, if we do see cooling for a few decades, maybe we see a new theory that CO2 causes cooling. Wouldn’t supprise me at all, the correlation will be there, rising CO2 falling temps, re-write history.
As far as I am concerned CO2 is a bit part player at best. One of many. Hopefully Svensmark here has found another in GCR’s. Who knows? We may get a coherent climate model at some point.
For the moment, as a Carbon based life form – I’m voting for Carbon.

tallbloke
September 12, 2009 12:43 am

Joel Shore (20:20:28) :
(There have been a few papers recently that have tried to make decadal predictions of the climate by trying to initialize the models with the current ocean conditions…and there is some hope that this is possible because the timescales for some of the ocean processes are long enough that the divergence from perturbed initial conditions may be slow enough to allow prediction of the climate noise a decade or so into the future.

This complex sentence merits careful study. Joel seems to be saying, if I understand him correctly, that by finally acknowledging that there are longer term oceanic cycles, the models are becoming slightly more realistic in their projections.
My question for him is this: If the negative phases of oceanic cycles are able to overcome the alleged co2 forcing for a decade or more at a time, how much of the late C20th warming attributed to co2 was actually due to the positive phases of those same oceanic cycles?
I’v asked this question many times of proponents of the AGW hypothesis, but have never recieved a reply. It’s an issue they seem to avoid like the plague. I don’t expect a properly quantified answer. An acknowledgement that at least some of the warming attributed to co2 was due to cyclic oceanic behaviour would be a start.

tallbloke
September 12, 2009 12:53 am

Agust Bjarnason (23:00:19) :
As always Anthony, many thanks for your blog.
In my blog I used your translation from Danish to English in addition to the original Danish text, as most of us here can read and even speak a little Danish.
I only changed “Swedes [were surprised to see Denmark to freeze over in ice],…” to “Swedes surprised the Danes by walking over the ice,…”
http://agbjarn.blog.is/blog/agbjarn/entry/946551/
Best regards, Agust
REPLY: Thanks, I made that change. – Anthony

A little further up the thread, Henrik Svensmark himself has endorsed another translation:
Henrik Svensmark (15:01:28) :
Dear Anthony,
Nigel Calder has been so kind to translate my article. It is a good translation.
Best wishes,
Henrik
Published 9 September 2009 in Jyllands-Posten, Denmark’s best-selling newspaper.
Translation approved by Henrik Svensmark

Perhaps it would be best to post Nigel Calder’s translation at some point, since that is the one the Author himself prefers.

Flanagan
September 12, 2009 12:58 am

EM Smith: you know, you could be funny if you weren’t so obviously biased. The global temperature for 2009 so far, as calculated by satellites, is largely above the 1998-2008 average and much hotter than 2008. With the September we’re having it’s not going to be less hot!
Please do not come citing how cold it was in the winter in some places. India and China had sizzling temperatures, the summer in Europe was quite hot and Queensland, Australia is beating all records. Globally, it’s hot. See for example
http://discover.itsc.uah.edu/amsutemps/amsutemps.html

Chris Schoneveld
September 12, 2009 1:12 am

Since Svensmark posted here his approved translation on WUWT, he must be aware of Leif’s persistent criticism of his theory and it would be appreciated by everybody if he and Leif cross swords at this forum. The floor is open!

sweetpea1221
September 12, 2009 1:35 am

global warming be stopped would be a good experiment. My wondering here is that what if the cooling keeps coming down to earth? Is it another Ice Age? I don’t know much about earth, I mean planets. Im kind of superstitious. Like I believed in that Maya calender predicted ending of the world in 2012. Now I see this article about cooling comes instead of global warming. Such thing happens suddenly. I would like to believe in sciences. Anyway, cooling down is not a bad thing. As long as it’s good for us, for this planet.

Iip
September 12, 2009 1:44 am

This may shocking opinion,
I wonder how much cost has been charge to implement greenhouse-theory based programs around the world.
If the sun theory is right, then why it published recently in a popular newspaper?

Stefan
September 12, 2009 2:01 am

dorlomin (11:11:14) :
the history of science is chock a bloc full of controvosies where very intellegent people looking at the same evidence came to different conclusions. Try out of africa vs multiregional evolution or wave vs particle in classic physics, big bang vs steady state or the host of alternative models in physics at the moment.
The people on the wrong side of those debates were not stupid, following religous cults or falsifying evidence for grant money.
They were sincere, hard working and often brilliant. Just like the people who won the debates.

This aspect of science has puzzled me. How can intelligent people come to different conclusions about the same data? Surely if different conclusions are available, nobody should be coming to any one conclusion. Rather, we should add the two as two possibilities.
And given that data is often uncertain, neither possibility should be discounted too early. In fact, it has been noted that gifted people in the world of design are in the habit of keeping several possibilities in play for as long as possible, letting each one be developed and matured in parallel. It is a key to creative thought and development.
It was scientists claiming “the science is settled” that raised by sceptical curiosity.
It seems to me a lot of people have a faith in science, that science is the best method for obtaining true knowledge. But there then seems to come a little cognitive slip, and people go on to feel that science gives you true knowledge. It is science! They are scientists! They must be right!
Meanwhile, the scientists themselves are working on some really hard problems, and that’s what they love to do (I would imagine.) But again, something weird happens… perhaps because they have to publish papers… and how do you publish on a very hard problem that nobody, including yourself, has solved?
So this other weird thing seems to happen. All the evidence we have so far points to X, so scientifically, only X is likely true… but that’s a weird cognitive slip. It is like sending out a search party into a forest, and the search party covers 10% of the forest. You then report back “all the evidence we have is that the missing person in NOT in the forest”. And then even more weird, when you cover another 10% of the forest, and you find the missing person, people report, “all the evidence is that the person is NOT in the forest, and this one person we found was just a statistical anomaly, and they’re just someone who looks like the missing person, but it is not them, because all the previous literature on the subject is very unlikely to be wrong.”
Sure, people are clever, but it seems that the theory and ideals of science, are not easy to put into practice reliably. There is pressure to publish, there is pressure to survive, to build a reputation, and so on. Otherwise, why would people jump to conclusions when so many alternatives exist? And you don’t have to be a selfish career chaser either. You could be a very sincere and concerned person, someone who desperately wants to do the right thing and protect the environment. You know it is obvious that humanity’s presence, as population continues to grow, is placing a greater burden on the planet. And as a scientists, you feel it is your utmost moral and ethical obligation to bring ANY evidence of this to the public’s attention.
Now, you might not be certain about global warming, but you are certain about humanity’s dangerous impact in general, so even if global warming is not a watertight theory, your moral obligation–you couldn’t sleep at night otherwise–is to make as much of it as possible, and your fellow scientists–because remember, there isn’t just one person with a moral conscience, but a whole generation of people with an awakening ethical/planetary concern–all your fellow scientists agree the situation is dire, we’re heading for a disaster, and somehow, we need to change. Are you going to hang back and say, well gee, there is so little data, we just don’t understand the climate.

Manuel
September 12, 2009 3:38 am

“UK Sceptic (01:05:16) :
If we are sliding into another LIA then is it possible we’ll see governments paying industry to pump out as much CO2 as it can?”
I really don’t know if we heading to a cold period anytime soon, but I suspect that, unfortunately, pumping out CO2 is not going to help.
It’s a pity really that all this CO2 hysteria has no basis, because Global Freezing is scarier than Global Warming. We don’t have any good solution for it when it comes. And it will come eventually. That’s for sure.

Patrick Davis
September 12, 2009 3:42 am

“E.M.Smith (14:26:36) :
Too late. It already is. Hundreds of children dead in Peru from early onset snow. Crops ripening slowly in Canada and late planting from persistent snows. Argentina talking about a complete embargo of wheat exports due to cold induced crop failure (they are one of the few major exporters in the world in normal years…) Exceptional skiing started in New Zealand and Australia, the list goes on.”
The only problem with this, and although the snow season did start weeks earlier than “usual” in Aus and NZ, and in Melbourne in particular was very cold just weeks after the bush fires entering into winter, August was 0.08c warmer than the long term average (According to the media and the BoM that is). Today, in Sydney’s inner west, it was 30c, quite nice actually.
Incidentally here in New South Wales, “authorities” are back-burning and creating firebrakes, errrm….that’s reducing fuel in my eyes. Seems “authorities” are learning. One commenter on the news tonight stated that (Not actual words but the sentiment is the same) “We’ve wanted to do this for many years.”. So “they” have been prevented, by others, from doing what is propper.

Patrick Davis
September 12, 2009 3:51 am

“tallbloke (08:20:53) :
Patrick Davis (07:33:36) :
“tallbloke (07:16:12) :
Leif Svalgaard:
“According to calculations by British scientists, the strength of the Sun’s magnetic field has doubled during the Twentieth Century alone.”
Those same scientists now know that the doubling didn’t happen.
Quite right Leif. They now estimate that it was a 79% increase rather than a 100% increase.”
And that is still an estimate. Estimates are like “golbal average temperatures”, they are meaningless.
Estimate was a poorly chosen word. The difficult process of gaining useful and valid information from the data is still a worthwhile effort, despite uncertainty.
Unless you are of the opinion that we should throw our hands in the air and sit down in ignorance?”
In terms of trying to work out if “nature (The Sun)” or “man” is driving “climate”, then yes, sit down and worry about much more important things.

Patrick Davis
September 12, 2009 4:08 am

“Ron de Haan (08:05:49) :
Patrick,
I can not speak for the Brits, but the latest EU parliament election has been devastating for the left.
The upcoming elections in the Netherlands will wipe the current ruling parties of the map.
Believe me, people are fed up and the genie is out of the bottle.”
I’m a British and New Zeland citizen, living in Australia, so it’s been a while since I’ve lived in the UK/EU (And I have lived as well in Ireland and Belgium). I am not sure about the fact there is a swing from the left in the EU, it maybe true (It does appear to coinside with a swing to the left in Aus/NZ). But, it’s not the puppets you vote for who “have” power, it’s the hoards of “coat tail taggers”, those you don’t see (In Australia we did see recently with the KRudd747 Utegate “scandal”. We got to see, on TV at least, the sorts of people that are “driving policy”. Anorack wearing types, you know what I mean?). There is a great British TV show called “House of Cards”, and it sums up the situation between the elite and the rest of us well in a satiricle sort of way.
My main point is parliament, gummint, “democracy” are all “smokescreens” giving the unwashed masses, like myself, the illusion we have a say. The only way, as I see it, we have a say is if we do what the French did on Bastille day. Trouble is, DeadEnders, Coronation St, Footy is on TV, KFC and MacChunders is open 24hrs, no-one cares we’re being royally shafted (Excuse my Anglosaxon).

RR Kampen
September 12, 2009 4:47 am

E.M.Smith (14:26:36) :
“Can explain why you think it is hotter “globally”. Hint: It has to do with putting a lot of thermometers on the tarmac on tropical islands during the growth of the Jet Age then using them to say that the surrounding water is the same temperature.”
The expectation for September is based on satellite measurements at least by me (AMSU-A).
We meteorologists in Holland checked whether warming was larger on airport stations like Rotterdam vs. places with increased urbanization in the vicinity of 5 km like De Bilt vs. rural places like Eelde or Terschelling Island. No difference, warming everywhere.
Which can be witnessed by those who had ice skating as a hobby – and have lost it (like me) – winters have become so much warmer as to produce ice once every four years instead of simply every year (as of 1988).

Patrick Davis
September 12, 2009 5:51 am

“sweetpea1221 (01:35:57) :
global warming be stopped would be a good experiment. My wondering here is that what if the cooling keeps coming down to earth? Is it another Ice Age? I don’t know much about earth, I mean planets. Im kind of superstitious. Like I believed in that Maya calender predicted ending of the world in 2012. Now I see this article about cooling comes instead of global warming. Such thing happens suddenly. I would like to believe in sciences. Anyway, cooling down is not a bad thing. As long as it’s good for us, for this planet.”
No. It’s just the the Mayan calendar ends in 2012 (Our calendar), NOT the end of the world. A fallacy like AGW.

kim
September 12, 2009 5:58 am

Heh, Scott, the list of those banned from ‘Open Mind’ constitute an honor roll of honest scientists. JeanS, Svalgaard, lucia are just at the head of the list. It is an echo chamber over there, just as is Real Climate.
Scott, you really ought to investigate in depth the Ian Joliffe fiasco over there. Tamino, he who sees as through a glass darkly, defended Michael ‘Piltdown’ Mann’s crooked hockey stick statistics by appealing to the work of a known statistical expert, Ian Joliffe. Months later, Joliffe caught wind of Tamino’s ploy and debunked it on Tamino’s site. Frankly, I’m amazed that Tamino allowed it to stand. His usual technique is to either ban a protaganist from the fight, or disarm him, tie his hands behind his back with editing of comments, and then let his disgusting pack of commenters kick the poor devil into submission.
You have some hints of being a reasonable, and persuadable believer in AGW. You have got to come to a real understanding of how narrow, prejudiced, and ultimately unscientific those two most prominent alarmist sites are.
==================================

Harold Ambler
September 12, 2009 7:03 am

Leif Svalgaard (22:52:04) :
Harold Ambler (05:22:10) :
http://cosmicrays.oulu.fi/
As I have pointed out so many times, one must look at many stations [just as with temperature]. Showing just one [or a cherry picked bunch] is quite meaningless. Figure 1 of http://neutronm.bartol.udel.edu/reprints/2007bieber.pdf shows some more stations. Including South Pole. From the article: “[1] The count rate recorded by a neutron monitor at South Pole, Antarctica, displays a long-term decline over the 32-year span from 1965 to 1997. “.

If this is an argument, it is not a good one. The decline you reference from 1965 to 1997 is consistent with the oft-referenced prolonged solar grand maximum of the period, as well as with consequent ocean heating. It is also consistent with the gradual decline in SSTs and atmospheric temperature since the El Nino of 1997-1998, with the seas’ thermal inertia buffering any sudden drop in temperature today. Again, if you are trying to discount any GCR-induced climate forcing, you have more or less neatly supported the opposing side’s position.
With regard to Oulu Neutron Monitor, are you suggesting that it is poorly calibrated? Are you suggesting that its current reading is not indicative of the most prolonged and deepest solar minimum since the station was put into operation?

Invariant
September 12, 2009 7:44 am

Chris Schoneveld (01:12:29): Since Svensmark posted here his approved translation on WUWT, he must be aware of Leif’s persistent criticism of his theory and it would be appreciated by everybody if he and Leif cross swords at this forum.
Yes! In these interesting times it is curious with so much brilliant and solid input from Danish scientist. I would argue that Leif Svalgaard, Henrik Svensmark and Ole Humlum, all of them Danish, have so many different and interesting opinions, that a discussion (written or live) between these would be of immense value for us.

Oliver Ramsay
September 12, 2009 8:16 am

RR Kampen said “We meteorologists in Holland checked whether warming was larger on airport stations like Rotterdam vs. places with increased urbanization in the vicinity of 5 km like De Bilt vs. rural places like Eelde or Terschelling Island. No difference, warming everywhere.
Which can be witnessed by those who had ice skating as a hobby – and have lost it (like me) – winters have become so much warmer as to produce ice once every four years instead of simply every year (as of 1988).”
—–
It’s always interesting to see anecdotal evidence from around the world. My own anecdotal contribution is that all the anecdotes from single lifetimes add up to far more heat than the 0.8C that is claimed for the Earth in a century.
The oft-reported warming of the Arctic, which is much greater than the global average, must ( one would think) make it harder for other places to claim warming much greater than the average.
You’re sure that winters have become so warm that ice comes but once in four years. How about the summer? It must be a lot warmer, too, isn’t it? Or, maybe, it’s colder and that’s how you can make the averages make sense. You’d have trouble doing that here in British Columbia, where all the warmer anecdotes are exactly off-set by the colder anecdotes and our carbon tax is another funny story.

September 12, 2009 8:23 am

yeah…weather is really unpredictable. Here in the philippines, the weather is insane, Sometimes it is too hot, sometimes it rains too hard and non stop. So some of the province here are experiencing floods…read my blog post about it…
http://wp.me/pDpXL-c

kuhnkat
September 12, 2009 8:31 am

Phil,
“Jumping the gun a little, for example why do the nuclei supposedly generated by the Forbush events take a week to build into clouds whereas those released from jet engine exhausts produce clouds in a matter of seconds? Also the cloud cover decayed away measurably in a couple of days when air travel over the US was shut down 8 years ago.”
And this has what to do with the discussion??
If you shut off cosmic rays their contribution stops. If you stop flying jets, their contribution stops.
A better question is why specific altitude ranges are better for the creation of clouds from jet exhaust as opposed to other stimulus!!!
The causes of clouds at different altitudes and conditions are DIFFERENT!!! The types of clouds at different altitudes and conditions are DIFFERENT!!!
The effects of clouds at different altitudes and conditions are DIFFERENT!!!
Please try to reason past your bias.

Invariant
September 12, 2009 8:32 am

Dear Dr. Svalgaard,
In most climate models it is being assumed that our climate is extremely sensitive to the amount of CO2 in the atmosphere. Another possibility is that the climate is extremely sensitive to the output from the sun. Assuming that latter, I have demonstrated that the time integrated magnetic field of the solar wind (HMF B) can be reasonably well fitted to the global temperature anomaly (HADCRUT3). The equation is:
T_est = 0.007640*cumsum(HMF_B-5.7848)-0.4470;
The plotted results is,
http://i25.tinypic.com/fb97ph.jpg (moderator: please include figure)
The reason I integrate HMF B is that the governing equation for the global temperature is a differential equation,
m•cp•dT/dt = Qin – Qout
Thus we must integrate anything that contributes to climate change to determine how the temperature is being influenced. What is fascinating about the time integral of HMF B is that it fits quite well both with the cold period in the beginning of the previous century and the rapid temperature increase in the last decades of that century. Obviously other factors influence climate as well and the deviation is particularly large in 1910 and in 1940. Although I have fitted two parameters only, this is clearly a toy model. Still I argue that we cannot say that it is a coincidence that the weak solar cycles 14 and 15 came simultaneously as the cold period in the beginning of previous century.
What do you think about this “coincidence”?
[Certainly the correlation in the toy model implies that our climate is extremely sensitive, but I argue that this sort of sensitivity may be in concord with the assumption that our climate is sensitively dependent on the initial conditions as Lorenz told us in 1963.]

william mullen
September 12, 2009 8:36 am

Dear Mr. Watts,
I found your presentation of Professor Henrik Svensmark’s piece so riveting that I couldn’t resist continuing the activity you performed on the Google translation. My notion is that the better and more grammatical the English version is the less likely the piece is to be dismissed (irrational but all too common). Therefore I will try to cut and paste my fine-tuning of your fine-tuning of the Google translation below. Whether or not this succeeds you are encouraged to email me so that I can send my version to you as a formatted attachment.
Thanks for the good work.
Bill Mullen
Prof. William Mullen
Dept. of Classics
Bard College
Annandale-on-Hudson, NY 12504
Watts Up With That, 11 September 2009
This opinion piece from Professor Henrik Svensmark was published September 9th in the Danish newspaper Jyllands-Posten. Translation is from Google translation with some post translation cleanup of jumbled words or phrases.
WHILE THE SUN SLEEPS
HENRIK SVENSMARK, Professor, DTU, Copenhagen
Indeed, global warming has stopped and a cooling is beginning. No climate model has predicted a cooling of the Earth, only the contrary. This means that projections of future climate cannot be carried out with predictive power, writes Henrik Svensmark.
The star which keeps us alive has had over the last few years almost no sunspots, which are the usual signs of the sun’s magnetic activity.
Last week, the scientific team behind the SOHO satellite (Solar and Heliospheric Observatory) reported that the number of sunspot-free days suggest that solar activity is heading towards its lowest level in about 100 years’. Everything indicates that the Sun is moving into a hibernation-like state, and the obvious question is whether this has any significance for us on Earth.
If you ask the International Panel on Climate Change IPCC, representing the current consensus on climate change, the answer is a reassuring ‘nothing’. But history and recent research suggests that it is probably completely wrong. Let us take a closer look at why.
Solar activity has always varied. Around the year 1000, we had a period of very high solar activity, which coincided with the Medieval Warm Period. It was a period when frosts in May was an almost unknown phenomenon and of great importance for a good harvest. Vikings settled in Greenland and explored the coast of North America. For example, China’s population doubled over this period. But after about 1300, the earth began to get colder, and that was the beginning of the period we now call the Little Ice Age. In this cold period all the Viking settlements in Greenland disappeared. Swedes were surprised to see Denmark to freeze over in ice, and the Thames in London froze repeatedly. But more serious were the long periods of crop failure, which resulted in a poorly nourished population; because of disease and hunger population was reduced by about 30 per cent in Europe.
It is important to note that the Little Ice Age was a global event. It ended in the late 19th century and was followed by an increase in solar activity. Over the past 50 years solar activity has been the highest since the Medieval Warm Period for 1,000 years ago. And now it appears that the sun returns and is heading towards what is called ‘a grand minimum’ of the kind we saw in the Little Ice Age.
Many have tried to explain away the coincidence between solar activity and climate through the ages as just that– coincidence. But it turns out that almost no matter what time one studies, not just the last 1000 years, there is a correlation. Solar activity repeatedly over the past 10,000 years has fluctuated between high and low. Actually, the sun has been spending over the past 10,000 years in a sleep mode, approx. 17 pct of the time, with a cooling of the Earth to follow.
One might wonder why the international climate panel IPCC does not believe that changes in the sun’s activity has no effect on the climate. The reason is that they only include changes in solar radiation.
Radiation alone would be the simplest way by which the sun could change the climate. A bit like turning up and down the brightness of a light bulb.
Satellite measurements of solar radiation have shown that the variations are too small to cause climate change, but this finding has closed our eyes to a second much more powerful way the sun is able to affect Earth’s climate. In 1996 we discovered a surprising influence of the sun – its impact on Earth’s cloud cover. High energy accelerated particles of exploded stars, the cosmic radiation, are helping to form clouds.
When the Sun is active its magnetic field shields better against the cosmic rays from outer space before they reach our planet, and thus by regulating the Earth’s cloud cover the sun can turn up and down the temperature. High solar activity has produced fewer clouds and the earth is getting warmer. Low solar activity provides an inferior shield against cosmic radiation, and results in increased cloud cover and hence a cooling. Since the sun’s magnetism has doubled its strength during the 20th century, this natural mechanism may be responsible for a large part of global warming during this period.
The mechanism also explains why most climate scientists are trying to ignore this possibility. They prefer the idea that the 20th century temperature rise is mainly due to human emissions of CO2. If the sun has influenced a significant part of warming in the 20 century, it means that CO2’s contribution must necessarily be smaller.
Ever since our theory was put forward in 1996, it has been through a very sharp criticism, which is normal in science.
First it was said that a link between clouds and solar activity could not be correct because no physical mechanism was known. But in 2006 after many years of work we managed to conduct experiments at DTU Space, where we demonstrated the existence of a physical mechanism. The cosmic radiation helps to form aerosols, which are the seeds for cloud formation.
Then came the criticism that the mechanism we have found in the laboratory was unable to survive in the real atmosphere and therefore had no practical significance. But theatcriticism we have just emphatically refuted. It turns out that the sun itself is doing what we might call natural experiments. Giant solar flares can cause the cosmic radiation on earth to dive suddenly over a few days. In the days after the eruption cloud cover falls by about 4 per cent. And the content of liquid water in clouds (droplets) is reduced by almost 7 per cent. Indeed, you could say that the clouds on Earth originated in space.
Therefore we have looked at the sun’s magnetic activity with increasing concern since it began to wane in the mid-1990s.
That the sun could fall asleep in a deep minimum was suggested by solar scientists at a meeting in Kiruna in Sweden two years ago. As Nigel Calder and I updated our book “The Chilling Stars” therefore, we wrote a little provocative suggestion: “We recommend our friends to enjoy global warming while it lasts.”
Indeed, global warming has stopped and cooling is beginning. Last week, it was argued by Mojib Latif from the University of Kiel at the UN World Climate Conference in Geneva that cooling may continue through the next 10 to 20 years.
His explanation was natural changes in North Atlantic circulation and not in solar activity. But no matter how they are interpreted, natural variations in climate penetrates more and more into our total picture.
One consequence may be that the sun itself will show its importance for climate and thus test the theories of global warming. No climate model has predicted a cooling of the Earth, only the contrary.
This means that projections of future climate cannot be made with any real predictive power. A forecast that says it may be warmer or colder for 50 years is not very useful, since science is not able to predict solar activity.
So in many ways, we stand at a crossroads. The near future will be extremely interesting and I think it is important to recognize that nature is completely independent of what we humans think about it. Will Greenhouse Theory survive a significant cooling of the Earth? Not in its current dominant form. Unfortunately, tomorrow’s climate challenges will be quite different from Greenhouse Theory’s predictions, and perhaps it will again becomes popular to investigate the sun’s impact on climate.
Professor Henrik Svensmark is director of the Center for Sun-Climate Research at DTU Space. His book “The Chilling Stars” has also been published in Danish as “Climate and the Cosmos” (Gads Forlag, DK ISBN 9788712043508)

kuhnkat
September 12, 2009 8:38 am

Leif,
“As I have pointed out so many times, one must look at many stations [just as with temperature]. Showing just one [or a cherry picked bunch] is quite meaningless.”
Then why do we measure CO2 at only specific, carefully chosen, sites??
Because they are looking for only specific, carefully chosen, results??
HAHAHAHAHAHAHAHAHAHAHAHAHAHA
CO2 is alledgedly measured in areas to minimise the fluctuations of direct anthropogenic increase. Temps appear to be measured to ENHANCE the fluctuations of direct anthropogenic increase.
So, which is the Cherry Pick???

September 12, 2009 8:57 am

Joel:
A) Even the “deniers” have predicted a warming spike, which would correspond with past trends during an El Ninio, and
B) We’re not even to mid September yet. There’s a long way to go. Man, are you counting your chickens before they hatch, or what?
C) When we see a similar spike, but it goes in the opposite direction (i.e. a cooling spike), well, then everyone on your side of the AWG fence waves their arms and lectures us….. “It’s just weather”. I always found that awfully convenient.

Ron de Haan
September 12, 2009 9:04 am

Nick Yates (21:57:45) :
Phil’s Dad (09:44:49) :
“I accept the cowardly label – I use a pseudonym here because even being seen to consider “skeptical” views can affect my job as a European politician with an environment brief”.
“So much for free speech and democracy in Europe”.
Nick,
I only agree with half of your remark.
This attitude effects and undermines democracy, but free speech is not suppressed in Europe.
It is the doctrine of a consensus to “correct politics” that undermines our systems.
This also is a proof of the “power” of the AGW doctrine.
If people involved in the Governmental Process are afraid to speak out (because it will harm their career or cause a breach of the party line, there will never be a healthy discussion about, what I believe is the most important subject of our times, with devastating consequences.
Politicians who are afraid to speak out and don’t defend their opinion commit betrayal to their and constituents and themselves and only make matters worse.
There is no oppression of freedom of speech in Europe.
There is no body who can stop a politician to speak out, tell the truth and present his arguments.
The President of the Chech Republic, Vaclav Klaus spoke out and those who did not agree walked out on him.
This only increased his popularity and today the Check Republic has the highest number of people with a skeptic attitude towards the Climate Hoax.
The moment a politician has to suppress his own opinion, he should go.
At this moment we are fully depending on the USA to reject the Waxman Marley Bill
and hopefully this rejection will encourage European Politicians to speak out.
But at this moment in time, Europe is lost.

rbateman
September 12, 2009 9:38 am

Leif Svalgaard (00:00:28) :
So, if someone took two or 3 signals out of a choice of a dozen, superimposed them by addition, the training of scientists does not allow them to unravel.
Is this true?

September 12, 2009 10:05 am

Michael ‘Piltdown’ Mann’s

This is just another of those scurrilous ad hominid attacks (to the Mann).

Rhys Jaggar
September 12, 2009 10:31 am

Mark Serreze doesn’t think so:
http://www.telegraph.co.uk/earth/6176989/German-ships-sailing-through-North-East-Passage.html
He says that the recovery of the ice is ‘not a recovery’, merely a ‘result of weather conditions’.
I note no data whatsoever backing up Mr Serreze’s claims on when in history the NE Passage has been open on a century-scale, since Mr Serreze is clearly only interested in the past 30 years.
He may be right, he may be wrong, but his statements are not those of a scientist – they are those of a politician.

September 12, 2009 10:33 am

Kim and Bill P (10:05:42) – Ha! Excellent.

Gene Nemetz
September 12, 2009 10:40 am

william mullen (08:36:36) :
Henrik Svensmark himself posted a comment in this thread with a translation from Nigel Calder.
Scroll up to this comment :
Henrik Svensmark (15:01:28) :

Jeff Alberts
September 12, 2009 10:44 am

The President of the Chech Republic, Vaclav Klaus spoke out and those who did not agree walked out on him.
This only increased his popularity and today the Check Republic has the highest number of people with a skeptic attitude towards the Climate Hoax.

Please try again…

Nogw
September 12, 2009 10:59 am

Bill P (10:05:42) : It was his “hockey stick” his own inflicted “ad hominem”, not to count his “trains”.

RR Kampen
September 12, 2009 11:16 am

Oliver Ramsay (08:16:51) :
“You’re sure that winters have become so warm that ice comes but once in four years. How about the summer? It must be a lot warmer, too, isn’t it? Or, maybe, it’s colder and that’s how you can make the averages make sense. ”

We have a continuous temperature record going back to 1706, with some breaks it goes back to 1634.
The eighteen warmest years on the list are all 1988 or after.
2009 is going into the top ten (again) and will kick 1934 to 19th.
The two hottest years since at least 1634 are 2006 and 2007. They put us in an almost Mediterranean climate, e.g. Bergerac in France.
Three of the summers since 1988 (including ’88) were cooler than normal (but nothing exceptional). Three more were average. The rest was hot, with 6 in the top ten and 6 more (including 2009) in ranks 10-20. All nine summers this century were far above average.
July 2006 was by far the hottest month since 1634. Statistical analysis put the return time of such a month at about 4000 years.
Autumn 2006: hottest since at least 1634.
Winter 2007: same thing, it was like a normal april.
Spring 2007: same thing.
Statistical analysis on the record since 1706 ‘proves’ this impossible. You’d have as much chance of tunneling quantumwise through a wall. I know non-mathematicians wouldn’t accept it, but this simply proves climate change.
These are the largest cherries. They swim in a sea of cherries. Flora and fauna are a-changing here. O well, last winter was a little colder than normal. April and spring made second hottest since at least 1634 (it must be cooling since 2007!).
Let’s look at daily Tn, Tx, Taverage-records since 1901. Here’s the graph, until autumn 2006. Realise the years after 2006 put the bar for highs about 70% higher -> http://nlweer.com/img/17sep2006.PNG . Absurd, isn’t it. But so true. We can feel it.

Paul Vaughan
September 12, 2009 11:21 am

tallbloke (00:43:46) “how much of the late C20th warming attributed to co2 was actually due to the positive phases of those same oceanic cycles?
I’v asked this question many times of proponents of the AGW hypothesis, but have never recieved a reply. It’s an issue they seem to avoid like the plague. I don’t expect a properly quantified answer. An acknowledgement that at least some of the warming attributed to co2 was due to cyclic oceanic behaviour would be a start.”


I’ll be checking back to see if Joel Shore gives you at least a partial answer &/or basic acknowledgement. Good question. The comment I would add: Let’s not limit our focus to oceans – (see Yu.V. Barkin).

September 12, 2009 12:13 pm

Harold Ambler (07:03:27) :
With regard to Oulu Neutron Monitor, are you suggesting that it is poorly calibrated?
I’m pointing out that different stations show slightly different counts, for several reasons:
1) calibration is hard to keep constant over time. Not ‘poor’ just difficult
2) the Earth’s magnetic field changes with time and differently at different stations.
Here is something on calibration: http://dpnc.unige.ch/ams/ICRC-03/FILES/PDF/850.pdf
The typical uncertainty is of the order of 0.2%
Thule [near the north pole] should be very sensitive to the cosmic ray flux. Here is its variation http://www.leif.org/research/CosmicRayFlux4.png
and so on. Just picking Oulu because is happens to fit whatever one wants to argue is not good science.
Are you suggesting that its current reading is not indicative of the most prolonged and deepest solar minimum since the station was put into operation?
I’m suggesting [and data shows] that there is very little modulation at solar minimum and that it does not matter how long the minimum is, you can’t get less than no spots and no modulation, so one would expect about the same GCR count at every minimum.

September 12, 2009 12:17 pm

rbateman (09:38:23) :
So, if someone took two or 3 signals out of a choice of a dozen, superimposed them by addition, the training of scientists does not allow them to unravel.
Is this true?

You lost me again. If you think you have something to show, get on with it. Say what it is you are on to [or whatever] or suggest. Guessing games are not my strong side.

anna v
September 12, 2009 12:18 pm

Joel Shore (20:28:41) :
Oh, here http://www.cdc.noaa.gov/csi/images/GRL2009_ClimateWarming.pdf is a peer-reviewed paper that has now appeared in Geophysical Research Letters that has shown again what that RealClimate post showed, which is that periods of a decade or so of negative trend are in fact not uncommon in climate models forced with greenhouse gases.
So expect that this new evidence will now greatly increase your faith in climate models?
.
It is not new evidence. It is going back and adding a few more parameters to fiddle with the data, in a very complicated way, true, dragging in fluid dynamics etc, but the end result is: like fitting a Fourier series to a function, it fits a complicated convoluted program to a known function.
This navel gazing only happened because the data did not behave as they were predicting.
The thing is that the IPCC published growing curves for the future correlated with growing CO2, and that cannot be undone.
In any case, the basic problem with all these GCM is that they have no handle on error propagation, as is admitted in the IPCC report and I have given a reference in a previous thread here. No error band accompanies an individual model projection, because it is unknown. This means that the future temperatures shown are at best a guess, at worst a Tarot output. Instead of error propagation IPCC has the spaghetti of models and commits the hubris of averaging the spaghetti and calling them projections and, in parallel, confusing cursory readers of the IPCC reports who think the color bands are real errors.
I would expect that the neural net model of Tsonis et al ( there was a thread here some time ago )would be a better direction to follow for chaotic modeling of climate , rather than trying to make a silk purse ( chaotic approximations) from a sow’s ears ( linear approximations of highly non linear functions).

September 12, 2009 12:42 pm

Harold Ambler (07:03:27) :
With regard to Oulu Neutron Monitor, are you suggesting that it is poorly calibrated?
Some more long-term series:
http://www.puk.ac.za/fakulteite/natuur/nm_data/data/nmd_e.html

September 12, 2009 12:55 pm

RR Kampen
What figures are you quoting? Are you from Holland?
In the CET record back to 1660 our warmest winter remains 1869 followed by 1834
Other than 2006 the four warmest autumns are 1730 1731 1818 1729
Our two warmest summers are 1976 and 1826.
Many of the ‘warm’ records are still held by dates prior to the 1980’s.
Bearing in mind the Hadley record covers the LIA it is remarkable that average and individual temperatures show a limited difference between then and now.
tonyb

acementhead
September 12, 2009 1:25 pm

Tiles (01:11:09) :
…ever heard of thermal inertia? That could well explain continued warming in the face of a fading sun.

There is no such thing as “thermal inertia” so it most certainly could not.

Joel Shore
September 12, 2009 1:29 pm

Sonicfrog says:

Notice that the models used in the series presented were created around 2005. This is when the specter of the possibility of a cooling period was already entering the lexicon of the global warming debate, primarily because people were starting to notice that it wasn’t warming as expected. I would be more impressed with a model that was created during the 90’s, when the consensus was that there would be no more cooling.

Paranoid much, are we? Do you actually believe that the climate modelers have nothing better to do than spend lots of their effort and energy worrying about what “skeptics” will think when they create their models? (And, by the way, the models were not created around 2005…although that is likely around when the last updates that could appear in AR4 could have possibly been made.)
Anyway, even if you look at Hansen’s original model runs that he showed in 1988 (which are no doubt very crude by today’s standards…particular in handling of the oceans), you can see periods of cooling or little warming for several years at a time: http://www.realclimate.org/images/Hansen06_fig2.jpg (Note that Scenario’s B and C include a volcanic eruption in 1996 and Scenario C supposes a leveling off in emissions after ~2000 but Scenario A is an extremely aggressive scenario with continued growth in emissions and no negative volcanic forcing…and it still shows periods like 2002-2008 or 2014-2018 that are about flat, and even the whole period from 1996-2008 looks like it shows pretty minimal warming.)
What may be confusing you is that the IPCC projections of future warming, which are based on averages over model runs look nice and smooth, just as a plot of say the average temperature here in Rochester over the course of a year using all the data for the 100+ years we have would be nice and smooth showing a fairly sinuosoidal seasonal cycle. However, an actual individual year’s temperature data would have much more ups-and-downs and would include periods of at least a week or so where the temperature trend is the opposite of what one would predict from the seasonal cycle (e.g., you would see some periods with negative temperature trends in the spring and some periods with positive temperature trends in the fall). Likewise, an individual run of a climate model (and the actual climate trajectory that we follow) shows a lot of variability superimposed on the general warming trend.

Also note that on the second graph there is absolutely NO cooling after 2030. Really?

I don’t see that at all. It looks to me like you could identify decent length periods after 2030 with cooling or essentially flat behavior (for example, periods starting in ~2034). They do become less likely in these later years because that is a run for the A2 scenario, which is a quite aggressive one in terms of future emissions growth, hence the general acceleration of the warming over time.

rbateman
September 12, 2009 1:36 pm

Leif Svalgaard (12:17:45) :
I was hoping you would see the L&P might be at work in there.

acementhead
September 12, 2009 1:40 pm

Mick (01:46:48) :
“One can’t defeat a paranoid religion with logic and common sense. Or argument.”

One can not defeat ANY religion with facts and logic. They are all constructed to be immune to such criticism. ALL religions are wrong. It is cliché to say that religion and science are not in conflict but it is untrue. Science is in conflict with all error and untruth.

Joel Shore
September 12, 2009 1:41 pm

anna v:

It is not new evidence. It is going back and adding a few more parameters to fiddle with the data, in a very complicated way, true, dragging in fluid dynamics etc, but the end result is: like fitting a Fourier series to a function, it fits a complicated convoluted program to a known function.

I agree it is not new evidence. It is just going back and looking at the individual realizations in the climate modeling archive. And, there is no “adding a few more parameters to fiddle with the data”. They simply looked at the model runs that were already available.

This navel gazing only happened because the data did not behave as they were predicting.

That is just silliness. The reason they went back and looked at it is because they discovered that on the web and in the blogosphere, people apparently had no clue about how a function that consists of a slow steady rise with superimposed random fluctuations would look like.

The thing is that the IPCC published growing curves for the future correlated with growing CO2, and that cannot be undone.

That is just nonsense. The IPCC curves represent the longterm trendlines. Nobody ever expected the actual global temperature increase would be steady! It hasn’t happened in the past for the real global temperature data and it hasn’t happened in individual runs of climate models dating back at least to Hansen’s crude models from the 1980s. The IPCC explicitly discusses how they average ensembles of runs in order to get a better handle on the forced component by averaging over the climate noise.

September 12, 2009 1:44 pm

Hi Joel
What do you make of the Met offices admittance that it has cooled over the last decade-contrary to their models?
Tonyb

September 12, 2009 1:45 pm

rbateman (13:36:33) :
I was hoping you would see the L&P might be at work in there.
I don’t think L&P has anything to do with the cosmic ray count, and in any event, the time interval is too short for any conclusions.

RR Kampen
September 12, 2009 1:57 pm

TonyB (12:55:33) :
“What figures are you quoting? Are you from Holland?”

These figures are from Holland. Should’ve mentioned although that was a reply wherein the context was clear.

Joel Shore
September 12, 2009 1:58 pm

tallbloke says:

This complex sentence merits careful study. Joel seems to be saying, if I understand him correctly, that by finally acknowledging that there are longer term oceanic cycles, the models are becoming slightly more realistic in their projections.
My question for him is this: If the negative phases of oceanic cycles are able to overcome the alleged co2 forcing for a decade or more at a time, how much of the late C20th warming attributed to co2 was actually due to the positive phases of those same oceanic cycles?

I think you are misinterpetting what I said a bit. My sentence was not really addressing the issue of “realism” in general but the issue of initialization of the models with realistic initial conditions and whether that could improve short-term predictability. And, I think the jury is still out on that one.
And, actually, I don’t think it really takes long-term ocean cycles to get negative trends over about a decade. My guess is that a simple model that has a linear trend of, say, ~0.17 C / decade (which I believe is roughly the value over the last 30 years or so) and superimposed yearly random noise of about the magnitude as is seen in the real climate system would show this behavior. (This is probably true even if you assume noise uncorrelated from year-to-year although a more realistic model would have some correlations. I think Tamino had a post a while back where he demonstrated this with some computer-generated data that assumed some sort of simple year-to-year correlation.)
And, by the way, it is important to note that if you look at the global temperature data, you can also find 10-year periods when the trend was a lot greater than the 0.17 C / decade, again because of the noise.
As for whether some of the late 20th century warming could be attributed to PDO or other such long term oceanic cycle, I remain quite skeptical although I suppose further time will tell.

Joel Shore
September 12, 2009 2:02 pm

TonyB says:

What do you make of the Met offices admittance that it has cooled over the last decade-contrary to their models?

Could you give my a link to what you are referring to?

Invariant
September 12, 2009 2:16 pm

acementhead (13:25:20): There is no such thing as “thermal inertia” so it most certainly could not.
Usually thermal masses with thermal time constants are more useful concepts than thermal inertia. Please read these equations from Wikipedia:
http://en.wikipedia.org/wiki/Time_constant#Thermal_time_constant
Thus, the transient solution to the heat balance for our planet,
m•cp•dT/dt = Qin – Qout
will always involve the thermal time constant tau that is proportional to the thermal mass m•cp. For example, changing the temperature of our planet from T0 to T1, may involve the thermal time constant tau in the following manner:
T(t) = T1 + [T0 – T1] exp(-t/tau)
In words, the thermal time constant says that larger thermal masses lead to slower changes in temperature. The thermal mass for the oceans is huge, so we have to wait many years to see that the global temperature change when our sun is less active.
[Although the equations are crude approximation any trained physicist with sufficient intuition and imagination understands that the underlying mechanism remains the same – large thermal masses always leads to slow thermal transients.]

rbateman
September 12, 2009 2:17 pm

Leif Svalgaard (13:45:58) :
Preposterous!

Paul Vaughan
September 12, 2009 2:38 pm

RR Kampen (11:16:34) “Statistical analysis on the record since 1706 ‘proves’ this impossible.”
Are you assuming a random distribution? (untenable)
How are you accounting for shared-variance with natural factors?
[rhetorical questions – no need to answer]

Joel Shore
September 12, 2009 2:52 pm

Joel Shore says:

And, by the way, it is important to note that if you look at the global temperature data, you can also find 10-year periods when the trend was a lot greater than the 0.17 C / decade, again because of the noise.

For example, with the HADCRUT3 global temperature (yearly average data), I find that least-squares trendlines for 10 year periods starting in 1970 have a range from a low of +0.002 C/decade for 1987-1996 to a high of +0.430 C/decade for 1974-1983. For 12 year periods, the range is from +0.019 C/decade for 1997-2008 to +0.352 C/decade for 1992-2003. For 8 year periods, the range is from -0.117 C/decade for 2001-2008 to +0.523 C/decade for 1994-1981. For 15 year periods, the range is from +0.076 C/decade for 1979-1993 to +0.280 C/decade from 1991-2005. For 20 year periods, the range is from +0.100 C/decade for 1977-1996 to +0.234 C/decade for 1984-2003.
As you can see, as the period gets shorter, the range in trends that you find gets larger and as the period gets longer the range in trends gets tighter.

RR Kampen
September 12, 2009 3:11 pm

“Paul Vaughan (14:38:59) :
Are you assuming a random distribution? (untenable)”
Untenable? Maybe, but you can’t prove it. You can prove the data to be or to seem (equivalent, of course) randomly distributed though – that is, modulo the very significant recent trend. I’m sorry. The data are available, like a try? The whole amateur meteo community in Holland tried to find sines of all sorts or whatever regularity or function in those data and every new generation tries again. Snowball in hell. The data pass all tests for randomness.

RR Kampen
September 12, 2009 3:12 pm

(small correction – added closing tag for italics)
RR Kampen (15:11:05) : Your comment is awaiting moderation
“Paul Vaughan (14:38:59) :
Are you assuming a random distribution? (untenable)”
Untenable? Maybe, but you can’t prove it. You can prove the data to be or to seem (equivalent, of course) randomly distributed though – that is, modulo the very significant recent trend. I’m sorry. The data are available, like a try? The whole amateur meteo community in Holland tried to find sines of all sorts or whatever regularity or function in those data and every new generation tries again. Snowball in hell. The data pass all tests for randomness.

September 12, 2009 3:18 pm

I have updated my blog and the English translation is now by Nigel Calder.
Regards, Agust H Bjarnason, Iceland
http://agbjarn.blog.is/blog/agbjarn/entry/946551/
REPLY: Agust, thank you, I have updated the translation here with the one you have kindly facilitated. You have my thanks and the thanks of many readers here. – Anthony

September 12, 2009 3:26 pm

Joel
Here is the reference.
BBC radio 4 at 1.30pm today, Vicky Pope of the Met office reluctantly admits the climate has been cooling against their expectations and models
http://news.bbc.co.uk/1/hi/programmes/more_or_less/8248922.stm#email
This is the BBC’s Tim Harford item (the link is found at the bottom of the box to the right of the item “Blowing cold, then hot”).
transcript
“Tim: If the cooling that the Leibniz Institute predicts actually takes place, are you worried that ’s going to take the wind out of some of the sails of scientists who are warning about the threat of global warming?
Vicky: It’s very important to realise that there will be ten-year periods where the temperatures don’t increase or they even decrease as the Leibniz study is suggesting –
Tim: We’ve just had one.
Vicky: Yes, in fact we have, but that doesn’t mean that global warming has stopped, it’s simply a question of natural variability, giving a temporary decrease in temperature overlaid on top of a long-term warming trend, and in fact I believe that’s what the results of that study suggest –
Tim: Sorry to interrupt but you say that were going to have ten-year periods of cooling. How can we be sure that the rapid warming we saw in the 1980s and 1990s wasn’t the exceptional period?
Vicky: This is the point really, is that 1998 was exceptionally warm because there was an El Nino, because there was a natural variation overlaid on top of climate change. So what you can see very clearly is a long-term trend and then these periods of rapid warming and less rapid warming or even cooling overlaid on top of that because of natural variations.”
This should also be seen in the context of the New Scientist interview. All I am saying is that the models did not predict the (officially) admitted cooling and they are having to take ‘natural variability’ into greater account. I make no predictions as to whether this is the start of a longer cooling trend.
tonyb’

Paul Vaughan
September 12, 2009 3:55 pm

Re: TonyB (15:26:37)
Thanks for that. I see natural variation mentioned 3 times in that brief excerpt. It’s nice to see nature finally being acknowledged.
What we need next: ENSO forecasts that work like tide-tables.

rbateman
September 12, 2009 4:00 pm

The only difference between the alarming warming of today and the alarming cooling of the 70’s is that today we have the finest alarming computer arrays, cranking out enormous amounts of heat.
That heat must be pumped out of the building, and, wouldn’t you know it, the Stevenson box is the recipient, finding it’s way onto the front page of the news.
This killer computational capability, then, is put to work creating the boogey man hiding under our beds.
Of all the things to be used for.

Gene Nemetz
September 12, 2009 4:39 pm

TonyB (12:55:33) :
After reading RR Kampen’s comments no one can say that opposing views aren’t allowed at WUWT —though I’m not sure of the point he is trying to make.
He could include the Medieval Warming Period in his comments which could serve to make him look unbiased.

September 12, 2009 5:20 pm

rbateman (14:17:31) :
Preposterous!
L&P is not about lack of solar activity and solar modulation of cosmic rays, just about visibility of sunspots. So, with L&P we still have modulation as before, but we just have a harder time seeing the spots.

September 12, 2009 5:36 pm

Joel wrote:
I don’t see that at all. It looks to me like you could identify decent length periods after 2030 with cooling or essentially flat behavior (for example, periods starting in ~2034). They do become less likely in these later years because that is a run for the A2 scenario, which is a quite aggressive one in terms of future emissions growth, hence the general acceleration of the warming over time.
Isn’t this part of the problem? Using unrealistic projections to advance the science? Wouldn’t it have been better to use something less scary?
You don’t need to give the basic lecture of modeling and smoothing. BTW, I’ve been looking at these issues for a very long time and didn’t need the lecture about smoothing. It wasn’t relevant to the specifics of my comments anyway.
And, no, I’m not paranoid, just a realist. Not sure where you would get that idea. Of course climate scientists follow what the skeptics say, and desire to prove them wrong. If not, there would be no need to publish the GRL paper you cited, and the opening statement at Real Climate used to say that the blog was started to combat the misinformation on climate change spread by other blogs. Yes, that’s a while ago. I’ve been following this issue for a lot longer than that, and have watched the ebb and flow in this debate…. Oh, I’m sorry. There is no debate. The science is settled. Foolish me.
Got to go play a gig now.

Ron de Haan
September 12, 2009 6:35 pm

Spotless Days
Current Stretch: 10 days
2009 total: 203 days (80%)
Since 2004: 714 days
Typical Solar Min: 485 days
The current solar minimum in combination with a regular occuring medium sized stratospheric volcanic eruptions, like the recent eruptions from Mt Redoubt in March this year, Sarychev Peak in June and Shiveluch, which erupted two day’s ago, make weather observations a lot more interesting.
Joseph D’Aleo stated that he regarded this summer to be a “volcanic summer”, see article here: http://icecap.us/index.php/go/joesblog/major_eruptions_continue_at_mt_redoubt1/
and with more restless volcano’s active, it is very well possible that our “volcanic summer” will be followed by a “volcanic winter”.

kim
September 12, 2009 6:55 pm

Bill P 10:05:42
Not scurrilous. Michael ‘Piltdown’ Mann is responsible for his phony statistics. If the lesson of the ‘censored’ file is that he knew his statistics were phony, then it was deliberate fraud, like the Piltdown Man was.
So you explain his statistics and his cryptic file. He hasn’t; the position of explainer is open. Tamino has failed.
====================================

kim
September 12, 2009 7:05 pm

Mark Bowlin 10:33:42
Oh, now I get it. Good one, Bill.
=====================

Joel Shore
September 12, 2009 7:06 pm

TonyB says:

This should also be seen in the context of the New Scientist interview. All I am saying is that the models did not predict the (officially) admitted cooling and they are having to take ‘natural variability’ into greater account. I make no predictions as to whether this is the start of a longer cooling trend.

I don’t know what you mean by “the models did not predict the (officially) admitted cooling and they are having to take ‘natural variability’ into greater account”. The models do in fact predict that there will be periods of cooling due to natural variability. And, the models are not being changed to take it into greater account. The Easterling and Wehner paper that I referenced ( http://www.cdc.noaa.gov/csi/images/GRL2009_ClimateWarming.pdf ) and the RealClimate blog post that I referenced don’t change the models. They just looked at the statistics of various length trends in individual runs of the models in the climate model archive.
Now what is true is that while the models can simulate similar natural variability to what is seen in the real world, they can’t actually match the particular ups-and-downs that the climate system follows because that is very sensitive to the initial conditions. So, they can’t predict in advance when the periods with little trend will occur (or when the periods with steep trend will occur) but they can predict things regarding the statistics of these periods and seem to be doing a reasonably good job doing so. (It is hard to say anything more precise because unfortunately our statistics for the real world are limited by the fact that we don’t have a whole ensemble of Earth’s each with perturbed initial conditions.)

Joel Shore
September 12, 2009 7:21 pm

Sonic Frog says:

Isn’t this part of the problem? Using unrealistic projections to advance the science? Wouldn’t it have been better to use something less scary?

Well, for the purposes of showing what they wanted to show, I think it is generous of them to use one of the scarier scenarios. If they had used one of the less dramatic ones, then the rate of warming would have been lower and presumably the occurrence of negative or near-zero trends would have been even more common. They probably chose the A2 scenario to dispel the notion that such occurrences are only possible in milder warming scenarios.
As to whether the A2 is unrealistic, I don’t think it necessarily is. The various scenarios are basically supposed to represent what would happen if we don’t take serious actions to constrain our emissions for the explicit purpose of stopping global warming. At the rate CO2 emissions have been increasing (and especially the rate at which China is building new coal plants), I’m not sure that the A2 scenario is at all unrealistic (and this is in a world in which there is already at least a lot of talk about constraining emissions). Hopefully, in the real world, we will end up constraining our emissions, although if this comes to pass, it will certainly be no thanks to people who are continuing to contest the basic science and to make alarmist predictions of how such constraints on emissions will lead to economic ruin.

And, no, I’m not paranoid, just a realist. Not sure where you would get that idea. Of course climate scientists follow what the skeptics say, and desire to prove them wrong. If not, there would be no need to publish the GRL paper you cited, and the opening statement at Real Climate used to say that the blog was started to combat the misinformation on climate change spread by other blogs.

It is one thing to say that a few climate scientists might write a paper or run a blog in response to “skeptics”. It is another to suggest that they are somehow markedly modifying the physics in their climate models. (And, as I also showed, it is utterly without foundation since even the earliest climate models runs showed natural variability that led to there being several year periods with little temperature trend.) Most climate scientists spend most of their time worrying about doing science and engaging with their colleagues who are also doing science and publishing, not gearing their entire research program around a few bloggers on the internet.

rbateman
September 12, 2009 8:10 pm

Ron de Haan (18:35:15) :
I have been searching for the graph I did that shows how bigger volcanic eruptions like to cloister around solar minmum, the bigger the better. Still digging.
The rest of the volcanic pops are more or less random distribution.
And that was the only thing that stood out.

Paul Vaughan
September 12, 2009 8:46 pm

RR Kampen (15:12:15) & RR Kampen (15:11:05) “Untenable? Maybe, but you can’t prove it. […] I’m sorry. The data are available, like a try? […] Snowball in hell. The data pass all tests for randomness.”
Any bright Stat 101 student can easily demonstrate a lack of random scatter in the residuals plots. The regression model assumptions are flawed; thus, inference based on the regression model is nonsense.
Also, since you appear to be making other false assumptions, please see my comments here:
http://wattsupwiththat.com/2009/09/09/arctic-temperatures-what-hockey-stick/
[Paul Vaughan (15:31:09) Sept. 10, 2009]
Consider contributing something positive to the enthusiasm here about natural climate variation.
All the best.

masonmart
September 12, 2009 10:13 pm

What Joel says about the models predicting long cooling periods is absolute cobblers (unless they are being adjusted yet again to show this). We’ve seen many graphs of the post 1999 Surface temp predicted by models climbing like a stairway to heaven with random up and down noise on the way but nothing like what is possibly 12 years of cooling. As the AGW “industry” now admits the cooling despite the use of adjusted data to try to disprove it and as such it has to admit the dominance of natural climate forcing over CO2 and the tiny part that Anthropogenic CO2 plays in that. May be I’ll start a basic science blog to explain things like the Carbon cycle and why AGW if it happens continues indepently from any other variable. It doesn’t stop for long periods. All that is happening now is a demonstration that AGW is falsified or as I believe just a weak phenomenon.
Joel, why don’t you answer questions regarding unequivocal demonstration that AGW (note the A) is real and a massive cause for concern and why its central tenets are falsified so easily?

anna v
September 12, 2009 11:17 pm

Joel,
I have no doubt that by construction the models and old runs if one looks at them with a lens will show vairations since the end product depends on many input equations.
The facts are:
1) the models chose either to smooth the bumps or chose runs with no bumps to give to the IPCC
2) The IPCC took these modeler estimates at face value as if they were statistical variations and made an average
3) It presented this average as written in stone ( science settled)
4) and most important, it pushed a political taxing agenda based on these plots back in 2007
By navel gazing the various runs what is happening is, the game rules are changed continually ( the science not settled). But also it demonstrates in practice the cavalier fashion these runs have been used, with no error bars for the normal scientists to be able to judge coherence and meaning on a plot. I suspect, but cannot prove, that error bars put on the referenced plots would exceed the variations of bumps that are being pushed a proof of “natural variability” in models.
What do I mean by error propagation? I do not mean initial conditions of probability distributions.
I mean what a normal scientist/physicist means: Take all the input parameters? and assign them their errors. Use a minimizing program that will vary the error bars of the input parameters and come out with a chi square per degree of freedom for the given curve and an error bar for the given curve ( temperature).
From the simple model in junkscience.com, I thought that albedo was a parameter in the GCMs. You cleared that up for me, that it is an output in the GCMs, contrary to simplified black body models. Nevertheless there are a number of other parameters entering the GCMs and these need to be varied within their errors to give a true error estimate for each curve coming out of the models.
All the rest is like discussing the number of angels on the head of a pin.

anna v
September 12, 2009 11:19 pm

repeat, correct emphasis
Joel,
I have no doubt that by construction the models and old runs if one looks at them with a lens will show vairations since the end product depends on many input equations.
The facts are:
1) the models chose either to smooth the bumps or chose runs with no bumps to give to the IPCC
2) The IPCC took these modeler estimates at face value as if they were statistical variations and made an average
3) It presented this average as written in stone ( science settled)
4) and most important, it pushed a political taxing agenda based on these plots back in 2007
By navel gazing the various runs what is happening is, the game rules are changed continually ( the science not settled). But also it demonstrates in practice the cavalier fashion these runs have been used, with no error bars for the normal scientists to be able to judge coherence and meaning on a plot. I suspect, but cannot prove, that error bars put on the referenced plots would exceed the variations of bumps that are being pushed a proof of “natural variability” in models.
What do I mean by error propagation? I do not mean initial conditions of probability distributions.
I mean what a normal scientist/physicist means: Take all the input parameters and assign them their errors. Use a minimizing program that will vary the error bars of the input parameters and come out with a chi square per degree of freedom for the given curve and an error bar for the given curve ( temperature).
From the simple model in junkscience.com, I thought that albedo was a parameter in the GCMs. You cleared that up for me, that it is an output in the GCMs, contrary to simplified black body models. Nevertheless there are a number of other parameters entering the GCMs and these need to be varied within their errors to give a true error estimate for each curve coming out of the models.
All the rest is like discussing the number of angels on the head of a pin.

September 12, 2009 11:41 pm

It is one thing to say that a few climate scientists might write a paper or run a blog in response to “skeptics”. It is another to suggest that they are somehow markedly modifying the physics in their climate models.
Of course they are. They have to. That is the only way they can keep producing relevant models in accordance with previously unknown or unaccountable variations in the climate. They did changed the physics of the models to account for better understanding of the nature of aerosols. Now that scientists are realizing that oceanic phenomenon such as ENSO and PDO affect climate more than originally given credit (note that this paper was never mentioned in the press, and I didn’t see RC or Tamino try and discredit it… they simply ignored it), now that the recognize that convection currents in the ocean may not behave in the ways we assumed, now that there is increased focus on other solar phenomenon instead of singling out only TSI that you often will only see on WUWT. Of course they change the physics. Not to do so would make them completely irrelevant.

Phlogiston
September 13, 2009 12:41 am

Dear WUWT
I have just copied the NCDC global temperature records from their website (ftp://ftp.ncdc.noaa.gov/pub/data/anomalies/monthly.land_ocean.90S.90N.df_1901-2000mean.dat) into Microsoft Excel. I took the global monthly land and ocean combined. Then I simply made a xy plot of the most recent 452 months – going back to about the start of the 1970s up to July 2009. Then I fitted a 5-order polynomial. The resulting equation was:
y = -9.2274E-13×5 + 9.7506E-10×4 – 3.6526E-07×3 + 5.8643E-05×2 – 2.4672E-03x + 4.7780E-02
R² = 7.0417E-01
This shows a distinct downturn in the last 4-5 years starting 2004-5. It would appear to be a straightforward interpretation of the data that global temperatures have inflected downwards, as described by the first term, -9.2274E-13 x^5. No doubt this will be attacked as naive and selective, but it seems real enough.

Graeme Rodaughan
September 13, 2009 12:46 am

Fred Lightfoot (02:44:03) :
….
Now we get politicians (failed lawyers) offering mega $ for research to ”prove” that us humans are in charge of the climate, if these 25-39 IQ ”humans” went and experienced the world, (not visiting the local Hilton) and realized how big our planet is and how small the human presence is we would not be trying to get milk from butterflies.

Brilliant.

September 13, 2009 12:56 am

Hi Joel
I think we both had huge fun with my attached graph earlier in the year.
The CET records show the LIA and subsequent warm periods that were around as warm as today.
Looking at the figures where 280ppm is a constant co2 factor;
http://cadenzapress.co.uk/download/beck_mencken.xls
It appears that natural variability occurs without any help from enhanced co2 levels-The objective observer would perhaps remark that;
a) Either co2 doesn’t seem to have much to do with anything and natural variability is the over riding factor (as surely Vicky Pope of the Met office admitted)
OR
b) There are co2 plots missing that go up and down as temperatures change. The gold dots represent the historic co2 plots from Ernst Beck.
I am sure you are bored with this subject but I would be interested in comments from others here about the scenarios I pose.
tonyb

Stefan
September 13, 2009 2:39 am

It is clear AGW theory is not disprovable using temperature data in the next 20 years.
That also means AGW theory has no track record to determine whether it should be trusted.
If the models were made right, they should give us useful predictions, but we won’t know if they are right until the decades have ticked by. People say they don’t have several Earths to test, so they built models. Well it doesn’t get you away from the problem that you need several Earths to test your models anway. But we only have one Earth. This undermines the whole enterprise.
It is not a scientific question. People simply have to make a judgement, do they trust the models or not? You can’t answer this scientifically, you have to answer it with wisdom and intuition. I haven’t read a single argument that can answer it scientifically. It is a question of wisdom.
For me today, only fools believe they’ve settled a prediction 50 years out about climate.
Please excuse my tone, but after all this time hearing about AGW, I’m getting bored with the lack of progress from that field on whether the threat is anywhere near as big, or believable, as we had been told.

Perry
September 13, 2009 3:37 am

Britain’s P.M. is giving cause for concern.
http://order-order.com/
It is possible now to understand why UK ZaNuLabour politicians cannot grasp the reality of global cooling. Their leader is barking.

anna v
September 13, 2009 4:41 am

TonyB (00:56:59) :
I had trouble seeing the chart, it was offscreen mostly with my version of exel (old).
I vote for a).
The up and down coincidences where they happen can be fortuitous for the time scales seen.
Of course there should be some effect of CO2.Maybe we need CO2 measurements exactly where temperature measurements are taken to see any strong correlation.
Take insulation: If half the house is insulated the insulation effect will be strong where it exists, even though it will be reflected in the average temperature of the whole house.

anna v
September 13, 2009 4:42 am

p.s.
come to think of it, CO2 is probably part of the UHI effect.

RR Kampen
September 13, 2009 5:49 am

Paul Vaughan (20:46:56) :
“RR Kampen (15:12:15) & RR Kampen (15:11:05) “Untenable? Maybe, but you can’t prove it. […] I’m sorry. The data are available, like a try? […] Snowball in hell. The data pass all tests for randomness.”
Any bright Stat 101 student can easily demonstrate a lack of random scatter in the residuals plots.”

If it is so easy, don’t talk, shoot! Please demonstrate!! You cannot. The Dutch have tried, end of story. The data pass all tests for randomness. As a mathematician ànd meteorologist I tried to make the dream of regularity and prediction come true myself, for a dumb twenty years or so.
The data are simply Poisson-, almost Gaussian distributed around the average except for skew caused by the recent trend.

Joel Shore
September 13, 2009 7:09 am

Phlogiston says:

Then I fitted a 5-order polynomial.

No doubt this will be attacked as naive and selective, but it seems real enough.

What is real enough is that you are just fitting to noise. If you actually computed error bars in the coefficients that you came up with, it would show this. The reason that scientists fit just to a linear trend line is not that one expects it to be perfectly linear but rather that one does not have good enough data to do anything more.

Joel Shore
September 13, 2009 7:27 am

TonyB:
(1) It is difficult to make global conclusions from a single temperature record in central England.
(2) That said, you are incorrect in your analysis of the CET record. While it may look like some peak years during some other times were as high as now, the difference is that in those cases there were nearby years that were much cooler whereas that has not been true for the latest data. So, as tamino shows here http://tamino.wordpress.com/2008/04/28/central-england-temperature/ , when you smooth the data, you find that the current warming is without precedent in the record.
(3) No scientist takes Beck’s paper seriously for several reasons: (a) There is no reason to believe that the CO2 measurements from the 1800s and early 1900s were accurate enough or taken in regions uncontaminated enough to reflect the true values for CO2 levels. You can see this just from the spread in the data and, in fact, the curve Beck tries to draw through the data still misses a lot of the points by quite a bit. (b) Believing Beck requires believing that the CO2 levels went up-and-down like crazy until we started measuring it by a new method at Mauna Lao after which it miraculously settled down. (c) Such wild ups-and-downs can not be reconciled with our understanding of the carbon cycle. (d) It disagrees with the values obtained from ice cores and although the ice core data does average over several years (decades, I think), one should still see more variation even smoothed over such times if Beck is correct (especially assuming that CO2 has generally varied up-and-down like this over the centuries).

September 13, 2009 9:45 am

Joel Shore (07:27:19) :
you find that the current warming is without precedent in the record.
Defining climate trend as a 30-yr trend one can plot the CET trends for a sliding 30-yr window:
http://www.leif.org/research/CET1.png
The current warming is clearly not unprecedented. Such swings occur regularly.

Editor
September 13, 2009 10:28 am

While rummaging around looking for a piece of information I found this statement from Ken Tapping back in April 2008:
http://solarscience.auditblogs.com/2008/04/22/ken-tapping-the-current-solar-minimum/
It’s not Dr. Tapping’s statement that is so much of interest (he was certainly not alone in his judgment) but the tenor of the comments that accompanied the article…
Not a big deal, just interesting.

Sandy
September 13, 2009 10:39 am

” Such wild ups-and-downs can not be reconciled with our understanding of the carbon cycle. ”
Excellent!! Data doesn’t fit model so ignore data.
Tamino answers challenges by using different datasets and bluster, why do people respect him? Don’t they look at what he’s saying?

Ron de Haan
September 13, 2009 10:50 am
September 13, 2009 11:40 am

Joel/ Leif/ Anna
Joel
We are looking at huge variations (without high levels of co2) that demonstrate very warm and very cold temperatures. However, don’t forget they are from the Little Ice age period! Yet, despite that, temperature profiles and slopes are little changed to our current ‘superheated’ world. Many of the mean average temperatures are dragged down by extremely cold winters, yet even so many of our warm records still come from the 18th/19th century.
If we could extend the graph back 600 years the temperatures would be higher than now, and would illustrate even better the hypothesis that either co2 has little effect on the natural variabilty, or that the co2 record is wrong and we are missing co2 peaks and troughs. I am happy to agree to either scenario 🙂
I would remind you that Britain enacted the factories Act over 130 years ago, setting legal limts for co2, and there are numerous accounts of it being measured prior to that for a variety of reasons. It was even incorporated into fiction (see Gaskills North and south)
Those enforcing the law through taking measurements knew enough to take the gas mantles in factories into consideration when making their calculations-there are numerous ‘clean’ measurements made from the arctic to the tops of mountains. Haldane had co2 analysis machines patented in the 1890’s and prior to that the chemical analysis became very accurate-Saussures measuents in 1830 were probably the first reasonably correct ones.
I know you have little regard for Beck’s work. So it would appear that you are prepared to believe Arrhenius was correct with his theory, but do not believe his contemporaries in the 19th century were able to measure co2 accurately enough to quantify that theory?
Why do you believe our forefathers-who invented modern science- are so clever in other respects but so dumb when it comes to co2?
Why do you believe that we weren’t even capable of measuring co2 until the start of the space age? Even Charles Keeling didn’t believe that, acknowledging in his autobiography that the old measurements were more accurate than he had at first believed (Although only the ones that fitted in with Callendars 1938 theory) Keeling was much influenced by Callendar in his early years when the former knew nothing whatsoever of climate science or of measuring co2. So you believe Keeling got it right from day 1, yet after 130 years of trying the older generation of scientists-including nobel winners-got it wrong every time?
Incidentally, don’t forget that even Callendar eventually believed he had got his Co2 theory wrong!
I would be 60% sure that Beck is correct. If he isn’t correct it must mean that natural variabilty is a much greater climate driver than co2-as Vicky Pope surely admitted?
I have always found you a fair minded person Joel, why don’t you pose your questions to Ernst Beck as I did? I found him very open.
Leif
I am grateful for the posting of your graph. I first came across it two years ago (on Climate Audit?) and have always wondered who produced it. Presumably you will be happy if I quote it elsewhere?
As the full CET data shows, it is untrue when warmists claim temperatures have risen further and faster than at any time in our history.
Anna
The graph was plotted in excel xls to allow each data point to reflect the measurement behind it (you let the mouse hover over the data point) You should be able to resize it by using the plus or minus buttons at the foot of the chart. However if you have an old version of excel you might find the jpeg version more useful-hope you can see it.
http://cadenzapress.co.uk/download/beck_mencken_hadley.jpg
I am happy with your vote however you cast it 🙂
tonyb

Joel Shore
September 13, 2009 12:06 pm

anna v says:

The facts are:
1) the models chose either to smooth the bumps or chose runs with no bumps to give to the IPCC
2) The IPCC took these modeler estimates at face value as if they were statistical variations and made an average
3) It presented this average as written in stone ( science settled)
4) and most important, it pushed a political taxing agenda based on these plots back in 2007

I have no clue what you are talking about at this point. I think your 4th point is the most important though: You don’t like the policy implications of the science and so that determines how you feel about the science itself.

I mean what a normal scientist/physicist means: Take all the input parameters and assign them their errors. Use a minimizing program that will vary the error bars of the input parameters and come out with a chi square per degree of freedom for the given curve and an error bar for the given curve ( temperature).

The climateprediction.net experiment did these sort of variations in the parameters. The IPCC had chosen instead to collect the results of the models from various different groups and show that as demonstrating roughly what the range of possibilities are. These results are also in pretty good agreement with more rigorous Bayesian probabilistic methods that are used to determine the probability of various values for the equilibrium climate sensitivity from empirical data as discussed in the IPCC AR4 report.
Sonicfrog: The point is that you made a claim that somehow significant internal variability wasn’t present in the models until recently when climate scientists became concerned that recent trends over some decadal or less timescales were flat or negative. That claim is manifestly wrong…and such variability can be seen even in Hansen’s model from the 1980s (as well as models shown in the TAR published in 2001). As for the Compo and Sardeshmukh, I don’t think it shows what you think it shows. What they show is if they fix the sea surface temperatures over the oceans (and hence about 70% of the planet), they can reproduce similar land surface temperatures to what has been seen. However, this begs the question of what has caused the sea surface temperatures to warm.

anna v
September 13, 2009 12:08 pm

Ron de Haan (10:50:28) :
Solar Heat Amplifier Discovered
http://theresilientearth.com/?q=content/atmospheric-solar-heat-amplifier-discovered

thanks for the link.
Add the galactic cosmic rays to the soup, at the plankton reaction to UV in producing clouds to the soup and CO2 contributions will take their proper share of observed warmings.

Joel Shore
September 13, 2009 12:19 pm

TonyB:

If we could extend the graph back 600 years the temperatures would be higher than now, and would illustrate even better the hypothesis that either co2 has little effect on the natural variabilty, or that the co2 record is wrong and we are missing co2 peaks and troughs. I am happy to agree to either scenario 🙂

TonyB, I don’t see what is particularly noteworthy about this statement, which amounts to saying that during a time period when CO2 was quite close to constant, the variations in temperature…at one particular site on the globe…were not dominated by whatever very small CO2 variations may have occurred. Is that a surprise to you (particularly recalling that internal variability becomes a larger and larger factor the smaller the region is over which you are looking)? If the temperatures had been so sensitive to such small changes in CO2, that would require a ridiculously high climate sensitivity.
And, with the recent climb in CO2, the average temperatures in Central England appear to have risen to unprecedented levels over the time period for which we have measurements. (What Leif’s plot shows is only that the RATE of Central England temperature rise is not completely unprecedented in that there was a similar rate one time previously quite early in the record.)

I know you have little regard for Beck’s work.

It’s not just me. The entire scientific community has little regard for his work for the reasons that I outlined in my previous post (and probably some others that I haven’t thought of).

Ron de Haan
September 13, 2009 12:20 pm

anna v (12:08:26) :
Ron de Haan (10:50:28) :
Solar Heat Amplifier Discovered
http://theresilientearth.com/?q=content/atmospheric-solar-heat-amplifier-discovered
“thanks for the link.
Add the galactic cosmic rays to the soup, at the plankton reaction to UV in producing clouds to the soup and CO2 contributions will take their proper share of observed warmings”.
You’re welcome Anna,
I think the soup will be served cold.

September 13, 2009 1:08 pm

Joel
You said
“And, with the recent climb in CO2, the average temperatures in Central England appear to have risen to unprecedented levels over the time period for which we have measurements. (What Leif’s plot shows is only that the RATE of Central England temperature rise is not completely unprecedented in that there was a similar rate one time previously quite early in the record.) ”
So with the recent steep climb in co2 temperatures are on average fractionally higher than they were during the Little Ice age but cooler than during the MWP? Is that supposed to be some sort of vindication of the theory?
You haven’t commented on the rest of the post-co2 measurement was well established-why should these clever people get this measurement wrong continually over so many years only for a complete amateur like Keeling to get it right first time?
Tonyb

September 13, 2009 1:25 pm

Joel.
It doesn’t matter what i think the paper says. It matters what the guys who wrote it thinks.

“Evidence is presented that the recent worldwide land warming has occurred largely in response to a worldwide warming of the oceans rather than as a direct response to increasing greenhouse gases (GHGs) over land… The oceans may themselves have warmed from a combination of natural and anthropogenic influences.”
“Several recent studies suggest that the observed SST variability may be misrepresented in the coupled models used in preparing the IPCC’s Fourth Assessment Report, with substantial errors on interannual and decadal scales (e.g., Shukla et al. 2006, DelSole, 2006; Newman 2007; Newman et al. 2008). There is a hint of an underestimation of simulated decadal SST variability even in the published IPCC Report (Hegerl et al. 2007, FAQ9.2 Figure 1). Given these and other misrepresentations of natural oceanic variability on decadal scales (e.g., Zhang and McPhaden 2006), a role for natural causes of at least some of the recent oceanic warming should not be ruled out.”

Ron de Haan
September 13, 2009 2:41 pm
September 13, 2009 2:57 pm

As a non-scientist, the question I wonder about — presumably too general to be taken up by this particular essay — is how are scientists able to measure solar activity prior to the modern era? How do we know anything about solar activity — with any precision — during the Middle Ages?
And this is also the problem I had with the Global Warming theory when I first learned about it a couple decades ago. “Science” is such a recent activity in the grand scheme of things, in the long life of planet Earth.

Paul Vaughan
September 13, 2009 3:16 pm

RR Kampen (05:49:40) “[…] end of story. The data pass all tests for randomness.”
Let me point out exactly where you are going wrong:
1) “end of story” — We’re nowhere near “end of story” in the climate discussion.
2) “The data pass all tests for randomness.” Tests for randomness are based on assumptions.
Suggested: See beyond your assumptions.

rbateman
September 13, 2009 3:18 pm

All of this assumes that the fire in the stove is unchanging.
It assumes the damper remains stationary, and that the front door isn’t left wide open.
It assumes that the weather outside is unchanging.

rbateman
September 13, 2009 3:37 pm

annsnewfriend (14:57:51) :
Millions are asking themselves the same thing.
Many millions more are soon going to be asking those questions.

tallbloke
September 13, 2009 4:06 pm

Joel Shore (13:58:49) :
And, by the way, it is important to note that if you look at the global temperature data, you can also find 10-year periods when the trend was a lot greater than the 0.17 C / decade, again because of the noise.

Can you point those out on this graph (or another of your own choosing) please Joel, because I can’t see any.
http://www.woodfortrees.org/plot/hadcrut3vgl/mean:120
As for whether some of the late 20th century warming could be attributed to PDO or other such long term oceanic cycle, I remain quite skeptical although I suppose further time will tell.
What would you attribute the warming from 1910-1940 to?
And the cooling from 1940-1970?
These are not ten year random walks, but 30 year periods, so something else is going on. Consigning everything apart from co2 to ‘noise’ is not tenable. You seem to be deluding yourself.

Phil.
September 13, 2009 5:29 pm

TonyB (13:08:05) :
You haven’t commented on the rest of the post-co2 measurement was well established-why should these clever people get this measurement wrong continually over so many years only for a complete amateur like Keeling to get it right first time?

Location, location, location! 😉

Phlogiston
September 13, 2009 6:01 pm

Joel Shore
Thanks for your feedback on the 5-order polynomial entry. I kind of expected this as a justifiable criticism.
One of my favourite scientists, (late) Dr Patricia Durbin a US radiobiologist, once said ” the scientific method exists to make up for the limitations of intuition”. However truth is sometimes found in the tension between opposites and it is also true that intuition exist to redress the limitations of the scientific method.
Its getting colder, trust me.

Joel Shore
September 13, 2009 7:05 pm

tallbloke says:

Can you point those out on this graph (or another of your own choosing) please Joel, because I can’t see any.
http://www.woodfortrees.org/plot/hadcrut3vgl/mean:120

See my post of 14:52:48 on 12 Sept for one example (+0.430 C/decade for 1974-1983). There is also a trend of +0.360 C/decade fore 1992 to 2001. (I’m surprised that you find my statement controversial since if the average slope is +0.17 C/decade over the whole 30+ year period and we know there are decade-long periods of significant lower slope, there are also going to be decade-long periods with higher slope. Saying otherwise is like saying that everyone is above average.)
Furthermore, I am not sure how you are expecting to see what I talked about on the graph that you showed. What you plotted is the temperature with a running average over 120 months or 10 years. What I am talking about is taking the yearly global temperature (so, roughly speaking, the temperature averaged over 12 months http://www.woodfortrees.org/plot/hadcrut3vgl/from:1970/to:2100/mean:12 ) and looking at the least-squares trendlines over various 10-year periods. I think you can see from this how the period 1992-2001 and 1974-1983 would have had above-average slopes, and how 1987-1996 and 1998-2007 would have had below-average slopes.

What would you attribute the warming from 1910-1940 to?
And the cooling from 1940-1970?

The warming from 1910 to 1940 is generally attributed to a variety of factors including some increase in solar irradiance, a lack of major volcanic eruptions, the rise in CO2 and other greenhouse gas levels that was already occurring, and perhaps also some internal variability. The cooling from 1940 to 1970 (which was fairly modest) is generally attributed mostly to an increase in aerosol pollutants (and this is supported by the fact that the cooling was more pronounced in the Northern Hemisphere) with some contribution from volcanic eruptions.
Tonyb says:

So with the recent steep climb in co2 temperatures are on average fractionally higher than they were during the Little Ice age but cooler than during the MWP? Is that supposed to be some sort of vindication of the theory?

We don’t have any direct measure of their value during the MWP. And, as I noted before, I don’t consider the temperature record from one location a vindication of anything. However, it is certainly consistent with the theory.

You haven’t commented on the rest of the post-co2 measurement was well established-why should these clever people get this measurement wrong continually over so many years only for a complete amateur like Keeling to get it right first time?

Science advances. I don’t know what part of the problem is attributable to the measurement methods and what part is attributable to where they took the measurements.
Why do you think that CO2 underwent violent fluctuations that somehow weren’t captured even in an average sense in the ice core data…and that these fluctuations settled down to a nice steady rise right around when Keeling started his measurements?

Joel Shore
September 13, 2009 7:29 pm

tallbloke,
For completeness, here is a full plot of the HADCRUT3 data from 1970 to the present also showing the linear trend over that full time period and the linear trends over the various decadal time periods that I mentioned: http://www.woodfortrees.org/plot/hadcrut3vgl/from:1970/to:2010/mean:12/plot/hadcrut3vgl/from:1970/to:2010/trend/plot/hadcrut3vgl/from:1992/to:2001/trend/plot/hadcrut3vgl/from:1998/to:2007/trend/plot/hadcrut3vgl/from:1987/to:1996/trend/plot/hadcrut3vgl/from:1974/to:1983/trend

anna v
September 13, 2009 9:07 pm

I will recapitulate why I think Beck may have a point and why the whole CO2 question has to be rethought from the beginning:
AIRS data show that even at 6000 meters CO2 is not well mixed: global attribution of measurements on top of mountains depends crucially on the well mixed hypothesis.
Beck’s measurement compilations show that CO2 levels depend crucially on location, something that is logical for a gas that has a surface source of many origins.
There are very few sources where ice core records were taken. Even ignoring the several serious critiques of ice core record measurements and possibility of diffusion of gases etc, the records would show the level of CO2 in a CO2 poor atmosphere, particularly as cold ocean is close to cold icebergs and cold ocean is a great eater of CO2. As far as I am concerned CO2 from ice cores just shows the record of CO2 in the iceberg location from which it was taken.
The logic of taking a grid of locations for temperature measurements on the one hand and measuring CO2 in high places where gods should be worshiped evades me on the other, evades me. Why one global measurement should be on top of a few mountains and the other, as densely on surface I cannot fathom. The scientific method would require similar measurements for a rational cause and effect attribution. Example:
If I suspect that there is a heat leak from a box that should be insulated, I will not take an average measurement of heat in and out it, if I want to study it. I will go with a heat detector all around, marking heat leaks to increase insulation. CO2 versus temperature is on the first step, while claiming it is on the second.
CO2 is heavier than air, its green house effect is really effective in the low atmosphere where it has little time really to disperse from its sources . I would like to see modern measurements of CO2 all over the globe, and am waiting patiently for the Japanese surface data ( the US satellite which would have been doing the same broke up ).
Further, I resent climate scientists saying that “all scientists do this or that”. There are thousands of scientists out here really questioning if the term “science” should be applied to climate studies.

anna v
September 13, 2009 9:52 pm

And here are the first data analyzed from IBUKi
http://www.jaxa.jp/press/2009/05/20090528_ibuki_e.html#at1
Note that it is from April, note that it confirms that the distribution is not well mixed. I also have my “doubts” of how much manipulation has gone on to confirm to orthodoxy in orders of magnitude. From what I knew of Japanese science thirty years ago, in my field, particle physics, there was great adherence to orthodoxy. We have to wait and see.
Obviously these measurements are not a boost to climate orthodoxy on CO2.

anna v
September 13, 2009 10:16 pm

p.s on the plot which I just googled
http://www.jaxa.jp/press/2009/05/20090528_ibuki_e.html#at1
It says : “column averaged dry air mole fraction”
how high a column?
Mauna Loa gives 386 at a very high level (2000 meters?) so the column should be broken up, and particularly, the last 300 or so meters should be given to have a real gauge and check on Beck’s compilation numbers.

savethesharks
September 13, 2009 10:22 pm

Joel Shore (19:05:40) : “The warming from 1910 to 1940 is generally attributed to a variety of factors including some increase in solar irradiance, a lack of major volcanic eruptions, the rise in CO2 and other greenhouse gas levels that was already occurring, and perhaps also some internal variability. The cooling from 1940 to 1970 (which was fairly modest) is generally attributed mostly to an increase in aerosol pollutants (and this is supported by the fact that the cooling was more pronounced in the Northern Hemisphere) with some contribution from volcanic eruptions.”
Are you blind?? These periods correlate with the oceanic multidecadal cycles which you fail to mention.
Chris
Norfolk, VA, USA

masonmart
September 13, 2009 11:51 pm

Joel, the Hadcrut figures are irrelevant almost because of the upward adjustments that they make and the impossibility of measuring a global temoperature, linear trends are also irrelevant as it can be clearly seen that current trend is down possibly for 15 years now when you take out the 1999 El Nino. It is all irrelevant of course because the argument is not whether there has been warming or cooling which there is now and always has been but the contribution first of CO2 which is a tenuous or plainly incorrect link and the contribution of Anthropogenic CO2 which from everything I read is around 3% of total, an irrelevant component of what seems to be a minor climate driver. I’m still waiting to see how you square this particular circle. Do you have to wear blinkers to maintain your position?

kim
September 14, 2009 12:07 am

savethesharks 22:22:32
The vision of the oceanic oscillations running climate has offended him, so he has gouged out his eyes.
=========================================

Barry Foster
September 14, 2009 12:38 am

Will someone tell me if this is just me, but as I said above, here in England the Met Office issues its forecast that, to me, are just so ‘covering all bases’ as to make it completely worthless. To prove my point, here is the Wednesday forecast for my area in England issued today…
“Largely dry with variable amounts of cloud and some sunshine at times. A few showers are possible on Wednesday. Windy at times.”
Now, it would appear to me that no matter what happens (short of snow) on Wednesday, they covered it – so they cannot lose. Am I right? Is it me?

tallbloke
September 14, 2009 12:44 am

Joel Shore (19:29:16) :
tallbloke,
For completeness, here is a full plot of the HADCRUT3 data from 1970 to the present also showing the linear trend over that full time period and the linear trends over the various decadal time periods that I mentioned: http://www.woodfortrees.org/plot/hadcrut3vgl/from:1970/to:2010/mean:12/plot/hadcrut3vgl/from:1970/to:2010/trend/plot/hadcrut3vgl/from:1992/to:2001/trend/plot/hadcrut3vgl/from:1998/to:2007/trend/plot/hadcrut3vgl/from:1987/to:1996/trend/plot/hadcrut3vgl/from:1974/to:1983/trend

Hi Joel,
so the two periods in the record you show where there was a warming in excess of 1.7C/decade are from 1974-1984 and 1992-2002. Lets look at these.
The first goes from the trough following an el nino event at the end of a thirty year cooling period to the peak of the 1983 el nino.
The second includes the big el nino spike of 1998.
But when we skeptics include the big el nino spike of 1998 in a graph showing a 11 year decline in temps to the present, we get accused of ‘cherry picking’. Seems like a double standard to me.
You chose not to include the thirty year cooling 1940-1970 in your graph, and you also chose not to answer my query about what caused it which I asked in the same post you are replying to. Why is that?
And what about the thirty year increase in temps from 1910 to 1940 I also asked about?
If you are skeptical about longer term ocean oscillations, what natural factors do you think could have caused these long term fluctuations which can’t be accounted for by ‘random noise’?

September 14, 2009 1:41 am

Anna and Joel
Anna said
“Beck’s measurement compilations show that CO2 levels depend crucially on location, something that is logical for a gas that has a surface source of many origins.”
I absolutely agree. The newest thread on co2 hotspots seems to bear this out. Becks measurements (not all of which can be verified and are therefore disarded) are of their specific time and place. They were taken from the arctic to the oceans, from the mountains to inside factories. Those compiling them had considerable expertise developed over 130 years. Yet Joel believes they were all wrong and Mr Keelings device-invented from scratch with no prior knowledge of the subject-is the source of all knowledge.
A surprising thing to say especially as Keeling himself admits to the accuracy of these older studies.
Joel
“Why do you think that CO2 underwent violent fluctuations that somehow weren’t captured even in an average sense in the ice core data…and that these fluctuations settled down to a nice steady rise right around when Keeling started his measurements?”
I dont know. However the natural flux (which is the overwhelming component of co2 is said to be 90gt. Very slight changes in the natural flux will mean considerable fluctuations in what should be measured, which means a steady consistent rise seems unlikely.
Incidentally I read Taminos post that you linked to earlier and it is not his finest hour. He knows little as to how CET was constructed or amended and conveniently discards many of the older warm periods-these are authenticated by separate ‘anecdotal’ references, crop records etc.
His comments about theremometers-used to support his theories are also way off beam. This is an article I wrote on the subject, sorry about its length:
” That thermometers were primitive and only accurate from 1850 onwards is a popular misconception;
This from Wikipedia.
“The thermometer was invented in the sixteenth century, but it is disputed who the inventor was. The claims of Santorio are supported by Borelli and Malpighi, while the title of Cornelius Drebbel is considered undoubted by Boerhaave. Galileo’s air thermometer, made before 1597, was the foundation of accurate thermometry. Galileo also invented the alcohol thermometer about 1611 or 1612. Spirit thermometers were made for the Accademia del Cimento, and described in the Memoirs of that academy. When the academy was dissolved by order of the Pope, some of these thermometers were packed away in a box, and were not discovered until early in the nineteenth century. Robert Hooke describes the manufacture and graduation of thermometers in his “Micrographia” (1665).”
The next two links refers to the invention of the ‘accurate’ Galileo thermometer in 1597
http://www.thermometershop.co.uk/more_about____.htm#how
http://en.wikipedia.org/wiki/Galileo_thermometer
This is the “Micrographia” referred to above:
http://www.gutenberg.org/files/15491/15491-h/15491-h.htm
The thermometer- or thermoscope- became all the rage in Europe from the 1620’s. The Royal Society created the ‘standard’ thermometer in 1663, described in detail here
http://www.jstor.org/pss/227641
This standard was the basis for all subsequent thermometer technology and followed on from the original written instructions on how to calibrate thermometers made in 1659, and which was formalised as referenced above in 1665.
The Hadley CET records derive from 1659 following this new calibration standard, although the Fahrenheit scale did not come about until 1724, as linked here.
http://en.wikipedia.org/wiki/Daniel_Gabriel_Fahrenheit
The original measurements from 1659 were converted to the Fahrenheit scale by Manley, who also adjusted the readings to take into account the transition from the Julian calendar introduced by Julius Caesar in 45BC to the Gregorian calendar. Manley considered the readings to be perfectly accurate to around a quarter to half a degree in the Fahrenheit equivalent. It is thought the Galileo thermometers were accurate to a little more than half of a degree of the Fahreheit equivalent.
As might be expected Pepys got his hands on one of the new thermoscopes. This text was written as a footnote in the 1893 Wheatley transcription of Pepys diary and is the one Wikipedia have used in the first link given above. It refers to 23 March 1663
http://www.pepys.info/1663/1663mar.html
The instrument referenced above was given to Pepys in 1663 by Greatorex who had been advised by Robert Boyle. This gift is referenced here.
http://books.google.co.uk/books?id=jeOMfpYMOtYC&pg=PA267&lpg=PA267&dq=pepys+thermometer&source=web&ots=aBavR_-kac&sig=GA1EQl04anW85TuIEwrdZZ2iJAc&hl=en&sa=X&oi=book_result&resnum=10&ct=result#PPA267,M1
So from around the year 1600, measurements of uncalibrated thermometers were being taken, which became increasingly accurate as the technology improved. By 1659 the measurements were being calibrated to some degree of accuracy, and as the instruments were expensive were generally being read by trained people who handled them carefully.
During the 1700’s there was a vogue for placing thermometers in unheated north facing rooms so temperatures could be taken in comfort, but this was seen as a backward ‘country’ habit which was frowned on by those with a more scientific approach.
The measurements taken under proper conditions from 1660 were accurate to levels not surpassed until well into the 1900’s. The thermometers used in ‘global temperatures from 1850’ were often of poor quality, uncalibrated, placed in inappropriate positions (such as in full sun) and read by people who had no training.
GS Callendar complains in his notebooks about the variability of these readings from 1850 when there were less than 100 global stations- of whom around half had much credibility. He restricted his investigations of his belief in rising temperatures caused by man to as few as 200 stations worldwide in 1936-38, during his investigation for his thesis that rising levels of co2 were driving global warming, which resulted in his seminal paper about CO2 in 1938.”
I do agree with you about the scientific worlds dismissal of Becks work and he has said before he regrets the way in which he naively introduced them which reduced their credibilty. However the actual details of the readings are fascinating and I have followed up the circumstances of around fifty of them. I do not think they should be dismissed out of hand. Measurements taken at the time by qualified people seems to me much more capable of producing accurate co2 readings of their precise location than ice core proxies requiring complicated interpretations.
tonyb

September 14, 2009 3:43 am

Joel Shore (19:05:40) :
Although, I broadly agree with most of your earlier posts, this is is speculative drivel.
The warming from 1910 to 1940 is generally attributed to a variety of factors including some increase in solar irradiance, a lack of major volcanic eruptions, the rise in CO2 and other greenhouse gas levels that was already occurring, and perhaps also some internal variability. The cooling from 1940 to 1970 (which was fairly modest) is generally attributed mostly to an increase in aerosol pollutants (and this is supported by the fact that the cooling was more pronounced in the Northern Hemisphere) with some contribution from volcanic eruptions.
I suspect even you are not convinced since you use the term “generally attributed” twice. Let’s look at factors you cite for the 1910-40 warming
1. “some” solar irradiance
Leif may have something to say about that but whatever there was no decrease in solar irradiance after 1940.
2. a lack of major volcanic eruptions,
Interesting that a lack of something produces such a sustained positive forcing over several decades. However there were major eruptions in 1883 and 1902. There has not been a major eruption for since 1991 (Pinatubo) – is the warming since then related to “a lack of volcanic eruptions”?
3. perhaps also some internal variability
Love it. What does this mean? Is this the ‘catch all’ in case the solar/volcano stuff goes belly up. The IPCC has undertaken rigorous “Attribution and Detection” studies which supposedly show that the late 20th century warming can only be explained by including an increase in ghg concentrations. It now appears that there may also be some “internal variability – perhaps”.
The explanation for the 1940-70 cooling is worse.
1. There was NO increase in aerosol pollutants in the 1940s – show me the data. (**see below)
2. To explain he temperature decline between 1945 and 1951, the aerosol increase would have to be on a phenomenal scale and sustained over many years. Remember the aerosols would not only have to induce a cooling effect they would also need to reverse a strong warming trend. Aerosols are not like CO2. They are short-lived in the atmosphere. Industrial (tropospheric) aerosols are nowhere near as plentiful or effective as volcanic (stratospheric) aerosols.
3. The effect of aerosols is regionally specific. There is some dispersal but they get “rained out” fairly quickly.
4. Between 1940 and 1970 – the Arctic cooled at 4 times the rate of the NH in general. How did this happen? See GISS zonal data. Note that the arctic also warmed at 4 times the rate of the NH in the 1910-40 period (again see GISS zonal data). And guess what happened between 1970 and 2000 ……?
5. Aerosols which do eventually find their way to the arctic actually produce warming due to the arctic haze effect ( http://en.wikipedia.org/wiki/Arctic_haze )
6. If aerosols did cool the arctic there should be a strong seasonal signal, i.e. aerosols can only reflect sunlight when the sun is shining. Between Sept and March their effect would be non-existent.
** Re: aerosol data. There is very little before ~1970. However we can probably get a rough estimate of any change in aerosol production from proxy data – namely CO2 emissions. Between 1920 and 1950 global CO2 emissions were broadly flat.
In a nutshell. No-one can explain the the early 20th century warming or mid-20th century cooling – and probably not the late 20th century warming either. Internal variability, including ocean oscillations, is probably the most likely candidate for the fluctuations with CO2 a possible candidate for the weak underlying trend.

September 14, 2009 4:08 am

It is some what ironic that the upcoming global warming “climate change” conference will be held in Copenhagen, Denmark. Not only because many of the contributors in the climate debate are from Denmark, of which some contribute to this blog. But, also because Denmark lost its eastern part in the war of 1658 as a result of the cold winter of 1657-1658 and therefore Denmark became a direct victim of natural climate change during the Maunder Minimum.
As has been mentioned here the Swedes were able to march over the frozen ice and lay siege to Copenhagen in 1658 and as a result, what is now southern Sweden had to be given over to Sweden after the following peace deal in Roskilde.
This is a short history of what happened. The Swedish king invaded and concurred most of Poland. The Poles which naturally didn’t want to become part of the Swedish kingdom, revolted and started a guerilla war uprising.
The Danish king, while the Swedes were bug down in Poland, saw this as an opportunity for reducing the growing Swedish power in the Baltic and declared war.
What happen then was that the Swedish army broke up from Poland and invaded Denmark from the south, from Germany. They invaded and occupied Jutland as this is a peninsula directly connected to Germany.
They didn’t have access to transportation to move the army and invade Zealand, the island on which Copenhagen is located. Because the water way over the Belts froze they were able to march over to Zealand where they planned to lay siege on the capital. The Danes had no alternative, than to ask for peace.

Richard S Courtney
September 14, 2009 4:34 am

Anna V:
I write to support your comments concerning the attempts to dispute Beck’s data merely because it does not fit a paradigm.
Please see one of our 2005 papers for a much more complete assessment of what is and what is not known about the causes of changes to atmospheric carbon dioxide concentration:
ref. Rorsch A, Courtney RS & Thoenes D, ‘The Interaction of Climate Change and the Carbon Dioxide Cycle’ E&E v16no2 (2005).
Concerning the specific question of whether or not Beck’s data could be correct. Yes, it could.
There is much more that is not known than is known about the carbon cycle. Investigation of the unknowns is inhibited by a completely unjustified certainty that the carbon cycle is being significantly affected by the anthropogenic emission of carbon dioxide. And the fact is that the uncertainties in the magnitudes of the fluxes of the carbon cycle are so large that almost anything can atributed as being the cause of the recent rise in atmospheric carbon dioxide concentration. And the only dispute of this is by comparison with ice core data which purport to show little variation of atmospheric carbon dioxide at levels all below ~280 ppmv over many recent millenia. But that ice core data does not agree with stomata data which indicate much greater variability and much higher levels (up to 400 ppmv) over the same time periods.
During each year the oceans release much, much more carbon dioxide than human activity. They release it in the summer and take it back during the winter. So, an increase to atmospheric carbon dioxide concentration would result from lowered oceanic emission and/or sequestration. And altered oceanic emission and sequestration would occur when the temperature and especially the pH of the ocean surface layer varies. Indeed, the temperature effect as a result ocean upwelling is an observed effect of ENSO.
Hence, it is not strictly true that there needs to be additional oceanic emission to increase atmospheric carbon dioxide concentration because reduced oceanic sequestration would do it, too. And the cold water that upwells has a pH affected by the history of its travel around the globe (that has taken centuries).
Quirk’s analysis of the geographical distribution of atmospheric carbon isotopes agrees with this interpretation.
Furthermore, this interpretation provides an explanation of Beck’s data which indicates large, rapid fluctuations in atmospheric carbon dioxide that were simultaneous at several localities in the nineteenth century. The pH of cold ocean waters may have been altered by transient volcanism at sea bottom centuries ago, their pH affected atmospheric carbon dioxide concentration when those waters were returned to the surface by the thermohaline circulation.
I repeat for emphasis that there is much more that is not known than is known about the carbon cycle. Investigation of the unknowns is inhibited by a completely unjustified certainty that the carbon cycle is being significantly affected by the anthropogenic emission of carbon dioxide. And the uncertainties in the magnitudes of the fluxes of the carbon cycle are so large that almost anything can atributed as being the cause of the recent rise in atmospheric carbon dioxide concentration. This is covered in our paper that I reference above. The pertinent information is as follows.
Atmospheric CO2 rises and falls each year by much, much more than the increase to CO2 in the air over a year. Therefore, the annual increase is the residual of the rise and fall each year.
The amount of CO2 emitted from oceans and biosphere is an order of magnitude greater than the increase to CO2 in the air each year. And the amount of CO2 sequestered by the oceans and biosphere is an order of magnitude greater than the increase to CO2 in the air each year.
Hence, any small change in the behaviour of the emitting and/or sequestering parts of the carbon cycle results in a change to the CO2 in the air.
The accumulation rate of CO2 in the atmosphere is equal to almost half the human emission. The human emission is about 6.5 GtC/year but the accumulation rate is about 3 GtC/year (these figures are very conservative). However, this does not mean that half the human emission accumulates in the atmosphere, as is often stated. The system does not ‘know’ where an emitted CO2 molecule originated and there are several CO2 flows in and out of the atmosphere that are much larger than the human emission. The total CO2 flow into the atmosphere is at least 156.5 GtC/year (it is probably much more, but I am being very, very conservative) with 150 Gt of this being from natural origin and 6.5 Gt from human origin. So, on the average, about 2% of all emissions accumulate.
This is a small change to the atmosphere. And it is the observed change to a single sensitive part of the carbon cycle.
The carbon in the air is less than 2% of the carbon flowing between all the parts of the carbon cycle. And the recent increase to the carbon in the atmosphere is less than a third of that less than 2%. Furthermore, the annual flow of carbon into the atmosphere from the burning of fossil fuels is less than 0.02% of the carbon flowing around the carbon cycle.
It is not obvious that so small an addition to the carbon cycle is certain to disrupt the system because no other activity in nature is so constant that it only varies by less than +/- 0.02% per year.
There are many possible reasons why such small changes could be expected to any natural system. And the uncertainties (i.e. inherent errors in the estimates) of the flows between parts of the carbon cycle are much greater than the observed changes to atmospheric CO2.
Thus, there are several methods that can be used to model the system. Our paper provides six such models with three of them assuming a significant anthropogenic contribution to the cause and the other three assuming no significant anthropogenic contribution to the cause. Each of our models matches the empirical data without use of any ‘fiddle-factor’ such as the ‘5-year smoothing’ the IPCC uses to get its model to agree with the empirical data.
So, whichever of our models one chooses to champion then there is a 5:1 probability that the choice is wrong. And other models are probably also possible.
Also, the models each give a different indication of future atmospheric carbon dioxide concentration for the same future anthropogenic emission of carbon dioxide.
Data that fits all the possible causes is not evidence for the true cause. Data that only fits the true cause would be evidence of the true cause.
But there is no data that only fits either an anthropogenic or a natural cause of the recent rise in atmospheric CO2 concentration. Hence, the only factual statements that can be made on the true cause are
(a) the recent rise in atmospheric CO2 concentration may have an anthropogenic cause, or a natural cause, or some combination of anthropogenic and natural causes,
but
(b) there is no evidence that the recent rise in atmospheric CO2 concentration has a mostly anthropogenic cause or a mostly natural cause.
Hence, it cannot be known what if any effect altering the anthropogenic emission of carbon dioxide will have on the future atmospheric CO2 concentration.
I presented a summary of that work at Heartland-1. The paper is dry as dust but I tried to present it in an entertaining way. There is an audio and a video of that presentation on the web but neither shows the PP illustrations and the video is very poor quality.
To hear the audio go to
http://www.heartland.org/events/NewYork08/newyork2008-audio.html
Then scroll down to
Tuesday, March 4, 2008
8:45 – 10:15 a.m.
Track 2: Climatology
Then click on my name.
I hope this is useful addition to the discussion.
Richard

September 14, 2009 5:42 am

A thousand little people were seen melting away in the sweltering heat at Berlin’s Gendarmenmarkt Square – and there was no saving them, because these little guys were sculptures made out of ice by Brazilian artist, Nele Azevedo.
The Melting Men exhibit is part of the Minimum Monument movement, started by the artist in 2005. However, her first few exhibits, which comprised only of single ice sculptures, was to protest against big monuments, which honor only heroes.
While she still does it to highlight her stance against large monuments, global warming activists have found them to be the ideal icons to highlight our Earth’s plight!
The two have found a perfect way to blend their agendas by holding their exhibitions in large city squares with monuments. The artist has come a long way since her first solitary ice sculpture – her latest exhibits comprise of hundreds of little ice sculptures all gradually ‘dying’ in the sun.
Source: – http://lifeofearth.org/2009/09/ice-sculptures-highlight-global-warming.html

RR Kampen
September 14, 2009 6:27 am

Re: Paul Vaughan (15:16:15) :
“Let me point out exactly where you are going wrong:
1) “end of story” — We’re nowhere near “end of story” in the climate discussion.”
That is both true and an entirely different subject. We were studying the random features of data.
2) ““The data pass all tests for randomness.” Tests for randomness are based on assumptions.”
Or by definitions e.g. of what randomness is. Of course tests are based on assumptions and definitions. Without them there is no test!
“Suggested: See beyond your assumptions.”
What then? Will I operate forever without assuming anything? End of discussion: the if…then-construction forbidden (remember: after ‘if’ comes an assumption).
So sorry, I will remain locked up in assumptions and will never be able to talk with the angels.

September 14, 2009 8:17 am

Richard S Courtney.
Those of us who battle to say that Becks measurements should not be ignored have an uphill task. People seem to think that co2 measurements sprang fuilly formed from Charles Keeling in 1957-as I have tried to demonstrate in earlier posts measuring co2 wa embedded in 19th century life.
Hopefully your words will give pause for thought to Joel and others to open their minds a little more.
tonyb

Richard S Courtney
September 14, 2009 8:50 am

Stefan:
You raise an important point. It pertains to Anthony Watts’ investigation of meteorological measurement stations, the different understandings of Svensmark and Svalgaard concerning solar effects on climate, and the above discussion of Beck’s data concerning historic atmospheric CO2 concentration.
You ask:
“This aspect of science has puzzled me. How can intelligent people come to different conclusions about the same data? Surely if different conclusions are available, nobody should be coming to any one conclusion. Rather, we should add the two as two possibilities.”
The answer is that a scientific conclusion is always an interpretation of the available data. And all scientific conclusions are valid in so far as they do not violate known physical laws. But all scientists are human beings and, therefore, they each have personal preference as to which interpretation they adopt for further study.
Indeed, an interpretation of available data remains a theory (n.b. not a fact) when all (or almost all) scientists agree that interpretation. And this induces the most acrimonious scientific disputes. For example, the phlogiston theory remained the main paradigm of combustion long after Lavoisier published his findings, and it was not abandoned until a generation of scientists had died of old age.
Simply, in the conduct of science, data tells nothing but interpretation of data provides conclusions. This is because data is only a tool to aid understanding of an idea.
Data on its own tells nothing about an idea being considered and/or the worth of the idea. This is simply demonstrated by the following three statements.
STATEMENT 1
See the graph at
http://www.cru.uea.ac.uk/cru/data/temperature/
STATEMENT 2
A process of global cooling began two decades ago and became established a decade ago. The temperature of the Southern Hemisphere reached a peek two decades ago and started to cool. This cooling spread to include the Northern hemisphere a decade ago when the process of global cooling became complete. This cooling process is not consistent with anthropogenic global warming (AGW) because the atmospheric carbon dioxide concentration has increased throughout that time.
See the graph at
http://www.cru.uea.ac.uk/cru/data/temperature/
STATEMENT 3
A process of global warming has existed since the start of the twentieth century. Variations in the trend of the warming have occurred and are known as weather. This trend is consistent with anthropogenic global warming (AGW) because the atmospheric carbon dioxide concentration has increased throughout that time.
See the graph at
http://www.cru.uea.ac.uk/cru/data/temperature/
Statement 1 is meaningless except to say that the HadCRUT3 data exists and to say where it can be seen. Statements 2 and 3 cite the same data (i.e. the same graph in the same reference) in support of mutually exclusive ideas (examples of the promotion of each of these ideas can be seen in above postings here).
So, data is only useful as support of ideas. This opens the ideas to debate and evaluation (e.g. by consideration of the pertinence, accuracy, precision and validity of the data), but the data (as cited in Statement 1) is worthless on its own.
Importantly, the ideas remain valid scientific conclusions supported by the data so long as they are not contradicted by physical laws and/or empirical data.
Therefore, AGW and the Svensmark Hypothesis are both valid scientific conclusions although they are mutually exclusive (as are Statements 1 and 2 above). The history of science is replete with similar examples (e.g. wave and particle theories of light, Steady Sate and Expanding Universe, etc.). As empirical evidence mounts one of the competing conclusions becomes rejected (by the additional evidence) and its competitor remains as an accepted theory until it, in its turn, is refuted by additional evidence (e.g. Newtonian and Einsteinian theories of gravity).
But a theory remains a valid conclusion from the data until additional data clearly refutes the theory. And many good scientists cannot bring themselves to abandon an idea they have cherished even when the idea is clearly contradicted by additional data; for example, many clung to the phlogiston theory long after the evidence of Lavoisier’s work, and many now cling to the AGW hypothesis despite the evidence of ‘the missing hot spot’.
I hope this clarifies the matter.
Richard

Joel Shore
September 14, 2009 9:53 am

tallbloke says:

But when we skeptics include the big el nino spike of 1998 in a graph showing a 11 year decline in temps to the present, we get accused of ‘cherry picking’. Seems like a double standard to me.

Okay, let me explain to you very clearly why it is not a double standard: The whole point that I was making is that decadal-long temperature trends can be vary by quite a bit. I admitted that there were 10-year periods with slopes quite a bit low of the ~30-year trendline and pointed out there were also 10-year periods with slopes considerably above the ~30year trendline. However, I did not tell you to ignore everything but the high slope decadal periods…and did not advocate using them to conclude that climate change is rapidly accelerating. Do you understand the difference now?
As for the 1910-1940 warming and the 1940-1970 cooling, I did address those in my post above (19:05:40 on 13 Sept 2009).
John Finn says:

In a nutshell. No-one can explain the the early 20th century warming or mid-20th century cooling – and probably not the late 20th century warming either.

You make lots of arguments as to why the effects that I mentioned can’t account for it. Yet it is true that the GCMs with these various effects included do a pretty good job reproducing these aspects of the temperature record. (They do tend to underestimate the early 20th century warming somewhat, although this may be due in part to the problems involving the SST measurements during WW II.) So, I don’t really see your arguments that it can’t be done as being very convincing. I admit that these attribution issues are not easy to prove (hence my wording about “generally attributed to…”) especially given the uncertainties in the aerosol concentrations and such.

Martin Mason
September 14, 2009 11:10 am

Joel, you know that the models predicting observed values has never happened unless they were programmed to do so. You also know that their ability to predict weather or climate more than a few days advance is weak and totally non-existent beyond that time scale. A touch of honesty and humility would be very appropriate at this stage. You add very little to the climate debate and have nothing other than troll status here unless you can start adding value such as answering how cooling can occur under AGW, why there is no Tropospheric hotspot, how Antarctica is robustly cold and why Arctic ice is recovering rather than disappearing. Any of the above or a sensible discussion on how Anthropogenic CO2 is causing such catastrophic climate change that we have to act immediately. Joel, you are an educated person, you know that it’s BS. Yes there are many acts of environmental vandalism that humans have to address in the area of poverty, child mortality and deforestation (all politically inspired) but CO2 emissions is not one of them and it is a myth that is costing real lives because we are diverting our massive talents and resources from where it is really needed to an argument over a very weak hypothesis that my wife could falsify whilst washing the dishes (it really is that easy).

SteveSadlov
September 14, 2009 11:21 am

Anyone getting nervous yet?
During the 20th century, we were blessed by a rare combination of benign climate, a “can do” attitude in the US, and several key scientific and technological breakthroughs. All three factors are symbiotic. Now, with the climate worsening, the “can do” attitude fading and, the absolute pace of breakthroughs slowing, things do not look good. Nietzsche forecast a rough 21st century and he was only looking at the social element.

September 14, 2009 11:59 am

Martin Mason
Whatever Joel is he is no troll. He makes us think about our position which is a good thing. I don’t think he will ever convert anyone here to his viewpoint but he makes a good case, even if he can be evasive sometimes or seems reluctant to face the possibilty that some of what we say might be right.
I am looking forward to his comments on Richard Courtneys post. Also he might clear up why he thinks that in 1957 a complete amateur managed to do what hundreds of clever scientists had obviously failed to do in the preceding 130 years-read co2 measurements accurately. Sayng that technology moved on sudenly isn’t really good enough, nor is citing a tamino post that is full of inaccuracies.
tonyb

Joel Shore
September 14, 2009 1:45 pm

Martin Mason: I’ve already given answers to most of the questions that you, some in this very thread. They are really just the standard “skeptic talking points”, which makes it strange to me that I am the one accused of being a troll. To gives brief answers to some of them:
(1) How cooling can occur under AGW? As I have discussed ad nauseum in this very thread, trends of less than a decade or so vary considerably. This can be due to internal variability alone although it certainly can be aided by effects such as a minimum in the sunspot cycle, a volcanic eruption, etc. If you live in a place with a strong seasonal cycle in temperature, you will understand this intuitively: Certainly here in Rochester, we have weeks in the fall where the temperature trend is upward but that doesn’t lead people to conclude that the seasonal cycle is a myth or that it is very weak because it can be overwhelmed by natural variability on shorter time-scales. (And, believe me, if they do fool themselves into believe this in October, they are in for one heck of a rude awakening by January!) Note also that the people who show you a (slight) negative trend are always very careful to cherrypick the time period over which they are showing it; right now, to get a negative trend over a period of time of a decade or more, one has to carefully choose the time period to be basically exactly 11.5 years, so that one includes the El Nino peak in 1998 right at the beginning of the record. If one chooses any longer time period or a shorter period of, say, 10 years, one does not get a negative trend (at least with HADCRUT3).
(2) Why is there no Tropospheric hotspot? The technical term for what you are talking about is tropical tropospheric amplification…and it is something that is expected based on a very basic piece of physics that is independent of the cause of the temperature trend or fluctuations. Namely, it has to do with the fact that the lapse rate in the tropical atmosphere is basically expected to be pegged to the moist adiabat. As such, it is expected to occur whether warming is due to greenhouse gases, solar irradiance increases, or internal variability in the climate system (like El Nino and La Nina). And, in fact, such amplification of the temperature fluctuations that occur on timescales of a year or so is predicted by the models and seen in the data. The only part of the data for which such amplification is not necessarily seen is for the multidecadal temperature trends and I say “necessarily” because it depends on which satellite analysis one looks at or which radiosonde data analysis or re-analysis one looks at. This is not surprising since the satellite and radiosonde (weather balloon) data is very reliable on the shorter time scales of a year or so but the long-term trends in the data are very difficult to measure because of artifacts such as piecing together data from different satellites for the satellite record and changes in shielding of the temperature sensor for the radiosonde record. So, in other words, the data agrees with basic theory except for a deviation in some data sets that occurs over the timescale for which the data is least reliable. And, even if this disagreement is not a data artifact, it wouldn’t directly say anything about the cause of the warming (e.g., whether or not it is due to greenhouse gases) because the prediction of such a “hotspot” is independent of the mechanism causing the warming.
(3) Why is Arctic ice recovering rather than disappearing? The answer to this is basically the same as the answer to (1). Scientists have not expected that the trend in the yearly summer Arctic sea ice minimum would be perfectly monotonic. 2007 turned out to be an exceptional year…and if the sea ice had continued to decay at the rate it was going, it would have been gone in no time. As it turns out, the following years have had some partial recovery from that extreme low but the long-term trend is still down…and down a lot faster than had been predicted only a few years ago.
You say, that AGW is “a very weak hypothesis that my wife could falsify whilst washing the dishes”. You might ask yourself how this reconciles with the fact that it is accepted by almost all the major scientific societies in the world, including the U.S. National Academy of Sciences and the analogous bodies in all of the other G8+5 nations, AAAS, the councils of the AGU, APS, and AMS. Is it that you and your wife really understand that much more science than these people or is it possible that you folks are actually fooling yourselves?

Invariant
September 14, 2009 1:56 pm

My attitude is that you should never rely on a model that does not show predictive power. Remember that science involves three steps:
1. Observations
2. Formulation of a theory that explain the observations and give predictions
3. Testing of the theory with future and unknown experiments.
It is crucial that the predictions are unknown and in nature essentially different from the initial observations. If these fail to agree with future experiments the theory is falsified. In my opinion the HADCRUT3 data are the initial observations only, and I am a little pessimistic with the respect to the possible testing of any climate model. The reason is that you cannot verify a theory since a theory in most cases may agree with experiments for the wrong reason which is overwhelmingly the most probable scenario for a successful climate theory.
The main point with the scientific process is to eliminate theories that do not agree with future and unknown experiments. However, some theories are so “well formulated” which is bad science since it makes them difficult or impossible to eliminate with the result that we cannot distinguish between falsifiable and non-falsifiable theories. Thus we can rank theories in the following order
1. Not wrong (yet).
2. Wrong.
3. Not even wrong.
The phrase “not even wrong” was coined by the early quantum physicist Wolfgang Pauli, who was known for his colourful objections to incorrect or sloppy thinking. A friend showed him the paper of a young physicist which he suspected was not of great value but on which he wanted Pauli’s views. Pauli remarked sadly, “That’s not right. It’s not even wrong.”
The climate is so complex that I suspect that any climate theory will fall into the third category “not even wrong”.

Paul Vaughan
September 14, 2009 2:13 pm

RR Kampen (06:27:21) “End of discussion […] I will remain locked up in assumptions […]”
Based on some of your upthread comments I was going to ask you if you are assuming unconditional periodicity, stationarity, & fixed spatiotemporal scale…
…but I agree we should efficiently agree to disagree since our disagreement appears to be at a fundamental level (and thus too pedantic to be of practical value in a context such as this).
Cheers! (we can move on to more productive pursuits… & avoid exchanges like this in future)

Steve
September 14, 2009 2:17 pm

This is very good, thank you.
Unfortunately, it will be rubbished by Governments because no taxes can be applied to it and by environmental/political pressure groups as there is nobody to blame.
Nobody likes the truth when it doesn’t work for them.

September 14, 2009 2:20 pm

Joel Shore (09:53:04) :
John Finn says:

In a nutshell. No-one can explain the the early 20th century warming or mid-20th century cooling – and probably not the late 20th century warming either.

You make lots of arguments as to why the effects that I mentioned can’t account for it. Yet it is true that the GCMs with these various effects included do a pretty good job reproducing these aspects of the temperature record.
This is pretty much my point, Joel. The GCMs have managed to roughly simulate the 20th century temperature record – despite using questionable as well as patently incorrect assumptions. Even some of the Realclimate contributors are starting to realise that their initial assumptions are ‘incomplete’. An example is this response by Raypierre to a comment
[Response: Wayne, please note that this is Kyle’s article not mine, though I did encourage him to write it for us. I think the interesting question raised (though not definitively answered) by this line of work is the extent to which some of the pause in warming mid-century might have been more due to decadal ocean variability rather than aerosols than is commonly thought. If that is the case, then a pause or temporary reduction in warming rate could recur even if aerosols are unchanged. Learning how to detect and interpret such things is important, lest a temporary pause be confused with evidence for low climate sensitivity. –raypierre]
As for your comment …
I admit that these attribution issues are not easy to prove
The massive increase in aerosols is difficult to prove. That’s because it didn’t happen. You need to look elsewhere to explain why warming stopped and cooling started. There was no sudden drop in solar irradiance. No volcanic effect. In any case, Pinatubo (the largest eruption of the 20th century) only caused a short term drop in temperatures. Finally, there was no increase in aerosols. Check the PDO index, Josh, and see what you reckon.

September 14, 2009 2:23 pm

Re: previous post
Sorry, Joel, I appear to have renamed you as “Josh”
Check the PDO index, Josh, and see what you reckon
I can’t think why – I don’t even know a Josh.

Invariant
September 14, 2009 2:56 pm

John Finn (14:20:58): You need to look elsewhere to explain why warming stopped and cooling started.
In 1963 Lorenz told us that our climate is sensitively dependent on the initial conditions. I suspect that our global temperature may be surprisingly sensitively dependent on the various forms of solar activity.

Ron de Haan
September 14, 2009 3:07 pm

Martin Mason (11:10:50) :
“Joel, you know that the models predicting observed values has never happened unless they were programmed to do so. You also know that their ability to predict weather or climate more than a few days advance is weak and totally non-existent beyond that time scale. A touch of honesty and humility would be very appropriate at this stage. You add very little to the climate debate and have nothing other than troll status here unless you can start adding value such as answering how cooling can occur under AGW, why there is no Tropospheric hotspot, how Antarctica is robustly cold and why Arctic ice is recovering rather than disappearing. Any of the above or a sensible discussion on how Anthropogenic CO2 is causing such catastrophic climate change that we have to act immediately. Joel, you are an educated person, you know that it’s BS. Yes there are many acts of environmental vandalism that humans have to address in the area of poverty, child mortality and deforestation (all politically inspired) but CO2 emissions is not one of them and it is a myth that is costing real lives because we are diverting our massive talents and resources from where it is really needed to an argument over a very weak hypothesis that my wife could falsify whilst washing the dishes (it really is that easy).”
Bingo.

ron from Texas
September 14, 2009 4:47 pm

Jeez … Here’s some facts to chew on. The Earth has been cooling and may do so for some decades. Even a scientist from the IPCC sees and admits that. Because of the measured data, not some FORTRAN computer game. If Hendrick Schon could get busted for manufacturing data for his carbon based computer (nanotechnology) experiments, why do people even believe the “smoothed” or “adjusted” data of the computer models, many of which will not be releasing their algorithms or raw data for perusal by reason of copyrighted intellectual property (standard protection for software) in their computer games, I mean, models? Nothing the IPCC has predicted has come to pass, even by the deadlines suggested. Certainly none of Gore’s claims or Hansen’s claims have been anywhere close. Whatever happened to observing data and not assuming causality without some analysis or even basic logic. Saying that human CO2 creates global warming not only violates basic physics and the observed behavior of CO2, it is similar to saying that Nike shoes keep one in athletic shape because athletes wear them. Coincidence does not automatically equally causality. The globe has cooled .74 degrees F since the release of “An Inconvenient Truth.” Then again, there some people who will not believe the sun is shining, even as they get sunburned. Now, that’s faith.

September 14, 2009 5:50 pm

Tony B. said:
Whatever Joel is he is no troll. He makes us think about our position which is a good thing.
Very much second that. Joel has very good command of the science on his side of the fence. Some may disagree with Joel, but indeed he is no troll.
Joel, you owe me a beer (with CO2 intact!)

Richard S Courtney
September 14, 2009 5:53 pm

Joel Shore:
You make a logical error when you say of the ‘Missing Hot Spot’,
“And, even if this disagreement is not a data artifact, it wouldn’t directly say anything about the cause of the warming (e.g., whether or not it is due to greenhouse gases) because the prediction of such a “hotspot” is independent of the mechanism causing the warming.”
Sorry but that is patent nonsense. The ‘Hot Spot’ is either
(a) an expected effect of anthropogenic global warming (AGW)
or, as you assert,
(b) an expected effect of global warming induced by any mechanism.
But the absence of the Hot Spot disproves AGW in either case.
In Case (a) the absence of the Hot Spot is clear demonstration of the absence of significant AGW (quod erat demonstrandum).
In Case (b) the absence of the Hot Spot is clear demonstration of the absence of significant global warming by any mechanism (quod erat demonstrandum). But AGW is a warming mechanism and, therefore, there is no AGW.
Anyway, your assertion that any mechanism of warming would cause the Hot Spot is an error. If you want a full explanation of that error it is in our NIPCC report or for convenience you can see my brief explanation on pages 5 and 6 of my item at
http://climaterealists.com/attachments/ftp/Heansen-Obama_letter_comments.pdf
So, the only possibilities concerning the failure to observe the Hot Spot are
1. there is no significant AGW
or
2. the data that would show the hot spot is erroneous.
The Hockey Team has attempted to discredit the data that would show the hot spot but has failed in this attempt to date. Until there is clear reason to reject the data then the only scientific conclusion which can be drawn is that there is no significant AGW.
However, everybody knows that B*** S*** baffles science where AGW is concerned.
Richard

Joel Shore
September 14, 2009 6:05 pm

Invariant says:

I suspect that our global temperature may be surprisingly sensitively dependent on the various forms of solar activity.

Why do you believe it is surprisingly sensitively dependent on solar activity and yet surprisingly insensitive to the known forcing due to increases in greenhouse gases?
ron from texas says:

Certainly none of Gore’s claims or Hansen’s claims have been anywhere close.

So, whose predictions from 1988 did better than Hansen’s?

Saying that human CO2 creates global warming not only violates basic physics and the observed behavior of CO2…

Could you fill us in on what basic physics and what observed behavior of CO2 is violated?

The globe has cooled .74 degrees F since the release of “An Inconvenient Truth.”

By what measure? According to Wikipedia, the movie opened May 24, 2006. The HADCRUT3 ( http://www.cru.uea.ac.uk/cru/data/temperature/hadcrut3gl.txt ) anomaly for May 2006 was +0.338 C. The latest value available (July 2009) is +0.499 C. If you prefer UAH L2T data ( http://vortex.nsstc.uah.edu/data/msu/t2lt/uahncdc.lt ), then the May 2006 had an anomaly of -0.01 C and the latest value available is +0.23 C. (Since May 2006 was a particularly low value for the UAH data, I could be extremely generous and give you the value in November 2006 when the DVD of the movie was released, but that only gets you up to +0.29 C.)
Of course, specific monthly values are sort of silly anyway and a more sensible approach would be to look at longer-term averages. But, even if we look at the values over the whole year, we find the HADCRUT anomaly for 2006 was +0.422 C while that for this year so far is +0.418 C (and will almost surely finish higher now that an El Nino has developed and is expected to persist).
I honestly haven’t a clue where you got your claim from and can only guess that it is from some source that gave a one month snapshot from the depths of last year’s La Nina and is now hopelessly out-of-date and was never really very meaningful to begin with.

Joel Shore
September 14, 2009 6:39 pm

Richard Courtney says:

In Case (b) the absence of the Hot Spot is clear demonstration of the absence of significant global warming by any mechanism (quod erat demonstrandum). But AGW is a warming mechanism and, therefore, there is no AGW.

No. It is not. Even assuming the particular data that you choose to show is right, all that is missing is an amplification of warming in the UPPER troposphere of the TROPICS. The warming is still occurring at the surface and at altitude all across the globe. It is simply not being amplified at higher altitudes in the tropics.
I will admit to you that this would mean there is something wrong with the models. However, imagining that the models fail to get a basic piece of physics involving convection wrong in such a way that it is wrong only over multidecadal time scales but is right at time scales on the order of a year (which is still a much longer time scale than that over which the convective effects operates) is rather difficult to engineer. In fact, I have yet to see a mechanism proposed that would explain this. That, along with the fact that the data for multidecadal trends at altitude in the tropics are all over the map depending on whose data set you believe, makes it likely that it is the data that is the problem.

Anyway, your assertion that any mechanism of warming would cause the Hot Spot is an error. If you want a full explanation of that error it is in our NIPCC report or for convenience you can see my brief explanation on pages 5 and 6 of my item at
http://climaterealists.com/attachments/ftp/Heansen-Obama_letter_comments.pdf

I imagine that your Figure 2 there (which is ultimately borrowed from the IPCC AR4 WG1 Figure 9.1) must make a pretty convincing case to someone who doesn’t know how to read a contour plot. However, those of us who do will note that the resolution of the contours is simply not good enough to see the structure of the warming for other mechanisms (because their presumed contribution to the 20th century warming is too small). For example, for solar that plot shows the tropic surface has warmed somewhere between 0 and +0.2 C while at altitude it has warmed between +0.2 C and +0.4 C, which is compatible with any amplification factor between 1 and infinity! (The pattern seen for the sulfate aerosols, by the way, also illustrates amplification…particularly in the IPCC figure where there is an additional shading that your plots seems to have eliminated…although in this case it is amplifying the cooling effect, which is what one expects given the moist adiabatic lapse rate theory mechanism that I mentioned.)
Gavin Schmidt has made a plot with the solar forcing artificially increased so that the vertical structure caused by solar forcing is visible and the result is shown here: http://www.realclimate.org/index.php/archives/2007/12/tropical-troposphere-trends/ As you can see, the only way that one can distinguish between the two by the structure of the warming is that solar causes warming of the stratosphere while greenhouse gases cause cooling of the stratosphere. As you are no doubt aware, the data show stratospheric cooling and the cooling is so large that it is robust against any possible corrections in the data. (In fact, the same warming corrections that tend to bring the radiosonde data in better agreement with the models in the troposphere actually also improve the agreement in the stratosphere, which before correction is cooling even a little more rapidly than the models would predict.)

masonmart
September 14, 2009 11:09 pm

Joel, nothing but standard warmist/catastrophist B/S I’m afraid and doesn’t answer any of my questions. I ask for concrete proof that Man Made CO2 is causing the small rise in temperature that we’ve seen since the LIA and you offer nothing except the standard :”agreement by scientific bodies”. All of these bodies have only one thing in common and it isn’t good science, it is that they receive government funding which ensures that they toe the line, none puts forward a credible case for AGW. You say that a trend of 10 years isn’t significant (it’s actually closer to 15 years) and yet the whole AGW myth is based on warming with associated CO2 rise from from 1970 to 1995. You also acknowledge that AGW (at best a very small effect) is now being overwhelmed by natural drivers, is this a bit of having your cake and eating it? When the temperature goes up it is AGW when it goes down natural forcing overwhelms AGW for this period. I believe that the forcing effect of CO2 in an actual situation is unproven and that the current CO2 rise being caused only by ACO2 is also dodgy. That is the point that we skeptics make, the whole AGW theory is weak and now the planet is agreeing with us. Cast aside your blinkers, start using your obvious intelligence positively and question your beliefs. Start by reading Ian Plimer’s Heaven and Earth.. If that fails come and wash the dishes with my wife, she understands more about real world climate than the IPCC, seriously.
Repeat afater me, no warming for 15 years despite tortured data to show otherwise, recovering Arctic ice, robustly icy Antarctica, no upper troposheric hotspot, no historical link between CO2 and temperature, no worsening weather events, no sea rise that would finger AGW, unbelievably healthy and multiplying Polar Bears. In the face of this the Polically driven Juggernaut rolls on completely unsupported despite most of the scientific community, the general public and in reality most politicians believing it to be false.
Please Americans, toss out this monstrous C&T, lets see Copenhagen become the laughing shop that it patently is and lets get back to sence and science.

masonmart
September 15, 2009 12:06 am

Sorry, Joel, what is your take on these quotes from the UN/IPCC?
The only way of saving the world may be for industrial civilisation to collapse, deliberately seek poverty and set levels of mortality.
We have to ride the theory of Global Warming even if it’s wrong.
A Global warming treaty must be implemented even if there is no evidence of global warming.
Unless we announce disaster no one will listen.
Seriously, this is what MMGW (Oh sorry, climate change) is all about and it needs sheep to implement it. Unfortunately they have made sheep out of scientific bodies and scientists themselves. Are you part of the solution or part of the problem?

anna v
September 15, 2009 12:08 am

Joel Shore (18:39:19) :
Richard Courtney says:
In Case (b) the absence of the Hot Spot is clear demonstration of the absence of significant global warming by any mechanism (quod erat demonstrandum). But AGW is a warming mechanism and, therefore, there is no AGW.
No. It is not. Even assuming the particular data that you choose to show is right, all that is missing is an amplification of warming in the UPPER troposphere of the TROPICS. The warming is still occurring at the surface and at altitude all across the globe. It is simply not being amplified at higher altitudes in the tropics.
I will admit to you that this would mean there is something wrong with the models. However, imagining that the models fail to get a basic piece of physics involving convection wrong in such a way that it is wrong only over multidecadal time scales but is right at time scales on the order of a year (which is still a much longer time scale than that over which the convective effects operates) is rather difficult to engineer.

Joel I would heartily agree with those who say you are no troll. You seem to sincerely believe what you say.
The problem is that belief should not be an attribute of checking facts against theories. Admittedly it plays a role as we are human, but we should watch out against it.
Yes, models can get it right is some places and be completely wrong in others, and when you program them in the computer they will come out with your prejudices.
An example from my field is the parton model invented and promoted strongly by the admittedly incomparable genius Feynman, it was correct for the bulk of the data studied at the time, it was wrong in deep inelastic whence the evidence for gluons and QCD came . A radical rethink of all microcosm physics was necessary just because of that disagreement.
You have a tendency when coming against a contradiction with data to say: yes, but….
All AGW supporters do that, instead of scrapping their model and starting to think of the problem from scratch. It was the same with the epicycles model of the universe of that time, which btw was not really wrong as much as irrelevant: a fit to the data. The more data, the more epicycles and understanding of what was happening was delayed until the middle ages and Copernicus. AGW theories are at the epicycle stage, with Gavin coming out with a new twist every time the data disagree with his video games. ( another way of saying that with four parameters you can fit any function with five an elephant).

irishspecialistnurseries
September 15, 2009 2:13 am

Martin Mason: …… AGW is “a very weak hypothesis that my wife could falsify whilst washing the dishes”.

This reminds me so much of a Monty Python skit: For example, given the premise, “all fish live underwater” and “all mackerel are fish”, my wife will conclude, not that “all mackerel live underwater”, but that “if she buys kippers it will not rain”, or that “trout live in trees”, or even that “I do not love her any more.” This she calls “using her intuition”.

September 15, 2009 2:37 am

Hi Joel,
so the two periods in the record you show where there was a warming in excess of 1.7C/decade are from 1974-1984 and 1992-2002. Lets look at these.
The first goes from the trough following an el nino event at the end of a thirty year cooling period to the peak of the 1983 el nino.
The second includes the big el nino spike of 1998.

It also includes the cooling from the Pinatubo eruption in 1991.

September 15, 2009 2:46 am

Invariant (14:56:17) :
John Finn (14:20:58): You need to look elsewhere to explain why warming stopped and cooling started.
In 1963 Lorenz told us that our climate is sensitively dependent on the initial conditions. I suspect that our global temperature may be surprisingly sensitively dependent on the various forms of solar activity.

Except there appears to be very little evidence for it. Perhaps all will be revealed in the next few years.

bill
September 15, 2009 4:08 am

masonmart (23:09:37) :
Naural forcings like summer and winter will affect temperatures but just because the winter is colder than summer does not make the earth head to an ice age.
If insolation is fixed and outgoing radiation (albedo and LWR) is constant temperatures will still vary over short periods.
BUT all you are doing is sloshing around the same amount of “heat”. the world does not heat or cool.
Change incoming vs outgoing radiation and the world cools or heats over a long time period. There will still be temperature variations over annual and longer periods. Sometimes up and some times down.
If incoming vs outgoing is a fixed 0.01% greater then there will still be ups and downs but in enough time and FIXED difference the world will cook. Luckily outgoing is not fixed – albedo, blackbody, etc. provide negative feedback to help maintain fixed global temp. This is not 100% negative feedback such that constant temp is maintained (1% increase in incoming radiation is not matched by 1% increase in outgoing) Change incoming (e.g. insolation) or outgoing (e.g. GHGs) and there will therefore be a corresponding but small change to temp but it will not be an instant response (c.f. a low pass filtered square wave in electronics).
Most here say it is a government/scientific conspiracy. I would really like to know
1 what governments expect out of following AGW (it isn’t popularity! More taxes=loss of next election).
2 What researchers expect. Funding will only last a few years until AGW is disproved (in your view) then their names will become a source of derision like Charles Dawson (piltdown man). I would suggest that most scientists would not aim for this ending.

Richard S Courtney
September 15, 2009 4:22 am

Joel Shore:
I congratulate you on the best ad hom. of the day when you say to me concerning the Missing Hot Spot:
“I imagine that your Figure 2 there (which is ultimately borrowed from the IPCC AR4 WG1 Figure 9.1) must make a pretty convincing case to someone who doesn’t know how to read a contour plot. However, those of us who do will note that the resolution of the contours is simply not good enough to see the structure of the warming for other mechanisms (because their presumed contribution to the 20th century warming is too small).”
That is a good insult but a bad argument.
Firstly, as you admit, the figure is from IPCC AR4 but with added annotation. Please explain why you think the IPCC included the figure if, as you assert, it is meaningless because “the presumed structure [of other mechanisms] is too small”.
In reality, IPCC WG1 included that figure because it explains the model-predicted patterns of warming from the various forcing mechanisms.
Secondly, the Hot Spot is missing and it is that pattern of warming which is the ‘fingerprint’ of the effect of the AGW mechanism. Please note that the Hot Spot is a model prediction that in the tropics at altitude the warming will of 3 times the warming at the surface. So, a claim that the data is inadequate to show the Hot Spot is a claim that the data is very inadequate to show surface warming. But you have replied;
“The warming is still occurring at the surface and at altitude all across the globe.”
Rubbish! The warming is NOT occurring “at altitude” according to the data. Indeed, the fact that the data shows slight cooling at altitude in the tropics is the subject we are discussing.
And my post you replied pointed out to you that if it is claimed the data is not adequate to show the warming at altitude then that same data cannot be adequate to show the much smaller warming at the surface.
So, I can and do “know how to read a contour plot” but you deny the plot shows what it does. And you attempt to justify your denial with an ad hom..
I give your reply to me an A+ for humour but a C- for factual content.
Richard

Stefan
September 15, 2009 7:24 am

It is a fascinating thread, but it seems the arguments can be summed up thus:
AGW: look closely it is warming!
skeptic: i’m looking closely and i see no warming
AGW: no no you’re looking too close, stand further back
skeptic: i’m standing further back and i see no warming
AGW: no no you’re standing too far back, come closer
skeptic: ok i’m closer now and i see no warming
AGW: no no now you’re too close again, stand further back

Invariant
September 15, 2009 8:59 am

Joel Shore (18:05:33): Why do you believe it is surprisingly sensitively dependent on solar activity and yet surprisingly insensitive to the known forcing due to increases in greenhouse gases?
I have not said that “the sun is surprisingly insensitive due to increases in greenhouse gases”.

Invariant
September 15, 2009 9:04 am

John Finn (02:46:17) : Except there appears to be very little evidence for it. Perhaps all will be revealed in the next few years.
Indeed. A solid temperature drop would be fine.

Ron de Haan
September 15, 2009 9:38 am

Stefan (07:24:42) :
It is a fascinating thread, but it seems the arguments can be summed up thus:
AGW: look closely it is warming!
skeptic: i’m looking closely and i see no warming
AGW: no no you’re looking too close, stand further back
skeptic: i’m standing further back and i see no warming
AGW: no no you’re standing too far back, come closer
skeptic: ok i’m closer now and i see no warming
AGW: no no now you’re too close again, stand further back

Very funny Stefan, but I prefer the following approach:
Eliminating the Anthropogenic Global Warming Scare:
1. Increase in atmospheric CO2 drives Global Temperatures:
Not True:
http://icecap.us/images/uploads/MSUCRUCO2.jpg
2. Heats the oceans
Not true:
http://icecap.us/images/uploads/argodata.jpg
. 3. Causes sea level rise:
Not True
http://sealevel.colorado.edu/
4. Our ice caps are melting:
Not True
North Pole
http://www.ijis.iarc.uaf.edu/en/home/seaice_extent.htm
North Pole Temps from 1950 until now:
http://ocean.dmi.dk/arctic/meant80n.uk.php
South Pole
Not True: Ice extend at record high
http://arctic.atmos.uiuc.edu/cryosphere/IMAGES/current.anom.south.jpg
5. Increase in Hurricanes
Not True:
http://icecap.us/index.php/go/joes-blog/hurricanes_and_the_northeast/
In short, the entire AGW?Climate Change Scare is based on spin and lies.

Richard S Courtney
September 15, 2009 10:04 am

Bill:
You say:
“Change incoming vs outgoing radiation and the world cools or heats over a long time period. There will still be temperature variations over annual and longer periods. Sometimes up and some times down.”
But that is not how the world is observed to behave.
Firstly, the Earth is constrained within close limits of global temperature in each of two stable states; viz. glacial and interglacial. And its temperature has been the same within narrow bounds in each of those stable states throughout the ~2.5 billion years since the Earth gained an oxygen-rich atmosphere. And the Earth’s surface has had liquid water throughout that time. But heating from the Sun has increased by about 30% over that time. If that additional radiative forcing from the Sun had a direct effect on temperature then the oceans would have boiled to steam long ago.
Clearly, the climate system contains very strong constraints that keep global temperature within close boundaries in each of the two stable states.
And I wonder why an increase to radiative forcing of at most 0.4 per cent from a doubling of atmospheric carbon dioxide concentration is supposed to threaten catastrophe when ~30 per cent increase to radiative forcing from the Sun has had no discernible effect.
But the global temperature does constantly vary within the boundaries of its stable state. Its present state is the interglacial state and has been for ten millenia. At issue is why the global temperature varies within the boundaries.
The climate system is seeking an equilibrium that it never achieves. The Earth obtains radiant energy from the Sun and radiates that energy back to space. The energy input to the system (from the Sun) may be constant (although some doubt that), but the rotation of the Earth and its orbit around the Sun ensure that the energy input/output is never in perfect equilbrium.
The climate system is an intermediary in the process of returning (most of) the energy to space (some energy is radiated from the Earth’s surface back to space). And the Northern and Southern hemispheres have different coverage by oceans. Therefore, as the year progresses the modulation of the energy input/output of the system varies. Hence, the system is always seeking equilibrium but never achieves it.
Such a varying system could be expected to exhibit oscillatory behaviour. And it does. Mean global temperature (n.b. global and not hemispheric temperature) rises by 3.8 degC from January to July and falls by 3.8 degC from July to January each year.: see
http://www.ncdc.noaa.gov/oa/climate/research/anomalies/index.php
Please note that the highest global temperature is when the Earth is furthest from the Sun during each year and, therefore, it is an empirical fact that mechanisms within the climate system have much more effect on global temperature than “Change incoming vs outgoing radiation “.
(Incidentally, I wonder why some people think a rise of global temperature of 2 degC would pass a catastrophic “tipping point” when global temperature rises by nearly double that during each year and recovers within the same year, and it does this every year).
Such oscillations could induce harmonic effects which have periodicity of several years. Indeed, it would be surprising if such harmonic effects did not occur. Of course, such harmonic oscillation would be a process that – at least in principle – is capable of evaluation. And assessment of that process may indicate frequencies of observed oscillations (i.e. NAO, PDO, etc.).
It is interesting to note that there is an apparent oscillation with a frequency of ~60 years because mean global temperature is estimated to have cooled from ~1880 to ~1910, then warmed to ~1940, then cooled to ~1970, then warmed to 1998, and has cooled since then. It is tempting to speculate that this ocillation is a harmonic effect.
However, there may be no process because the climate is a chaotic system. Therefore, the observed oscillations (i.e. NAO, PDO, etc. and the 60 year oscillation) could be observation of the system seeking its chaotic attractor(s) in response to its seeking equilibrium in a changing situation.
Very importantly, there is an apparent ~900 year oscillation that caused the Roman Warm Period (RWP), then the Dark Age Cool Period (DACP), then the Medieval Warm Period (MWP), then the Little Ice Age (LIA), and the present warm period (PWP). All the observed rise of global temperature in the twentieth century could be recovery from the LIA that is similar to the recovery from the DARC to the MWP. And the ~900 year oscillation could be the chaotic climate system seeking its attractor(s). If so, then all global climate models and ‘attribution studies’ utilized by IPCC and CCSP are based on the false premise that there is a force or process causing climate to change when no such force or process exists.
Furthermore, harmonic oscillation and chaotic attractor seeking may both occur.
It is interesting to consider why some people want to believe in man-made global warming when there is no evidence of any kind for it and much evidence denies it: e.g. see
http://www.tech-know.eu/uploads/AGW_hypothesis_disproved.pdf
I think they stick to their belief because my comments in this posting are considerations of reality, but AGW-supporters prefer to consider virtual reality.
Richard

September 15, 2009 10:48 am

Invariant (09:04:27) :
John Finn (02:46:17) : Except there appears to be very little evidence for it. Perhaps all will be revealed in the next few years.
Indeed. A solid temperature drop would be fine.

Don’t bet on it.

Stephen Wilde
September 15, 2009 11:12 am

Richard Courtney (1004:40)
Nice description, Richard and helpful to me.
I’ve been trying to square my agreement with Leif over short term inadequacy of observed solar variability with my disagreement with him over longer time scales and I needed a ‘bridge’ such as that 900 year oscillation that you mention.
Heretofore I’ve been assuming that oscillation to be solar induced but there could just as easily be an internal climate oscillation on that time scale.
If it is an internal oscillation then there is no need to continue disagreeing with Leif on time scales of 1000 to 10000 years.
It seems clear to me that there are internal oscillations originating from the interaction between sun and ocean. That accommodates all the variables you mention as causative features.
It is also clear that they operate on different time scales from interannual ENSO events to PDO phase changes to that 900 year cycle.
Depending on the state of the oceans as regards their rate of energy release to the air all else follows as the air adjusts the rate of energy transfer from surface to space to maintain stability between glacial and interglacial epochs.
Critical to the maintenance of that stability are the latitudinal shifts in the air circulation systems which always occur in response to ocean variability.

Stephen Wilde
September 15, 2009 11:18 am

Addiionally, if the sun has increased it’s power by 30% yet the system has retained stability then I would venture that nowadays the speed of the hydrological cycle is proportionately faster than it was when the sun was cooler.
That looks like a highly likely explanation to me. It fits all current observations and basic physics and potentially deals a fatal blow to AGW because any process capable of that would deal with extra energy in the air by the most miniscule of adjustments which we could never hope to measure.
Any comments ?

September 15, 2009 11:34 am

Richard S Courtney (10:04:40) :
Such a varying system could be expected to exhibit oscillatory behaviour. And it does. Mean global temperature (n.b. global and not hemispheric temperature) rises by 3.8 degC from January to July and falls by 3.8 degC from July to January each year.: see
http://www.ncdc.noaa.gov/oa/climate/research/anomalies/index.php

The difference in TSI between January and July is 90 W/m2 giving a temperature difference of 7.6 K, so the 1.5 W/m2 solar cycle variation gives 7.6/90*1.5 = 0.13K, about the order of magnitude we have deduced many times before [perhaps twice because of ‘feedbacks’].
Stephen Wilde (11:12:02) :
Heretofore I’ve been assuming that oscillation to be solar induced but there could just as easily be an internal climate oscillation on that time scale.
If it is an internal oscillation then there is no need to continue disagreeing with Leif on time scales of 1000 to 10000 years.

I think we can agree on this.
Stephen Wilde (11:18:51) :
Addiionally, if the sun has increased it’s power by 30% yet the system has retained stability then I would venture that nowadays the speed of the hydrological cycle is proportionately faster than it was when the sun was cooler.
Perhaps the 50 times as much CO2 also had something to do with it. Speculating about billions of years is premature.

Glenn
September 15, 2009 11:46 am

Hi world ocean – remember to read the article and cool down/fall back to 1985 heat level in – say – 5-10 years? 😉 :
Global Ocean Heat Content:
http://www.nodc.noaa.gov/OC5/3M_HEAT_CONTENT/
November 5, 2008 Correcting ocean cooling:
http://earthobservatory.nasa.gov/Features/OceanCooling/
Quote: “…
According to the float data on his computer screen, almost the entire Atlantic Ocean had gone cold. Unless you believe The Day After Tomorrow, Willis jokes, impossibly cold.

He was supposed to fly to Colorado that weekend to give a talk on “ocean cooling” to prominent climate researchers. Instead, he’d be talking about how it was all a mistake.

What we found was that ocean heating was larger than scientists previously thought, and so the contribution of thermal expansion to sea level rise was actually 50 percent larger than previous estimates.”
…”

Joel Shore
September 15, 2009 12:08 pm

Richard S Courtney says:

Firstly, as you admit, the figure is from IPCC AR4 but with added annotation. Please explain why you think the IPCC included the figure if, as you assert, it is meaningless because “the presumed structure [of other mechanisms] is too small”.

It is not the IPCC’s fault that their figure has been used by you to try to illustrate things that it was not designed to illustrate. For their purpose, they chose to use the same scale of contour ranges for all of the different forcings so that the relative magnitudes of the various forcings was apparent. The disadvantage of this is that it does not allow one to see details of the geographic and altitudinal structure of the warming for the weaker forcings, which for the IPCC’s purposes was okay but for your purposes is not.

Secondly, the Hot Spot is missing and it is that pattern of warming which is the ‘fingerprint’ of the effect of the AGW mechanism. Please note that the Hot Spot is a model prediction that in the tropics at altitude the warming will of 3 times the warming at the surface. So, a claim that the data is inadequate to show the Hot Spot is a claim that the data is very inadequate to show surface warming.

And my post you replied pointed out to you that if it is claimed the data is not adequate to show the warming at altitude then that same data cannot be adequate to show the much smaller warming at the surface.

The models predict such a pattern whether the warming is due to AGW or something else, like solar, as Gavin’s run illustrates. Therefore, it is silly to claim it is a ‘fingerprint’ of the AGW mechanism. If everybody had the same fingerprint, the technique of using fingerprints to determine who the criminal is would not be very effective.
Now the cooling of the stratosphere is indeed a “fingerprint” of the AGW mechanism (at least in distinguishing it from solar irradiance changes; I’m not sure what spontaneous changes in cloud cover or other proposed mechanisms would show). And, cooling of the stratosphere is what the data clearly show.
As for the data being inadequate, it is the weather balloon data that is inadequate. The surface data is fortunately much more plentiful and better controlled. (Even the weather balloon data is adequate for showing the fluctuations in temperature on timescales of a few years or less; it is only when one tries to pull multidecadal trends that are very sensitive to any artificial secular trends in the data that it gets dicey.)

“The warming is still occurring at the surface and at altitude all across the globe.”
Rubbish! The warming is NOT occurring “at altitude” according to the data. Indeed, the fact that the data shows slight cooling at altitude in the tropics is the subject we are discussing.

Below 200mB, the data you show generally shows warming in the tropics and other data sets do too, many moreso. (There was a time when the UAH T2LT data set showed cooling in the tropics but that was due to an error that has now been corrected.) Even if there is no amplification of the warming at the surface (i.e., an amplification factor of 1), that does not mean there is cooling; it simply means the warming is the same further up as it is at the surface.

So, I can and do “know how to read a contour plot” but you deny the plot shows what it does. And you attempt to justify your denial with an ad hom..

I don’t have any opinion on whether you can’t read a contour plot or whether you can but are hoping that others cannot. However, my point still stands that the contour plots that you show for mechanisms like solar don’t have the resolution in temperature necessary to determine what the expected amplification factor is for that forcing as you go up in the tropical troposphere with any reasonable accuracy. This is why Gavin ran the models with an artificially large solar forcing so that one can see that the pattern of amplification occurs for that forcing too.

Martin Mason
September 15, 2009 12:10 pm

Bill, I believe the World government via the UN theory more and more. Otherwise the ability of National government to raise revenue as it sees fit via carbon taxes is too much for them to resist,

Joel Shore
September 15, 2009 12:20 pm

Masonmart says:

All of these bodies have only one thing in common and it isn’t good science, it is that they receive government funding which ensures that they toe the line, none puts forward a credible case for AGW.

So, basically, it is a big massive conspiracy and you can’t trust scientists and scientific organizations specifically charged with providing the U.S. government sound scientific advice like NAS. Do you really think that’s logical?

Start by reading Ian Plimer’s Heaven and Earth…

I personally prefer non-fiction to fiction. (See here for some links to discussions of the fantasies of Plimer: http://scienceblogs.com/deltoid/ )

Repeat after me, no warming for 15 years despite tortured data to show otherwise, recovering Arctic ice, robustly icy Antarctica, no upper troposheric hotspot, no historical link between CO2 and temperature, no worsening weather events, no sea rise that would finger AGW, unbelievably healthy and multiplying Polar Bears.

Why should I repeat after you when I spent a large amount of time addressing some of these points and you refuse to respond in any way except to repeat them again like a mantra.? And, by the way, at least with HADCRUT3, you are only going to get a negative trend line if you look over something of almost precisely 11.5 year or less than a decade. You ain’t going to get it over 15 years. And, you are going to find that even though 1998 is the warmest year in that record (due to the massive El Nino), the next 7 warmest years have all occurred since 2001.

Sorry, Joel, what is your take on these quotes from the UN/IPCC?

These quotes are from the IPCC according to who? Do you have cites?

Evan Jones
Editor
September 15, 2009 12:29 pm

So, basically, it is a big massive conspiracy and you can’t trust scientists and scientific organizations specifically charged with providing the U.S. government sound scientific advice like NAS.
I think it’s more like Little Mac’s Pinkerton operatives during the American Civil War. There was no “conspiracy” whatever. Yet somehow they always managed to “count” three to six times as many rebs as were actually there. (That’s what happens when you get paid by the reb.)
I doubt the “Limits to Growth” gaggle was actually “conspiring” either. They just happened to be going with the same (wildly ridiculous) flow. Being sheep, they had to go in a flock. Great minds think alike. And sometimes not-so-great minds.
In the history biz we see this sort of thing all the time. We like to think of it as “class action behavior” (we have less polite descriptives).

Ron de Haan
September 15, 2009 12:35 pm

Our oceans, volcano’s and our sun drive our climate.
In what way, we still have to find out.
CO2 is not in the list.
What’s interesting to research is how the changes (drop and rise) in temperatures can happen in such small time frames (10 years).
http://news.scotsman.com/scitech/Last-Ice-Age-happened-in.4351045.jp
http://anhonestclimatedebate.wordpress.com/2009/03/23/canadian-prairie-winter-temperature-anomalies-drop-by-66-71-degrees-c-in-just-three-years/
http://discovermagazine.com/2002/sep/cover

Stephen Wilde
September 15, 2009 12:37 pm

Stephen Wilde (11:18:51) :
Additionally, if the sun has increased it’s power by 30% yet the system has retained stability then I would venture that nowadays the speed of the hydrological cycle is proportionately faster than it was when the sun was cooler.
Leif Svalgaard:
Perhaps the 50 times as much CO2 also had something to do with it. Speculating about billions of years is premature”
Reply:
Now, Leif, I thought you didn’t accept CO2 as a climate forcing agent ?
In theory the increase in the power of the sun could now be being offset by the reduction in CO2 but over those billions of years the CO2 level has varied a great deal so if the presence or absence of CO2 were capable of destabilising the system there were plenty of past opportunities for our liquid oceans to disappear.
No, the truth is that as Richard says there is a powerful mechanism that has preserved our liquid oceans despite everything that sun and CO2 variations
(and every other type of variation including severe volcanicity and sizeable meteorite strikes) could throw at us over billions of years.
It is the speed of the hydrological cycle, stupid !
We see it now on a daily basis and nothing that humanity does by way of CO2 emissions will make one jot of difference.
Everything about billions of years past is speculation not just what I say.
However I am pointing out a current observable phenomenon that has the power to explain why that 30% increase in solar output has failed to boil our oceans away.
Look at a pot of boiling water and ensure that all the steam condenses and returns to the pot.
It doesn’t matter how much energy you apply the water will never go away and the maximum temperature of the water will never exceed 100C.
All that happens is that the more energy you put in the faster the water circulates from liquid to steam and back again.
So it is with the Earth.
The hydrological cycle pumps energy to space as fast as is necessary to maintain stability.
Since the air cannot warm the oceans the equilibrium temperature is set by the oceans and now in light of these new (to me) thoughts I don’t think it is the sun that sets the temperature at all.
What really sets the equilibrium temperature is the density and pressure differential between water and space. The air in between has an effect but due to it’s very low density as compared to water it has no significant influence (CO2 even less and human CO2 even less than that).
Apply more energy from whatever source (even the sun) and the density and pressure differentials drive the speed of the hydrological cycle instead of raising the equilibrium temperature.
Look again at that pot of boiling water. The water boils at 100C simply because of the density and pressure differential prevailing on Earth. Change the density or the pressure and the boiling point changes. The water still can get no hotter than the boiling point whatever it might then be.
Likewise at the surface of the oceans it is the density and pressure differentials that dictate the temperature at which the evaporative change of state occurs. Change the energy input whether from Sun or GHGs or whatever and all you do is change the speed of evaporation for no change in overall equilibium temperature.
The oceans are a pot of water. The air always returns the water to the pot. The temperature of the water is set by the temperature at which evaporation occurs. The temperature at which evaporation occurs is set by density and pressure differentials.
However much energy is added (30% increase in solar power or a vast increase in GHGs) all that happens is that the rate of the hydrological cycle increases for no change in the temperature at which evaporation occurs.
To change the temperature at whch evaporation occurs one has to change the density of the entire body of air around the planet. few ppm (or even a lot) of extra CO2 would have no significant effect.
Tyndall observed a real feature of the composition of the air but it cannot affect the equilibrium temperature of the planet.
The properties of water do it all.
Why do you think that all life is bags of mostly water ?
It is the only compound that can maintain stability long enough for life to develop as it has done on Earth in the face of natural disruptions both astronomic and geological.
Is there an error here so simple that it should shut me up or is there not ?

Paul Vaughan
September 15, 2009 12:55 pm

Invariant (08:59:49) “I have not said that “the sun is surprisingly insensitive due to increases in greenhouse gases”.”
You expose the usual painting of everyone at WUWT (a diverse bunch) with the same broad-brush assumptions.

September 15, 2009 1:56 pm

Stephen Wilde (12:37:24) :
Leif Svalgaard:
Perhaps the 50 times as much CO2 also had something to do with it. Speculating about billions of years is premature”
Reply:
Now, Leif, I thought you didn’t accept CO2 as a climate forcing agent ?

If there is enough of it, I give it a good chance. E.g. on Venus. Although in the Venus case one has to be a bit careful. Just a very thick atmosphere in itself might have most of the effect, but there is the question of how it got that way.
Then there is the carbonyl sulphide possibility: http://www.astrobio.net/pressrelease/3222/a-carbonyl-sulphide-blanket
So, some greenhouse effect was probably at work. I think there may be others as well. The bottom line is that the atmosphere was so different that most of we say is just speculation and not helpful in the current situation.

Joel Shore
September 15, 2009 2:29 pm

Stephen Wilde: One obvious problem with your hypothesis is that it proves too much. In fact, we know that there have been significant variations in climate over the eons. Your hypothesis seems to suggest there shouldn’t have been.
[Besides which, I don’t think it makes sense to say, “the hydrological cycle pumps energy to space as fast as is necessary to maintain stability.” While that cycle can affect how heat is moved around in the atmosphere (and hydrosphere), ultimately the heat must be lost to space via radiation and the rate at which it is lost is set by the Stefan–Boltzmann Law applied using the temperature of the effective radiating level.]
A more reasonable hypothesis as to why the temperatures have remained within certain bounds would involve these points:
(1) The amount of radiation emitted by an object is proportional to T^4, so the temperature doesn’t have to change as dramatically as would be the case if it were not proportional to such a high power of T in order to maintain balance. (And, of course, these basic equations of radiative equilibrium are included in climate models.)
(2) On geological timescales, there are negative feedbacks in the carbon cycle. For example, when we had the periods of snowball or slushball earth ( http://en.wikipedia.org/wiki/Snowball_earth ), weathering of rocks no longer removed CO2 from the atmosphere and it eventually built up to a level sufficient to melt the ice. Likewise, during warmer periods, the weather rate would increase eventually drawing the CO2 level down and causing cooling. Unfortunately, these feedbacks operate over geological timescales and thus won’t come into play in our current “experiment”.

Joel Shore
September 15, 2009 2:33 pm

Leif says:

Although in the Venus case one has to be a bit careful. Just a very thick atmosphere in itself might have most of the effect, but there is the question of how it got that way.

I lost you there, Leif. How would a thick atmosphere matter if it were not IR-active? In that case, the radiation from the surface would escape directly into space and the Stefan-Boltzmann Equation would limit what this temperature could be.

Richard S Courtney
September 15, 2009 2:39 pm

Stephen Wilde and Leif Svalgaard:
Leif quotes Stephen as saying:
“Stephen Wilde (11:18:51) :
Additionally, if the sun has increased it’s power by 30% yet the system has retained stability then I would venture that nowadays the speed of the hydrological cycle is proportionately faster than it was when the sun was cooler.”
And replies with:
”Perhaps the 50 times as much CO2 also had something to do with it. Speculating about billions of years is premature.”
Perhaps the extra CO2 did have “something to do with it” but the available evidence does not support such a contention. As I said, “the Earth is constrained within close limits of global temperature in each of two stable states; viz. glacial and interglacial. And its temperature has been the same within narrow bounds in each of those stable states throughout the ~2.5 billion years since the Earth gained an oxygen-rich atmosphere.” But the CO2 went up and down like a fiddler’s elbow over that time. So, it seems improbable that the extra CO2 did have “much to do with it”.
Stephen asks my opinion on variation to the speed of the hydrological cycle, but I am certainly not willing to speculate on that over the ~2.5 billion years because the geography of the continents varied greatly and that must have had an effect on the hydrological cycle.
Indeed, I strongly agree with Leif when he says:
“Speculating about billions of years is premature.”
We can observe that the robust bi-stability has existed over that long time-scale, but nobody knows the cause of that bi-stability.
However, the work by Dick Thoenes using salt pans (not published because of commercial confidentiality) does suggest that evapourative cooling is a severe brake on surface temperature rise when additional surface heating is applied. Therefore, the reaction of the hydrological cycle is to act as a control on surface temperature. Indeed, sea surface temperature has a maximum value of 305K and this is achieved in the tropics (this was first determined by Ramanathan & Collins, Nature (1990) and has been confirmed by several other studies since then). Also, most land surface is moist so it also cannot rise above that limit: there are a few dry desert places that can and do get above it but their area is too small to be significant.
So, the important question is:
Why does the climate cycle exhibit such a robust bi-stability that global temperature has not been discernibly affected by ~30 per cent increase to solar variation, major changes to the distributions of land masses, and very fluctuating atmospheric CO2 concentrations over the last ~2.5 billion years?
I do’nt know the answer to that question, nobody does. It needs investigation, and study of the hydrological cycle is an obvious place to start that investigation.
I add that I would like to know why some people think that robust bi-stability could be disturbed by the relatively trivial effect of doubling modern atmospheric CO2 concentration when nobody knows the cause of the bi-stability.
I hope the above is a clear exposition of my views that Leif commented and Stephen questioned.
Joel Shore:
In response to my post to you that said and asked:
“Firstly, as you admit, the figure is from IPCC AR4 but with added annotation. Please explain why you think the IPCC included the figure if, as you assert, it is meaningless because “the presumed structure [of other mechanisms] is too small”.
In reality, IPCC WG1 included that figure because it explains the model-predicted patterns of warming from the various forcing mechanisms. ”
You have replied:
“It is not the IPCC’s fault that their figure has been used by you to try to illustrate things that it was not designed to illustrate.”
That reply is surreal. I used the illustration to show what the IPCC says it shows. And you have not answered my question that was:
“Please explain why you think the IPCC included the figure if, as you assert, it is meaningless”.
I have answered (in this case “answered” is a polite euphemism for “demolished) every point you have made on this matter. And I will address your responses to me if and when they address my points. Until then, I think it best that I ignore your repetitions of your assertions because I have already refuted them with facts.
Richard

Gerry
September 15, 2009 2:48 pm

The first paper of Session 4 in the upcoming SOHO23 conference (http://www.soho23.org/) looks especially relevant to Dr. Svensmark’s findings:
Session 4
How does the Solar Wind transmit the Unique Properties of Solar Minimum out to the Heliosphere?
Nathan Schwadron (Chair)
Title: Review of unusual in-situ conditions during the present solar minimum.
Edward J. Smith (INVITED)
Affiliation: Jet Propulsion Laboratory, 4800 Oak Grove Dr., Pasadena, CA, 91001, USA
Abstract: Ulysses observations are witness to the present unusual solar minimum. Compared to the previous four minima that took place since continuous measurements by spacecraft began, the heliospheric magnetic field (HMF) strength and solar wind pressure have decreased to new lows. The field is about 20 % weaker than in the previous minimum and the solar wind pressure is correspondingly low principally as a result of a decrease in density. The combined Ulysses observations obtained over the last 18 years have revealed that the solar wind pressure, nmv2 (where n, m and v are number density, mass and speed), and magnetic flux, r2 Br (where r and Br are solar radial distance and the radial component of the HMF), are correlated not only in the heliosphere but at the coronal source. The decreases observed and implied at the source are clearly associated with a decrease in the Suns polar cap field strength by a factor of about two. Ulysses has also shown that r2 Br is independent of solar latitude throughout the solar cycle so that the longer record of magnetic field measurements by in-ecliptic spacecraft can be used to study variations in total heliospheric magnetic flux over the four solar cycles since 1967 and their relation to sunspot numbers and the solar magnetic field. In addition to the changes in Br, the field strength, B, and solar wind pressure, systematic variations in the inclination of the current sheet separating fields from the north and south solar hemispheres, i.e., the heliospheric magnetic equator, provide important information about the orientation of the Suns magnetic dipole. Estimates of the dipole strength and inclination obtained by these heliospheric measurements are complementary to those of the more complex photospheric magnetic fields recorded by magnetographs and to modeling of the solar heliospheric field. The accumulated information should assist in attempts to answer questions relevant to this workshop such as why this minimum is so different and what that may imply for the new cycle just beginning.

Stephen Wilde
September 15, 2009 3:48 pm

“Joel Shore (14:29:43) :
Stephen Wilde: One obvious problem with your hypothesis is that it proves too much. In fact, we know that there have been significant variations in climate over the eons. Your hypothesis seems to suggest there shouldn’t have been.”
Reply:
It’s nice to have the problem of a hypothesis that proves too much.
To answer your point I see no reason why the modulating effect of a variable speed for the hydrological cycle should not nevertheless leave room for significant climate variation.
You seem to have missed my observation that the oceans release energy to the air at variable rates over a number of timescales. ENSO on an interannual basis, Phase changes at 25 to 30 year intervals and possibly the 900 year cycle mentioned by Richard S. Courtney which may be internal to the system or solar induced (I’ve not made my mind up on that).
Anyway the oceanic variability in the supply of energy to the air on whatever timescales introduces quite enough variability to explain observed climate changes and over time the speed of the hydrological cycle changes to neutralise the effect every time.
Joel Shore:
“[Besides which, I don’t think it makes sense to say, “the hydrological cycle pumps energy to space as fast as is necessary to maintain stability.” While that cycle can affect how heat is moved around in the atmosphere (and hydrosphere), ultimately the heat must be lost to space via radiation and the rate at which it is lost is set by the Stefan–Boltzmann Law applied using the temperature of the effective radiating level.]”
Reply:
You have to remember that we are dealing with 4 dimensions here. The usual 3 plus time.
The hydrological cycle doesn’t just move energy up and down, forward and back and from side to side it also accelerates and decelerates the flow of energy through the air between surface and space. Ultimately there is another layer of variability at the air/space interface which is governed by the varying interaction between the flow of energy from sun to sea to air to space as it comes up against the portion of solar energy that reacts exclusively with the top of the atmosphere.
Just the same 4 dimensional process is going on within the oceans. Energy is moved up and down, forward and back, side to side and the rate of release to the air is accelerated and decelerated.
That affects the operation of the Stefan-Boltzmann Law and causes it to have differing effects over time.
The air circulations have to do two things:
1) Arrange for the sea surface temperature to match surface air temperature over time.
2) Arrange for the energy radiated out to space to match energy received from the sun over time.
Both processes have to work in balance otherwise we say goodbye to liquid oceans. We have had liquid oceans for billions of years so it must work out.
Everything we observe in the air from sea level to top of atmosphere is a consequence of those competing and mutually contradictory requirements.
It is hardly surprising that betweeen sea surface and top of atrmosphere we see a lot of phenomena that are hard to explain individually but I suggest you slot everything into my overarching scenario and I think it must then make sense.

Stephen Wilde
September 15, 2009 4:01 pm

Richard S. Courtney:
Stephen asks my opinion on variation to the speed of the hydrological cycle, but I am certainly not willing to speculate on that over the ~2.5 billion years because the geography of the continents varied greatly and that must have had an effect on the hydrological cycle.
Reply:
Of course that must be so but the fact that we still have liquid oceans after billions of years suggests that it was those very changes in the speed of the hydrological cycle which prevented the varying geography of the continents from upsetting the basic equilibium set by the temperature (taking a global average of course) at which evaporation from the ocean surface occurs.
No need to speculate. We have liquid oceans. They can only be maintained if changes in the speed of the hydrological cycle can neutralise everything thrown at the system by astronomic and geological events over billions of years.
What else could possibly do it ?

September 15, 2009 4:23 pm

Joel Shore (14:33:07) :
I lost you there, Leif. How would a thick atmosphere matter if it were not IR-active?
PV=RT

September 15, 2009 4:33 pm

Gerry (14:48:35) :
The first paper of Session 4 in the upcoming SOHO23 conference (http://www.soho23.org/) looks especially relevant to Dr. Svensmark’s findings
I don’t think so, as the cosmic ray intensity is not markedly different this minimum from all previous minima where we have data [back to 1952]. When comparing cosmic ray stations, remember that different stations show slightly different variations and one must look at many to see the correct pattern. It is like measuring temperature, you cannot just look at one place and say that is representative of the whole globe.

Joel Shore
September 15, 2009 5:27 pm

Leif: I understand that the ideal gas law will control the temperature structure of the atmosphere but I don’t think that gets you around also having to satisfy the First Law of Thermodynamics. If the surface temperature were as hot as Venus’s is and the atmosphere were not IR-active, Venus would be radiating heat away like crazy! (There were some original proposals that Venus could be generating lots of heat by processes like nuclear reactions but a paper way back in the 60s of thereabouts showed that there was no way to conduct heat to the surface fast enough to keep Venus as warm as it is, even if there were some mechanism producing the heat within the planet.

Joel Shore
September 15, 2009 5:33 pm

Richard S. Courtney says:

I have answered (in this case “answered” is a polite euphemism for “demolished) every point you have made on this matter. And I will address your responses to me if and when they address my points. Until then, I think it best that I ignore your repetitions of your assertions because I have already refuted them with facts.

Perhaps in the strange world that you inhibit, you really think that you have! I suppose you can continue to fool yourself and some people for a while. But fortunately, science will win out despite the best efforts of people like you to obfuscate it and spin it.

September 15, 2009 5:52 pm

Joel Shore (17:27:50) :
Leif: I understand that the ideal gas law will control the temperature structure of the atmosphere but I don’t think that gets you around also having to satisfy the First Law of Thermodynamics. If the surface temperature were as hot as Venus’s is and the atmosphere were not IR-active, Venus would be radiating heat away like crazy!
The CO2 in such a large amount would help to keep in the heat. The high pressure also helps to make the number of atoms higher, so a combination of the two. There is also a perpetual cloud cover to prevent some of the heat from escaping. But why get bogged down with Venus? It is different from Earth that it is hard to transfer from one atmosphere to the other.

John Phillips
September 15, 2009 6:28 pm

It seems the real human tragedy will come with the end of the interglacial period, which has been historically quite short. Are we about half way through a normally 20K year interglacial period? It seems like distant generations will be grateful if we could postpone the end of the interglacial by even a few thousand years. Global warming adaption seems feasible. Why are we trying to keep the end of the interglacial period on schedule? I am truly asking since I’m not a scientist. As a layman it seems odd that so many are worried about global warming even if it turns out to be true.

Joel Shore
September 15, 2009 7:00 pm

John Phillips: The latest thinking concerning the interglacial is this one would, left to its own devices, likely last about another 50,000 years: http://www.sciencemag.org/cgi/content/short/297/5585/1287 It is also generally understood that we have already pumped enough greenhouse gases into the atmosphere to stop another glacial period from occurring at least in the near term.
You should also understand that a slide into a glacial period generally happens rather slowly. The rate is less than 0.1 C/century. By contrast, the warming is currently running about 0.16 C/decade…or more than 10 times as fast. Future generations will have lots of time to worry about coming glacial periods. In the meantime, we have to worry about what is going to happen on the scale of decades to centuries!

Phlogiston
September 15, 2009 9:37 pm

Joel Shore to Richard S. Courtney:
“in the strange world that you inhibit” – dont you mean “inhabit”? Interesting Freudian slip.
Richard S. Courtney:
“Firstly, the Earth is constrained within close limits of global temperature in each of two stable states; viz. glacial and interglacial. And its temperature has been the same within narrow bounds in each of those stable states throughout the ~2.5 billion years since the Earth gained an oxygen-rich atmosphere.”
Richard went on to discuss equilibrium, oscillation and harmonics and I believe this is the right way to approach this issue. We are dealing with non-linear or non-equilibrium pattern formation. “Seeking equilibrium but never finding it” is exactly right.
One common feature of non-linear systems at the boundary of linearity and chaos is the STRANGE ATTRACTOR. For an explanation of this look at:
http://en.wikipedia.org/wiki/Attractor
Strange attractors are valleys in a landscape of possible states in a non-equilibrium system (where the vertical scale is inverse probability). Such systems frequently pop between stable states. Glacial and interglacial are strange attractors.
The robustness and stability of the system to peturbation, such as the change in sun output, that Richard mentioned, are classic and expected features of the non-equilibrium / non-linear system.
We need to snap out of this linear catholic logic and understand that this is a non-equilibrium / non-linear quasi chaotic system. No single factor – least of all CO2 – will drive the whole system – except for something large enough like a flood-basalt event of the Indian or Siberian type.
Biologists are beginning to understand this with the development of “systems biology” which breaks the trend for championing a single hero gene or homone or causative signalling pathway, but instead recognises a multiply interlinked spider-web of factors and instead probes the system for sensitivity to individual factors or agents.
This systems approach is needed for climate study, recognising non-equilibrium dynamics.
Finally about the length of interglacials. John Phillips – why 20k years? If you look at the Vostok core, the recent interglacials (around -128, 238 and 323 kyrs) are spikes with complex shapes and no obvious duration can be concluded. The one at -238 kyrs is a spike with < 5 kyrs duration. The ones at -128 and -323 kyrs are a spike followed by a slightly lower plateau – then another fall. Do you define length as FWHM? THis would involve a baseline global temperature much colder than the present.
In view of it being a non-equilibrium system there is no way of telling when we will plop back to glacial or semi-glacial except by looking at the pattern. For the current interglacial to continue for 50k yrs as Joel Shore suggests would completely break the pattern of the last 400k yrs and would thus seem improbable.
Joel: "we have already pumped enough greenhouse gases into the atmosphere to stop another glacial period from occurring at least in the near term."
How do you reconcile that assertion with this fact: During start of the rapid descents to colder temperature immediately after each of the recent interglacial spikes (-128, 238, 323 kyrs) the CO2 level in the atmosphere was in each case as high or higher than today. It did not stop the slide then. It wont now.

masonmart
September 15, 2009 11:49 pm

Oh poor Joel, you take such a pasting and yet keep bouncing back up like one of those round bottomed clowns in a bird cage. Yes of course AGW is a conspiracy and one in which you have to ignore present and history and believe models which are programmed to show catastrophic warming. You of course haven’t read Plimer’s exceptional book yet I’ve read all of the so called rebuttals and they have no real substance or credibility especially being written by known AGW extremists like Monbiot from the Guardian and his stooges so please be serious about “screamer” rebuttals which are predominantly ad hominem. Monbiot refused to debate the issues with Plimer (as all AGW proponents refuse debate with knowledgeable skeptics) and I, who know nothing, would gladly debate Climate change with Monbiot. He wouldn’t even get to be next to the sink with my wife. You haven’t answered any of my questions neither just the same old AGW mantras which have only one basis, yes you can’t see it now, no you have never been able to see it, yes it is falsified daily, no it has little provable scientific basis but believe me it will happen because the models say it will.
Of course those quotes are from the UN/IPCC and were linked in a post on a newer thread. What’s the problem Joel, you don’t read any books which challenge the AGW weak hypothesis and you don’t read posts on here. Do I have to say that you have credibility at the same level of eco-loonies like Monbiot.
Read Plimer and we’ll discuss the issues but until then please don’t comment on what is in it especially its spelling mistakes and rhetorical statements taken at face value. Even better, discuss them with Plimer, my bet is that he’d eat you for breakfast.

anna v
September 16, 2009 12:36 am

Joel Shore (19:00:53) :
John Phillips: The latest thinking concerning the interglacial is this one would, left to its own devices, likely last about another 50,000 years: http://www.sciencemag.org/cgi/content/short/297/5585/1287 It is also generally understood that we have already pumped enough greenhouse gases into the atmosphere to stop another glacial period from occurring at least in the near term.
Proof is in the pudding: the existing CO2 ,though growing ,has not managed to stop a cooling PDO and it will stop the ice age?,

Richard Hill
September 16, 2009 1:14 am

masonmart (23:49:30) :
re Joel
…”You of course haven’t read Plimer’s exceptional book yet I’ve read all of the so called rebuttals and they have no real substance or credibility especially being…”
I have read Plimers book cover to cover. Twice. It is a good read.
I havnt read all the rebuttals, but I myself found Plimer’s take on CO2
from volcanoes a bit out of line. He says that there is vast output
of CO2 from volcanoes. This isnt supported by references in his book,
even though he has plenty of references backing most other assertions.
Somebody suggested that he may have confused CO2 with SO2.
A Professor of Geology confused on something so basic?
Anyway I’d like to see more on this specific item from Plimer.

Richard S Courtney
September 16, 2009 1:39 am

Phlogiston:
Sincere and grateful thanks for your comments. It pleases me that your comments demonstrate that at least one person has chosen to evaluate my contribution and not to be deflected from that consideration by Joel Shore’s smokescreen of bluster, untruths and evasions.
Science is about acknowledging we have no certainty and merely have a best understanding in the light of present knowledge. But political activity is about asserting certainty where none exists.
In my opinion we need to oppose the perversion of science by political activity, and we need to oppose it with every tool at our disposal.
Importantly, we need effective tools for the defence of science against political activity, and I would like to find some.
Therefore, those of us who are concerned to stop political objectives distorting scientific investigation need to find effective responses to Joel Shore and his fellows. Clearly, my presentation of logic, facts and reason were not effective: they rolled off him like water from a duck’s back.
So, I hope you and others will note whether Joel Shore responds to your question and attempts to answer it. Addressing whatever answer he provides to you – or noting his failure to provide an answer – is important because his behaviour here is typical of AGW-advocates. If we cannot convince him of the enquiring nature of science then it is not likely we can convince others like him.
We need to find effective tools to defend science against political activity.
Richard

Richard S Courtney
September 16, 2009 2:20 am

Stephen Wilde:
You ask me:
“the fact that we still have liquid oceans after billions of years suggests that it was those very changes in the speed of the hydrological cycle which prevented the varying geography of the continents from upsetting the basic equilibium set by the temperature (taking a global average of course) at which evaporation from the ocean surface occurs.
No need to speculate. We have liquid oceans. They can only be maintained if changes in the speed of the hydrological cycle can neutralise everything thrown at the system by astronomic and geological events over billions of years.
What else could possibly do it ?”
I answer that I do not know, and I remind that I stated good reasons why the hydrological cycle is a probable explanation. I then said:
“So, the important question is:
Why does the climate cycle exhibit such a robust bi-stability that global temperature has not been discernibly affected by ~30 per cent increase to solar variation, major changes to the distributions of land masses, and very fluctuating atmospheric CO2 concentrations over the last ~2.5 billion years?
I do’nt know the answer to that question, nobody does. It needs investigation, and study of the hydrological cycle is an obvious place to start that investigation.”
However, the fact that we cannot think of another cause is not evidence that the postulated cause is the true cause. That is the logical fallacy of ‘argument from ignorance’, and it is the mistake made by AGW-advocates.
In the Middle Ages experts said, “We don’t know what causes crops to fail: it must be witches: we must eliminate them.” Now, experts say, “We don’t know what causes global climate change: it must be emissions from human activity: we must eliminate them.” Of course, they phrase it differently saying they can’t match historical climate change with known climate mechanisms unless an anthropogenic effect is included. But evidence for this “anthropogenic effect” is no more than the evidence for witches.
Similarly, at this stage, the dominance of the hydrological cycle over the entire climate system has no more evidence than the evidence for AGW.
I think the dominance of the hydrological cycle is probably right, but that is merely an opinion and not a fact. In a post that is awaiting moderation I have pointed out that it is a denial of the scientific method to adopt certainty where none exists.
So to answer your specific question; i.e.
“What else could possibly do it ?”
I reply
I do not know but I want to know.
I hope that answer is acceptable.
Richard

Stefan
September 16, 2009 2:24 am

Just started reading The Black Swan and in the opening pages the author makes some interesting statements about the future and the past.
When we look at things in retrospect, it always looks like we understand what happened. When we write history books, it is always easy to leave out whatever appears in hindsight to have been irrelevant. When we evaluate the results of our predictions, it is always easy to reevaluate what was inconsequential about our predictions and what was important, to the extent that the prediction is portrayed as having been essentially correct. If the reevaluation is being done by experts, they have more tools for reevaluating the results in a way that makes the expert opinion continue to be correct.
Somehow, the climate has continued to confirm the models, the climate continues to be consistent with the models, as experts can identify the specific events that caused the particular variations in weather and short term climate, and once we take those into account, we can still see the long term consistency with the models.
So I have two questions. How do we tell the difference between a rational truth and a post-rationalised fiction? (See, CO2 could be a Black Swan to the Resilient Earth, after all, and the models might, unlikely as it seems, turn out to be right, after all). How would we know, when both sides can explain so much to their own satisfaction?
Second, doesn’t the inherent unpredictability of the future not mean that we need a different way of thinking about things? One which can work in sync with our natural inability to predict, rather than constantly trying to predict, believing we just need to be smarter and more expert when predicting? Like, calling them scenarios instead of predictions, and adding error bars and averages of model ensembles, and adding more model runs on bigger computers at finer resolution, and adding probability estimates to quantify the uncertainty, as if all this expertise was somehow compensating for our essential myopia? Like, working on developing upper body strength so that I can flap my arms hard enough to fly like a bird?
Remind me, Heisenberg Compensators, they’re just a Star Trek thing, right, they don’t actually exist?

bill
September 16, 2009 3:36 am

masonmart (23:49:30) :
Monbiot refused to debate the issues with Plimer (as all AGW proponents refuse debate with knowledgeable skeptics) and I, who know nothing, would gladly debate Climate change with Monbiot.
Monbiot has stated that he will not debate unless written answers are provided to his questions. These answers have not been provided therefore no debate.
As you have read Plimers book from which all answers may be obtained (according to Plimer) Perhaps you could answer both Plimer and Monbiots questions here?
Q to Plimer
1. The first graph in your book (Figure 1, page 11). How do you explain the discrepancy between the HadCRUT3 figure and your claim?
2. Figure 3 (page 25) is a graph purporting to show that most of the warming in the 20th Century took place before 1945 closely resembles the global temperature graph in the first edition of Martin Durkin’s film The Great Global Warming Swindle – since retracted as false. What is the source for the graph you used?
3. You maintain that “the last two years of global cooling have erased nearly thirty years of temperature increase.” (page 25)
a. Please give the source for your claim.
b. How do you reconcile it with the published data?
In your discussion of global temperature trends, you maintain that “NASA now states that […] the warmest year was 1934.” (p99)
a. Are you aware that this applies only to the United States?
b. Was this a mistake or did you deliberately confuse these two datasets?
5. Discussing climate trends in the Arctic, you state that “the sea ice has expanded” (p198). Again, you give no reference.
a. Please give a source for this claim.
b. How do you explain the discrepancy between this claim and the published data? http://nsidc.org/arcticseaicenews/
6. You state that “If the current atmospheric CO2 content of 380 ppmv were doubled to 760 ppmv […] [a]n increase of 0.5C is likely” (p366). Again you give no source. Please provide a reference for this claim.
7. You claim that “About 98% of the greenhouse effect in the atmosphere is due to water vapour.” (p370). Ian Enting says “In some cases the numbers given by Plimer are exaggerated to such an extent as to imply that without water vapour, Earth’s temperature would be below absolute zero – a physical impossibility.”
a. Please provide a reference for your claim about water vapour.
b. Please explain how your two statements (98% of the greenhouse effect is caused by water vapour and 18C can be attributed to CO2) can both be true
8. You cite a paper by Charles F Keller as the source of your claim that “satellites and radiosondes show that there is no global warming.” (p382)
a. How did you manage to reverse the findings of this paper?
b. Was it a mistake or was it deliberate misrepresentation?
9. You state “The Hadley Centre in the UK has shown that warming stopped in 1998″ (p391). Again you produce no reference.
a. Please give a reference for your claim.
b. How do you explain the discrepancy between your account of what the Hadley Centre says and theirs?
10. You state that “Volcanoes produce more CO2 than the world’s cars and industries combined.” (p413)
a. Please provide a reference for your claim.
b. How do you explain the discrepancy between this claim and the published data?
11. You maintain that “termite methane emissions are 20 times potent than human CO2 emissions”. (p472) Please provide a source for this claim.
Plimer to Monbiot
1. From the distribution of the vines, olives, citrus and grain crops in Europe, UK and Greenland, calculate the temperature in the Roman and Medieval Warmings and the required atmospheric CO2 content at sea level to drive such warmings. What are the errors in your calculation? Reconcile your calculations with at least five atmospheric CO2 proxies. Show all calculations and justify all assumptions.
2. Tabulate the CO2 exhalation rates over the last 15,000 years from (i) terrestrial and submarine volcanism (including maars, gas vents, geysers and springs) and calc-silicate mineral formation, and (ii) CH4 oxidation to CO2 derived from CH4 exhalation by terrestrial and submarine volcanism, natural hydrocarbon leakage from sediments and sedimentary rocks, methane hydrates, soils, microbiological decay of plant material, arthropods, ruminants and terrestrial methanogenic bacteria to a depth of 4 km. From these data, what is the C12, C13 and C14 content of atmospheric CO2 each thousand years over the last 15,000 years and what are the resultant atmospheric CO2 residence times? All assumptions need to be documented and justified.
3. From first principles, calculate the effects on atmospheric temperature at sea level by changes in cloudiness of 0.5%, 1% and 2% at 0%, 20%, 40%, 60% and 80% humidity. What changes in cloudiness would have been necessary to drive the Roman Warming, Dark Ages, Medieval Warming and Little Ice Age? Show all calculations and justify all assumptions.
4. Calculate the changes in atmospheric C12 and C13 content of CO2 and CH4 from crack-seal deformation. What is the influence of this source of gases on atmospheric CO2 residence time since 1850? Validate assumptions and show all calculations.
5. From CO2 proxies, carbonate rock and mineral volumes and stable isotopes, calculate the CO2 forcing of temperature in the Huronian, Neoproterozoic, Ordovician, Permo-Carboniferous and Jurassic ice ages. Why is the “faint Sun paradox” inapplicable to the Phanerozoic ice ages in the light of your calculations? All assumptions must be validated and calculations and sources of information must be shown.
6. From ocean current velocity, palaeotemperature and atmosphere measurements of ice cores and stable and radiogenic isotopes of seawater, atmospheric CO2 and fluid inclusions in ice and using atmospheric CO2 residence times of 4, 12, 50 and 400 years, numerically demonstrate that the modern increase in atmospheric CO2 could not derive from the Medieval Warming.
7. Calculate the changes in the atmospheric transmissivity of radiant energy over the last 2,000 years derived from a variable ingress of stellar, meteoritic and cometary dust, terrestrial dust, terrestrial volcanic aerosols and industrial aerosols. How can your calculations show whether atmospheric temperature changes are related to aerosols? All assumptions must be justified and calculations and sources of information must be shown.
8. Calculate 10 Ma time flitches using W/R ratios of 10, 100 and 500 for the heat addition to the oceans, oceanic pH changes and CO2 additions to bottom waters by alteration of sea floor rocks to greenschist and amphibolite facies assemblages, the cooling of new submarine volcanic rocks (including MORBs) and the heat, CO2 and CH4 additions from springs and gas vents since the opening of the Atlantic Ocean. From your calculations, relate the heat balance to global climate over these 10 Ma flitches. What are the errors in your calculations? Show all calculations and discuss the validity of any assumptions made.
9. Calculate the rate of isostatic sinking of the Pacific Ocean floor resulting from post LGM loading by water, the rate of compensatory land level rise, the rate of gravitationally-induced sea level rise and sea level changes from morphological changes to the ocean floor. Numerically reconcile your answer with the post LGM sea level rise, oceanic thermal expansion and coral atoll drilling in the South Pacific Ocean. What are the relative proportions of sea level change derived from your calculations?
10. From atmospheric CO2 measurements, stable isotopes, radiogenic Kr and hemispheric transport of volcanic aerosols, calculate the rate of mixing of CO2 between the hemispheres of planet Earth and reconcile this mixing with CO2 solubility, CO2 chemical kinetic data, CO2 stable and cosmogenic isotopes, the natural sequestration rates of CO2 from the atmosphere into plankton, oceans, carbonate sediments and cements, hydrothermal alteration, soils, bacteria and plants for each continent and ocean. All assumptions must be justified and calculations and sources of information must be shown. Calculations may need to be corrected for differences in 12CO2, 13CO2 and 14CO2 kinetic adsorption and/or molecular variations in oceanic dissolution rates.
11. Calculate from first principles the variability of climate, the warming and cooling rates and global sea level changes from the Bölling to the present and compare and contrast the variability, maximum warming and maximum sea level change rates over this time period to that from 1850 to the present. Using your calculations, how can natural and human-induced changes be differentiated? All assumptions must be justified and calculations and sources of information must be shown.
12. Calculate the volume of particulate and sulphurous aerosols and CO2 and CH4 coeval with the last three major mass extinctions of life. Use the figures derived from these calculations to numerically demonstrate the effects of terrestrial, deep submarine, hot spot and mid ocean ridge volcanism on planktonic and terrestrial life on Earth. What are the errors in your calculations?
13. From the annual average burning of hydrocarbons, lignite, bituminous coal and natural and coal gas, smelting, production of cement, cropping, irrigation and deforestation, use the 25µm, 7µm and 2.5µm wavelengths to calculate the effect that gaseous, liquid and solid H2O have on atmospheric temperature at sea level and at 5 km altitude at latitudes of 20º, 40º, 60º and 80ºS. How does the effect of H2O compare with the effect of CO2 derived from the same sources? All assumptions must be justified and calculations and sources of information must be shown.
Remember Plimer says his questions’ answers can be found in his books.
So we have Monbiot mainly requesting sources of Plimer’s eronious statements (surely a simple request to answer?) and Plimer requesting a journalist to provide original scientific research and to derive models from first principles. As Monbiot admits – he is not a research scientist so the questions are outside his knowledge.
Some of Monbiots questions (have now been answered on realclimate)
http://www.monbiot.com/archives/2009/09/14/correspondence-with-ian-plimer/

bill
September 16, 2009 4:03 am

anna v (00:36:51) :
Proof is in the pudding: the existing CO2 ,though growing ,has not managed to stop a cooling PDO and it will stop the ice age
IFF radiation input/output to the earth is BALANCED (in=out) global warming/cooling will not happen. There will be weather, seasons, PDOs etc. but IFF in=out the averaged temperature over decades will be constant. Short term Temperatures will fluctuate!!!!!!!
If in is not equal to out then temperatures averaged over decades will show a rise/fall. If in-out difference is small then average temperature change will be small compared to weather, seasons, PDO etc. BUT there is still a trend up or down which will be obvious when temperatures are averaged over long enough periods. This is where we are. Weather, seasons, PDOs happen giving wandering temperature but do not negate small continuous changes to the in/out balance.
The flip from ice age to temperate will be caused by a long term in/out balance change not by weather, seasons, PDO or other transient events.

Invariant
September 16, 2009 4:17 am

Phlogiston (21:37:15) : We need to snap out of this linear catholic logic and understand that this is a non-equilibrium / non-linear quasi chaotic system.
Certainly! It is so interesting and entertaining and to read such cool comments here at WUWT. The term “linear catholic logic” is wonderful! Note that I must agree with Dr. Svalgaard that in most cases we need to use human based linear logic because that is our strong side. However, it is indeed possibly to do accurate calculations and predictions with nonlinear logic as well, and this is not jumping-to-conclusion in a disordered and intuitive manner. Instead it is an acknowledgement of the well known fact that a small variation may lead to little change to the overall dynamics within one drainage basin:
http://en.wikipedia.org/wiki/Drainage_basin
However, try to make a small change that makes the system jump to another drainage basin – the resulting dynamic will be entirely different. This is the main difference between linear and nonlinear logic.

Richard S Courtney
September 16, 2009 4:56 am

Joel Shore:
It is becoming increasingly difficult to accept the disconnect between your assertions and empirical reality. You provide another unreal assertion by saying:
“You should also understand that a slide into a glacial period generally happens rather slowly. The rate is less than 0.1 C/century. By contrast, the warming is currently running about 0.16 C/decade…or more than 10 times as fast.”
I wonder where you get such ideas because they cannot be found in the scientific literature.
Transition between glacial and interglacial states consists as a series of rapid ‘flickers’ between the glacial and interglacial states until the global climate remains fixed in one of the two states. And the rate of temperature change during the transition of a ‘flicker’ is much higher than 0.1 C/century. The Younger Drias is one such ‘flicker’ event.
Please see
http://www.ncdc.noaa.gov/paleo/abrupt/data4.html
for an account of the Younger Drias from a source you may be willing to accept.
That account says;
“The end of the Younger Dryas, about 11,500 years ago, was particularly abrupt. In Greenland, temperatures rose 10° C (18° F) in a decade (Figure 6; Cuffey and Clow, 1997).”
Is it necessary to point out to you that “10° C (18° F) in a decade” is much much more than “0.1 C/century”?
And that account also says:
“The Younger Dryas is clearly observable in paleoclimate records from many parts of the world”
so please do not try the usual ‘warmist excuse’ that historic temperature changes were not global.
A useful discussion of the ‘flickers’ during the transition from the most recent glacial to the present interglacial state can be seen in the WUWT thread at
http://wattsupwiththat.com/2009/02/26/%E2%80%9Dclimate-flicker%E2%80%9D-at-the-end-of-the-last-glacial-period/
I add that the existence of these ‘flickers’ is another piece of empirical evidence for the bi-stability of the global climate system. If the system is not bi-stable then why does the rapidly changing global temperature of a flicker always stop changing when it reaches the glacial or interglacial condition? As the saying goes, enquiring minds want to know.
Richard

September 16, 2009 5:19 am

bill:

Monbiot has stated that he will not debate unless written answers are provided to his questions. These answers have not been provided therefore no debate.

Well, isn’t he special… NOT. George Monbiot is nothing but a cowardly alarmist who tucks his tail between his legs at the first sign of someone who knows about the subject, which appears to be typical of all alarmists. He is deathly afraid that by debating he will show his ignorance of the subject, or he is afraid he will get tangled up in his lies. Probably both.
Hell of a HE-RO you’ve got there, bill.
Plimer hasn’t hidden out until pre-screened questions are answered. It is Monbiot [literally: “Moonbat”] who is hiding out, not Plimer. This is typical of the whole moonbat/alarmist crowd, from Michael Mann, to Al Gore, to Gavin Schmidt, to William Connolley, to Rajenda Pachauri, and everyone else spreading the CO2=AGW canard. They scurry away like cockroaches when the light is turned on them.
When they all hide out, you know they’re selling a pig in a poke.
[And please, referring to the no-account realclimate blog as any kind of authority reeks of desperation. It’s like having Pee Wee Herman narrate the Mike Tyson/Evander Holyfield fight.]

bill
September 16, 2009 5:27 am

Richard S Courtney (04:56:03) :
And that account also says:
“The Younger Dryas is clearly observable in paleoclimate records from many parts of the world”
so please do not try the usual ‘warmist excuse’ that historic temperature changes were not global.

it may be in many parts of the world but not all. Ice core data from antarctica shows no younger dryas 20C drop just a dip of 2C:
http://img11.imageshack.us/img11/6826/iceage040kkq1.jpg

RR Kampen
September 16, 2009 5:27 am

Re: Smokey (05:19:26) :
“Then George Monbiot is nothing but a cowardly alarmist, which is typical of all alarmists. He is deathly afraid that by debating he will show his ignorance of the subject, or he is afraid he will get tangled up in his lies. Probably both.”
He wants written debate in order to expose his ignorance – or knowledge – in a way everybody can see and attack for the rest of his life. That is not cowardly. It is courageous.

anna v
September 16, 2009 5:31 am

bill (04:03:11) :
And?
Still the CO2 contribution is so weak it cannot reverse the PDO. Joel suggests it will reverse the coming ice age .

anna v
September 16, 2009 5:36 am

And if they ( AGWers) do not hide out they take a page out of the diary of a student I used to know: he studied in depth a specific chapter ignoring the bulk of the course program. When the question came he would ignore it and write a brilliant essay on the subject he knew. This worked better in oral exams.

bill
September 16, 2009 5:38 am

Smokey (05:19:26) :
Then George Monbiot is nothing but a cowardly alarmist, which is typical of all alarmists. He is deathly afraid that by debating he will show his ignorance of the subject, or he is afraid he will get tangled up in his lies. Probably both.
Hell of a HE-RO you’ve got there, bill.

I have no heroes. I believe few people. But Monbiot and many others have shown Plimer to have made claims without stating sources. This as you have said here many times is unexceptable. It is important to get the truth on the table in written form befor the shouting starts.
Monbiot admits he is not a climate scientist so opposing Plimmer will be difficult. Plimmer has a good handle on irrelevant tech-speak.
As my questions above were not answered I will ask you.
1. what do governments expect out of following AGW (it isn’t popularity! More taxes=loss of next election).
2. What do researchers expect. Funding will only last a few years until AGW is disproved (in your view) then their names will become a source of derision like Charles Dawson (piltdown man). I would suggest that most scientists would not aim for this ending to their lives.

Stefan
September 16, 2009 5:41 am

Richard S Courtney (04:56:03) :
Transition between glacial and interglacial states consists as a series of rapid ‘flickers’ between the glacial and interglacial states…
Is it necessary to point out to you that “10° C (18° F) in a decade” is much much more than “0.1 C/century”?

These kinds of things are what has worried me about the AWG/IPCC view of climate as this slowly changing and largely predictable system, with enough preparation time to avert events 100 years out. It completely removes from sight the far greater danger of sudden abrupt enormous unforeseeable changes inside 10 years.
The realisation that such changes have occurred should be the one thing that climatology screams about. Where are our backup systems? How would we survive that? But greenie culture frames the problem in terms of their favorite values and images, so it is about joining together, cooperating, bringing harmony and balance, reducing greed and selfishness. Problems that require a different worldview don’t exist for them.

bill
September 16, 2009 5:43 am

anna v (05:31:58) :
Still the CO2 contribution is so weak it cannot reverse the PDO. Joel suggests it will reverse the coming ice age .

Assume the ice age would come in 1000 years
Assume AGW is 0.1C/decade
Assume no neg feedback
Global temps would be 10C higher in 1000 years. There is a good chance this will prevent an Ice age!
The assumptions are not good but you see the reasoning?

September 16, 2009 5:44 am

RR Kampen (05:27:45):

[Monbiot] wants written debate in order to expose his ignorance – or knowledge – in a way everybody can see and attack for the rest of his life. That is not cowardly. It is courageous.

‘Courageous’?? Are you kidding? Mondiot is like Monty Python’s courageous knight: “Run away! Run away!”
A ‘written debate’ isn’t a debate at all. It’s correspondence. Actual debate is what terrifies alarmists.

Sandy
September 16, 2009 6:04 am

“2. What do researchers expect. Funding will only last a few years until AGW is disproved (in your view) then their names will become a source of derision like Charles Dawson (piltdown man). I would suggest that most scientists would not aim for this ending to their lives.”
Hrrumph ! It is obvious that there are many who will go with the flow for funding now and will quietly slide away as the howls of derision rise. These guys are scientists, not priests and moral fibre is not part of the selection process.
I expect that many of the grant-chasers now will become the witch-finders when the lunacies of alarmism become universally acknowledged and science has to rebuild its credibility.
The psychology of why people will vigorously defend somebody else’s scientific hypotheses while refusing to learn the science so as to be able reason it for themselves, is a book waiting to be written.

September 16, 2009 7:03 am

Thanks to Watts Up With That? for the English translation of this article.
Some months ago, I published an article on Coccolithphores mentionning the carbon dioxide trapping capability of these microscopic algae and the negative feedback they have on the whole carbon cycle.
http://www.dofollownet.com/ScienceNature/Could_Cocolithphores_Save_The_Earth_From_Global_Warming
In one of the comments to this article, the site administrator mentionned the role that these algae were also playing in cloud formation:
” Coccolithophores play an important role in clouds formation, and the clouds have a negative feedback on phytoplankton growth cycle.
In fact, Coccolithophores release dimethyl sulphonioproprionate (DMSP) in the atmosphere, which later can convert into dimethyl sulphide (DMS), a cloud condensation promoter.”
I wonder if any model has ever included this complex mechanism in its prediction.

John Phillips
September 16, 2009 7:28 am

Thank you all, each one for addressing my questions. I’m a retired engineer, but no climate scientist. I can only imagine how many variables you guys have to deal with. Just want to let you all know how much I enjoy reading these discussion threads. Even though we may not be in the dominant discipline of a discussion, most scientists and engineers can somewhat follow a technical discussion at least a little. I am usually just a reader and rarely comment or have a question. Not sure, but there may be thousand of others like me. Again thanks.

Joel Shore
September 16, 2009 8:55 am

Richard S Courtney: My understanding is that the rapid climate changes of which you speak were large changes in local conditions (likely due to changes in oceans currents and such) but with little effect on the global temperature. If you have evidence otherwise, I would be curious to hear it.
As for your rantings in your post of 01:39:21, I find the irony pretty rich when you talk about trying to “oppose the perversion of science by political activity”.
Sincere and grateful thanks for your comments. It pleases me that your comments demonstrate that at least one person has chosen to evaluate my contribution and not to be deflected from that consideration by Joel Shore’s smokescreen of bluster, untruths and evasions.
Science is about acknowledging we have no certainty and merely have a best understanding in the light of present knowledge. But political activity is about asserting certainty where none exists.
In my opinion we need to oppose the perversion of science by political activity, and we need to oppose it with every tool at our disposal.
Importantly, we need effective tools for the defence of science against political activity, and I would like to find some.
Therefore, those of us who are concerned to stop political objectives distorting scientific investigation need to find effective responses to Joel Shore and his fellows. Clearly, my presentation of logic, facts and reason were not effective: they rolled off him like water from a duck’s back.
So, I hope you and others will note whether Joel Shore responds to your question and attempts to answer it. Addressing whatever answer he provides to you – or noting his failure to provide an answer – is important because his behaviour here is typical of AGW-advocates. If we cannot convince him of the enquiring nature of science then it is not likely we can convince others like him.
We need to find effective tools to defend science against political activity.

Joel Shore
September 16, 2009 9:21 am

Whoops…Ignore everything after the first paragraph of my previous post, which was sent in prematurely and consists mainly of my copy of Richard’s statements that I was planning to respond to.
I’ll have more on that later.

September 16, 2009 9:46 am

Joel Shore (08:55:04) has gone off the deep end, right into Projectionland.
It is the lavish pouring of tax money, 99% into the AGW side, and the outside funding from George Soros, the Tides Foundation, Fenton Communications, Heinz-Kerry, and similar Leftist/Marxist individuals and groups that feeds the bogus AGW science. Without that money, and lots of it, the fake AGW propaganda would quickly die on the vine.
It is the political activity by Hansen and others [always those on the Left], breathlessly reported by their enablers in Big Media, that has perverted climate science. The blame must be laid directly at the feet of those who lie every day about what is happening, when they know full well that every event is explained by natural climate variation, not by fraud-based AGW.
The people pushing AGW are stealing from the taxpayers for one simple reason: because they can. That doesn’t make them any less dishonest. They’ve learned to game the system, in part by using their tools to re-post AGW propaganda on various sites. Promoting the AGW agenda while presumably being paid by taxpayers for honest work is no different than the Attorney General refusing to prosecute voter intimidation simply because of the skin color of those doing the intimidating.
Posting here that “We need to find effective tools to defend science against political activity” is blatantly disingenuous. Instead, that message should be posted on all the alarmist blogs — where it might do some good. Here, we already know what’s going on. If you aren’t part of the solution, you are definitely part of the problem.

Richard S Courtney
September 16, 2009 9:59 am

Joel Shore:
You have done it again!
I wrote:
“And that account also says:
“The Younger Dryas is clearly observable in paleoclimate records from many parts of the world”
so please do not try the usual ‘warmist excuse’ that historic temperature changes were not global.”
And you responded:
“Richard S Courtney: My understanding is that the rapid climate changes of which you speak were large changes in local conditions (likely due to changes in oceans currents and such) but with little effect on the global temperature. If you have evidence otherwise, I would be curious to hear it. ”
Jeeez! There are words for people who behave as you do but they cannot be used in this forum because there are ladies present.
Richard

bill
September 16, 2009 10:37 am

Richard S Courtney (09:59:43) :
Joel Shaw is asking you to provide evidence of your assertion that the younger dryas was global.
I have shown that it did not extend to the antarctic ice sheet.
http://img11.imageshack.us/img11/6826/iceage040kkq1.jpg
Data from vostok / gisp
You obviosly have evidence to back your claim from elsewhere. Please may we see it?

anna v
September 16, 2009 11:07 am

bill (05:43:56) :
“anna v (05:31:58) :
Still the CO2 contribution is so weak it cannot reverse the PDO. Joel suggests it will reverse the coming ice age .”
Assume the ice age would come in 1000 years
Assume AGW is 0.1C/decade
Assume no neg feedback
Global temps would be 10C higher in 1000 years. There is a good chance this will prevent an Ice age!
The assumptions are not good but you see the reasoning?

The “reasoning” is specious. It is assuming that a linear trend can truly describe what is a chaotic non linear system, and that for 10000 years.
All roads have to take the first step. Already from first step, these last ten years , the worm has turned and the linear approximation is off ( not that for a physicist this would not be self evident even without data, but it is good that the data is there). That is what I mean that “CO2 cannot reverse the PDO”.

Paul Vaughan
September 16, 2009 11:49 am

anna v (00:36:51) “Proof is in the pudding: the existing CO2 ,though growing ,has not managed to stop a cooling PDO and it will stop the ice age?”
Lol– good one Anna.

Paul Vaughan
September 16, 2009 12:01 pm

Re: Phlogiston (21:37:15)
It was the time that I spent (years ago) studying evolutionary biology & population genetics that made me realize much of what you are saying. My impression in following these threads is that scientists in some disciplines do not encounter (or at least are reluctant to acknowledge) sheer complexity. Biologists are certainly in no position to deny it.

Paul Vaughan
September 16, 2009 12:36 pm

Invariant (04:17:50) “However, try to make a small change that makes the system jump to another drainage basin – the resulting dynamic will be entirely different. This is the main difference between linear and nonlinear logic.”
…and, importantly, once the conditional-dependencies are worked out (i.e. what causes jumps between basins of attraction), there may be opportunity for linear expression.
Example: prediction of mainstream human behaviour by an observer who is unaware of ‘the week’, statutory holidays, & vacations. The discovery of vacations, in particular, might constitute a major breakthrough in explaining correlation-breakdowns.
Can we imagine the derision of the conventionalists prior to that moment?
“Look here – on Wednesday, Dec. 25 – your model fails – I dismiss your nonsense…”
If only people had the patience to manually use multi-dimensional coplots rather than rely on multivariate statistical algorithms that cannot see beyond narrow assumptions… (‘Coplot’ is short for ‘conditioning plot’.)
Of course if the masses were able to think conditionally, that might cause a problem for people shouting the following:

“Climate change could be disastrous for global health”
http://www.ctv.ca/servlet/ArticleNews/story/CTVNews/20090916/climate_change_090916/20090916?hub=Health
“A weak response to climate change could be catastrophic for international health, leading doctors said in two British medical journals Wednesday.”
“We call on doctors to demand that their politicians listen to the clear facts that have been identified in relation to climate change and act now.”
Key words: “clear facts” “demand” “act now”
Top key word: “demand”
Anyone promoting excessively-linear logic in the climate discussion is suspect? – perhaps. Conditioning variables should at least get lip-service.

Richard S Courtney
September 16, 2009 2:33 pm

Bill:
This is getting very silly. You write to me:
“Richard S Courtney (09:59:43) :
Joel Shaw is asking you to provide evidence of your assertion that the younger dryas was global.
I have shown that it did not extend to the antarctic ice sheet.
http://img11.imageshack.us/img11/6826/iceage040kkq1.jpg
Data from vostok / gisp
You obviosly have evidence to back your claim from elsewhere. Please may we see it?”
I CITED IT WHEN I MENTIONED IT.
I wrote (see above):
“Transition between glacial and interglacial states consists as a series of rapid ‘flickers’ between the glacial and interglacial states until the global climate remains fixed in one of the two states. And the rate of temperature change during the transition of a ‘flicker’ is much higher than 0.1 C/century. The Younger Drias is one such ‘flicker’ event.
Please see
http://www.ncdc.noaa.gov/paleo/abrupt/data4.html
for an account of the Younger Drias from a source you may be willing to accept.
That account says;
“The end of the Younger Dryas, about 11,500 years ago, was particularly abrupt. In Greenland, temperatures rose 10° C (18° F) in a decade (Figure 6; Cuffey and Clow, 1997).”
Is it necessary to point out to you that “10° C (18° F) in a decade” is much much more than “0.1 C/century”?
And that account also says:
“The Younger Dryas is clearly observable in paleoclimate records from many parts of the world”
so please do not try the usual ‘warmist excuse’ that historic temperature changes were not global.”
If you and Joel Shaw had bothered to read that item then you would have read this extract:
“The Younger Dryas is clearly observable in paleoclimate records from many parts of the world. In the Cariaco Basin north of Venezuela, for example, temperatures decreased about 3°C (5.5°F), although some of this cooling might have been due to greater upwelling of colder subsurface water (Lea et al., 2003). In many parts of the Northern Hemisphere tropics, conditions also became drier (Hughen et al., 2000; Wang et al., 2001). The story in Antarctica is somewhat different, however. The ice core record at Dome C (Figure 6) shows that climate changes in Antarctica were out-of-phase with those in the Northern Hemisphere (EPICA, 2004). At Dome C, the amount of the hydrogen isotope called deuterium, expressed here as δD, is proportional to temperature. The deuterium record indicates that, contrary to the Northern Hemisphere records, temperatures were relatively low prior to the Younger Dryas (a period called the Antarctic Cold Reversal) and rose during the Younger Dryas.”
Please note the following.
(a) Venezuela is not and then was not in the Northern Hemisphere.
and
(b) the Antarctic has been warming through the twentieth century but nobody claims there was not global warming in the twentieth century because of that.
“Global climate change” does not mean that everywhere changes in the same way and at the same rate. The Younger Dryas was global in the same way that twentieth century warming was global: i.e. the Anratarctic responded differently.
I now understand why you and Joel Shore ignore everything I write and respond to all my points with AGW-mantra. Sorry, but it is not in power to help you with your reading difficulties.
Richard

Richard S Courtney
September 16, 2009 2:40 pm

Bill:
A correction.
In my anger I wrongly wrote “Venezuela is not and then was not in the Northern Hemisphere”.
It is, just.
Sorry.
Richard

bill
September 16, 2009 4:43 pm

The text gives 3 examples of Younger Dryas event
Greenland (from plot) gives -20C dip
Cariaco Basin -4C dip (some possibly due to cold water upwelling)
Dome C rising temp
“Scientists have hypothesized that meltwater floods reduced the salinity and density of the surface ocean in the North Atlantic, causing a reduction in the ocean’s thermohaline circulation and climate changes around the world. Eventually, as the meltwater flux abated, the thermohaline circulation strengthened again and climate recovered. ”
This sounds like a NH cooling event (caused by change in thermohaline circ?) that cooled the globe progressively less toward the south.
Unless you have more data from other areas the YD seems to be NH

September 16, 2009 5:55 pm

“The Younger Dryas is clearly observable in paleoclimate records from many parts of the world. ”
My 2 cents
(A) This text from the paper seems to suggest it was a global phenomenon.
(B) The Antarctic currently is not showing the same warming that rest of the world is, which is similar to the YD.
and
(C) I seem to recall reading some where that the thermohaline may not work the way we all were taught as children, which means that this theory of the causes of the YD will have to be revisited and revised. . Hmmmm, I know I’ve seen that peer reviewed bit of science somewhere….

Joel Shore
September 16, 2009 6:35 pm

Smokey says:

Joel Shore (08:55:04) has gone off the deep end, right into Projectionland.

Actually, if you read the post following the one I wrote, you would know that my post was submitted in error prematurely and what you are quoting are actually words of Richard’s that I had copied in to respond to. But what I was going to say in response to Richard was this:
As for your rantings in your post of 01:39:21, I find the irony pretty rich when you talk about trying to “oppose the perversion of science by political activity”. Do you seriously believe that it is the National Academy of Sciences, the analogous bodies in all 12 of the other G8+5 nations, the AAAS, etc. who are perverting science and it is only the brave souls at right-wing think-tanks like the Heartland Institute, the George C. Marshall Institute, CATO, etc. who are fighting this perversion!?! That is certainly a bizarre view of the world.
And, yes, Smokey, I agree that there are environmental groups on the Left (although to label them “Marxist” is ludicrous) that are involved in this issue too. However, the difference between you “skeptics” and those of us in the mainstream scientific community is that you guys are essentially relying on the right-wing think-tanks and their small coterie of scientists, whereas we are not quoting Greenpeace or Sierra Club but actual prestigious scientific organizations.

Joel Shore
September 16, 2009 6:49 pm

Richard,
I am willing to be educated on the issue of whether some of these fast climate changes really involved large changes in the global temperature or whether they were just large shifts in heat from one location to another. (And, in fact, I am not sure if the science is totally settled on this.) But, just saying that there were large climate changes in different parts of the world doesn’t tell me much in regards to what the global temperature did, particularly when it seems some places cooled and others warmed.
anna v says:

Still the CO2 contribution is so weak it cannot reverse the PDO. Joel suggests it will reverse the coming ice age.

I don’t think there is yet evidence that the PDO has anything in particular to do with global temperatures. Most of downward trend in temperatures measured over a few years is on account of the La Nina that we just had. And, the sort of logic that says that CO2 contribution is weak if the trend can be downward over periods of several years is precisely the same as the claim that the seasonal cycle must be weak if we can have a weeklong period here in Rochester where the temperature trend is up instead the expected down trend. It is simply a lack of understanding of how a system with a linear (or approximately linear) trend on longtime scales and noise on shorter time scales behaves.
Stefan says:

These kinds of things are what has worried me about the AWG/IPCC view of climate as this slowly changing and largely predictable system, with enough preparation time to avert events 100 years out. It completely removes from sight the far greater danger of sudden abrupt enormous unforeseeable changes inside 10 years.

Well, lots of people are very worried about this. And, what is known about nonlinear systems is that applying a forcing to them makes it more likely that one will induce such a shift. This is the whole concept of tipping points. Of course, climate skeptics generally don’t believe in tipping points because they don’t like science that would argue for the necessity to constrain our emissions. Better to believe that the only way the climate can flip suddenly is completely spontaneously and so there is nothing we can do about it. (Or that the only way it would flip is through induced cooling…or whatever we can come up with that avoids facing the possibility that we should reduce our emissions.)

Phlogiston
September 16, 2009 7:13 pm

Richard S Courtney:
Thanks for your reply. It was quite gracious since – re-reading your earlier blogs, you comprehensively pre-empted my sermon on non-equilibrium systems, attractors and oscillations in your 15/09 posting (10:04:40).
Your point is correct, Science is in a deep epistemological crisis. Epistemology is the theory of knowledge – that many readers are unfamiliar with this term underlines the point. We are deluged with data, but the philosophical structure, discipline and world-view needed to make sense of it are in much shorter supply. It is far too easy – trivially easy – for “scientific” information and data to be subverted to any and every political agenda, and narratives generated to suit the required end result.
In this context the work of Carl Popper has urgent authority. I was amazed to read recently a warmist blogger openly attacking Popper saying “science got on fine without him before and will again”. He at least realized (perhaps subconsciously) that the full implications of Poppers main theories of scientific process actually kill stone cold dead the entire edifice of the CO2 global warming proposition. Not the hypothesis – by the way – the greenhouse scenario is valid as a hypothesis – but the way that it is being argued and validated, is anti-Popperian and scientifically flawed.
In his book Conjectures and Refutations Popper established two rules for scientific inquiry into the reality of things. They are:
(1) A hypothesis must be falsifiable if it is to be considered scientific,
(2) The scientific process of evidence gathering and argument must be deductive and not inductive.
It is the high-priestly status of computer modelling in the AGW proposition that totally abrogates Poppers rules. It is semi-detached from reality and evades in an eel-like manner any attempt to be tied down to objectively falsifiable tests – it just recodes and re-phrases. And what could be more inductive than computer predictive modelling – building assumption on assumption to the nth degree. Poppers requirement for deductive reasoning – keeping paths between observed fact and interpretation as short as possible – is based on a humility that is abundantly justified by the reality that many or most natural systems have non-equilibrium chaotic complexity that demands such humility and parsimony – in this his theories were prescient and ahead of their time.
Linear logic: if A then B; if B then C; if C then D; if D then E etc….
Structured logic: if A AND if B AND if C AND if D then: WORD

Paul Vaughan
September 16, 2009 9:18 pm

Joel Shore (18:35:47) “[…] the difference between you “skeptics” and those of us in the mainstream scientific community is that you guys are essentially relying on the right-wing think-tanks and […]”
Wo– completely lost me there. Drop some assumptions.

Paul Vaughan
September 16, 2009 9:35 pm

Re: Phlogiston (19:13:04)
You explain the reason why our society is in steep decline.

Stefan
September 17, 2009 1:06 am

Joel Shore (18:49:29) :
…what is known about nonlinear systems is that applying a forcing to them makes it more likely that one will induce such a shift. This is the whole concept of tipping points. Of course, climate skeptics generally don’t believe in tipping points because they don’t like science that would argue for the necessity to constrain our emissions. Better to believe that the only way the climate can flip suddenly is completely spontaneously and so there is nothing we can do about it. (Or that the only way it would flip is through induced cooling…or whatever we can come up with that avoids facing the possibility that we should reduce our emissions.)

I can understand the feeling that many will find AGW “inconvenient” to their way of life, and their ego attachment to material comfort will 100% blind them to facts. I understand that.
And for me, I’ve wrestled with the problems of ego for a decade or more. See, I take up spiritual practices, like Zen, and so you’re faced with rather subtle problems about ego and motivation. One of the hard problems, and nobody as far as I know has solved this one, is how do you tell if the teacher who’s supposed to be guiding you out of your own ego, isn’t him or herself at the effect of their ego?
It is a tough one, because the teacher can always say, “you’re just a selfish individual attached to your ego! and that’s why you won’t do what I say!” The teacher always has that ace, and can always use it. But how do you know that he or she isn’t just manipulating you for their own egoic needs?
This is what I’ve usually found quite naive about the AGW argument that big business and Western consumers are just willfully ignoring “evidence”. If you want to accuse people of selfish motivations, first start by showing that you are not selfish. First start by showing that you are not biased. First demonstrate that you are not influenced by subjective and cultural fashions.
Scientists are supposed to practice the scientific method. But the real world is messy and complicated, and good data is hard to come by, so whilst objective facts are available, how they are interpreted is up to the scientists, and that my friend, is a subjective judgement influenced to some extent by culture. And so when people say there has been a consensus by peer review, what that says is that there has been a great deal of peer pressure and group think. Now the group think might turn out to be right anyway, or it might turn out to be spectacularly wrong.
Don’t pretend that those who disagree only do so out of selfishness. You’re a human being too. Don’t pretend that a consensus proves truth, consensus is a social dynamic, and is not in itself an objective fact or data.
And yes, I am just as human as you.
As for tipping points, how many things do you think could induce a tipping point? Or is it only CO2?

Richard S Courtney
September 17, 2009 1:13 am

Bill:
Believe whatever you want. That is your right. But reality is what it is.
And reality is not affected by what you, Joel Shore, me, or anybody else chooses to believe.
Science is the method we use to to try to try to understand reality.
Clearly, you and Joel Shore do not understand the difference between scientific understanding and faith. Please read my response to Stefan’s question that I posted above a couple of day ago and is timed at 08:50:57. If you can understand that posting then you are at the start of understanding something about how scientific investigation is conducted.
The scientific method exists independent of any faith. Practice of the method may be imperfect because scientists are human and, therefore, their interpretations can be biased by their political and/or religious faith, but over time the effects of those imperfections become erased.
Imposition of political faith(s) on how science can be conducted has happened before; e.g. Lysnkoism, eugenics, etc. So, your attempt to pervert science by imposition of your faith in AGW has precedent. All such perversions of science have had dire effects. And AGW threatens similar dire (probably worse) effects.
Please reconsider what you are doing.
I put to you the plee that Cromwell put to Charles 1 when Cromwell was trying to avoid the English Civil War:
“I beg ye in the bowells of Christ to consider that ye may be wrong.”
Charles 1 refused to consider that possibility so the bloody and harmful Civil War ensued with resulting terrible loss of life, and Charles 1 lost both his Crown and his head to put it on.
Later, in attempt to avoid WW2, Churchill repeated that plee to Chamberlain also to no avail. He stood in the House of Commons and shouted:
“I beg ye in the bowells of Christ to consider that ye may be wrong.”
And we all now what happened after that.
Science always accepts that everything we think we know is merely the best understanding we have at present. All scientists know that we “may be wrong”. Again, please see my above reply to Stefan for an understanding of this.
But faith ascribes certainty where science refuses to accept certainty.
Believers in the AGW hypothesis are trying to distort science by imposing their faith on science. Those who try to adhere to the scintific method will defend against that perversion of science with everything at our disposal.
So, “I beg ye in the bowells of Christ to consider that ye may be wrong.”
Richard

Stefan
September 17, 2009 1:22 am

Richard S Courtney (08:50:57) :
[…]
But a theory remains a valid conclusion from the data until additional data clearly refutes the theory. And many good scientists cannot bring themselves to abandon an idea they have cherished even when the idea is clearly contradicted by additional data; for example, many clung to the phlogiston theory long after the evidence of Lavoisier’s work, and many now cling to the AGW hypothesis despite the evidence of ‘the missing hot spot’.
I hope this clarifies the matter.

Yes indeed, thank you.

Richard S Courtney
September 17, 2009 3:59 am

Phlogiston:
Thankyou. I agree.
Richard

Richard S Courtney
September 17, 2009 4:04 am

Joel Shore:
You say to me:
“just saying that there were large climate changes in different parts of the world doesn’t tell me much in regards to what the global temperature did, particularly when it seems some places cooled and others warmed.”
OK, I will agree that. So we agree that there was no global warming in the twentieth century because “there were large climate changes in different parts of the world doesn’t tell me much in regards to what the global temperature did, particularly when it seems some places cooled and others warmed”.
I await your confirmation of this agreement.
Richard

anna v
September 17, 2009 5:05 am

Joel Shore (18:49:29) :
anna v says:
” Still the CO2 contribution is so weak it cannot reverse the PDO. Joel suggests it will reverse the coming ice age.”
I don’t think there is yet evidence that the PDO has anything in particular to do with global temperatures. Most of downward trend in temperatures measured over a few years is on account of the La Nina that we just had. And, the sort of logic that says that CO2 contribution is weak if the trend can be downward over periods of several years is precisely the same as the claim that the seasonal cycle must be weak if we can have a weeklong period here in Rochester where the temperature trend is up instead the expected down trend. It is simply a lack of understanding of how a system with a linear (or approximately linear) trend on longtime scales and noise on shorter time scales behaves.

bold mine.
I will stop talking with you. You are either an undergraduate or a person with very little knowledge of differential equations, solutions thereof, boundary conditions etc. etc ( not to forget dynamical chaos). If you can look at the ice core records and talk about linear long term trends you are much deeper in the delusional system than I thought.

Sandy
September 17, 2009 6:40 am

“you are much deeper in the delusional system than I thought”
He has simply lost all respect for his own ignorance.
However, like a springy boxing ball he provides a good workout for honing one’s
opinion and how to express it.

Joel Shore
September 17, 2009 8:55 am

Richard S Courtney says:

OK, I will agree that. So we agree that there was no global warming in the twentieth century because “there were large climate changes in different parts of the world doesn’t tell me much in regards to what the global temperature did, particularly when it seems some places cooled and others warmed”.

You are confused between a necessary and a sufficient condition. What I am saying is that to determine what the global temperature did one has to go beyond just looking and finding changes in climate of one sort or another at different places on the Earth. For the twentieth century, we have good enough temperature records over the entire globe to determine what the global temperature did do to a reasonable degree of accuracy.
As to your larger point you make about faith and science and certainty and uncertainty: The fact is that science is never based on certainty because it is inductive. So, there is always uncertainty. The honest way to deal with this is to try to specify the certainty and uncertainty that one has about various parts of the science, which is what the IPCC does. It is not useful to say that because of uncertainty, we know nothing. (Or ,more to what actually seems to happen, because of uncertainty in regards to climate change, we should just assume its natural and there is no significant effect from greenhouse gases.)
And, while it may be true that some people on the side of the scientific consensus have made statements that sound overly certain (I try to avoid doing that but I am sure that I am not perfect), I think this is at least as prevalent on the other side…and, in fact, the certainty is often about things that I think are not just uncertain but are almost certainly false.
anna v says:

I will stop talking with you. You are either an undergraduate or a person with very little knowledge of differential equations, solutions thereof, boundary conditions etc. etc ( not to forget dynamical chaos). If you can look at the ice core records and talk about linear long term trends you are much deeper in the delusional system than I thought.

Well, I am not going to repeat what my qualifications are since I have said them before and it is easy enough to do a google search on me. However, I will merely point out to you the concept of a Taylor Series: Except at very special points, a curve can be well-approximated by a linear function over some interval. In the particular case that you quoted, I was talking both of the current rise in global temperatures and of the seasonal cycle during the fall, for which one could indeed fit pretty well to a linear function over a period of a few weeks. (I now realize that I left out the fact that I was talking about the fall in what you quoted, although I have certainly talked about the seasonal cycle in enough detail in previous posts for one to infer the meaning. Sorry if that confused you.)

E.M.Smith
Editor
September 17, 2009 9:37 am

Richard S Courtney (01:13:53) : Charles 1 refused to consider that possibility so the bloody and harmful Civil War ensued with resulting terrible loss of life, and Charles 1 lost both his Crown and his head to put it on.
Richard, this is sooo wrong. It ought to be:
…”and his head, upon which to put it”.
Other than that, perfect posting! 😉
Really.
Stellar.
anna v (05:05:25) :
Joel Shore (18:49:29) :
anna v says:
You are either an undergraduate or a person with very little knowledge of differential equations, solutions thereof, boundary conditions etc. etc ( not to forget dynamical chaos). If you can look at the ice core records and talk about linear long term trends you are much deeper in the delusional system than I thought.

Anna, you do a disservice to undergraduates with that comparison of Joel …
I like the phrase “deeper in the delusional system”. I may “borrow it”.
I have noticed a consistent difference between Warmers and Skeptics.
Skeptics regularly ask questions like: How do you know? Is this consistent? What is the quality of the data and measurement system? Do these conclusions drive from those data? What are the hidden assumptions? Is there evidence to support those assumptions? What alternative explanations would work as well with this data? Is this argument well structured, efficient, and clear?
Warmers seem to have only one real question: “Given this conclusion, what assumptions can I draw?” Occasionally supported by “How much must I torture the data to get it to confess that I am right?”
Before this need to discover the “best” assumptions, all else must fall. History, data, methods, consistency, even things like the erratic temperature history of the planet can get “ironed out” into a “linear trend”.
As a consequence we get what you have just experienced. Joel’s arguments are about as solid as warm jello. ANYTHING can be held up as “fact” even if completely inconsistent, even if not supported by the data, even if it is demonstrably false. Even if fabricated by fantastical “methods” like Mann and Hansen used. Because it is “the necessary assumption that must have been true” for the conclusion to be validated.
This, as you have noticed, is infuriating to folks who believe that causality must flow from data to analysis to conclusions in well supported steps and with only minimal and rational assumptions; and even then is subject to challenge.
I believe that is not a matter of “undergraduate” vs “Ph.D”. I think it is a matter of the nature of ones mind and the nature of the education it received. Hansen, IIRC, has a Ph.D – but a broken mind…
I can say that with some certainty. The code that looks like his in GIStemp is badly done and shows a very untidy mind. For example:
http://chiefio.wordpress.com/2009/08/29/gistemp-invnt-f-a-sympathy-plea/
One that has poor skills at ordering things, poor skills at clarity, disdain for others (no comments), a love of false complexity (variables chosen with deliberately confusing names), artificially complex and painfully cluttered, and several other faults of reasoning. It also shows a clear pattern of goal seeking to cherry pick values to validate his thesis (key values as parameters for easy tuning, tunable Reference Station Method limits with different sizes in different sections, tunable zone sizes, etc.) rather than a careful selection of reasonable values and results fall where they may.
So yes, they are “deeper in the delusional system” – in some cases “all the way in”…

Paul Vaughan
September 17, 2009 10:19 am

Stefan (01:06:18) “As for tipping points, how many things do you think could induce a tipping point? Or is it only CO2?”
Good question Stefan.

Paul Vaughan
September 17, 2009 10:27 am

E.M.Smith (09:37:01) “Given this conclusion, what assumptions can I draw?”
Nice.

Paul Vaughan
September 17, 2009 10:40 am

Global averages are not enough. (See R.G. Currie (1996), for example.) It is necessary to investigate the stability of parameter estimates across a range of spatiotemporal scales (Physical Geography 500).
It is also important to consider variables other than just (TMin+TMax)/2. One example:
http://www.sfu.ca/~plv/CCaa1mo&11aT1mo.PNG

E.M.Smith
Editor
September 17, 2009 10:52 am

David in Davis (22:55:22) : They, of course can’t let us go bankrupt until they have sold off most of their U.S. bonds, but after that we have little leverage. More ominously, they are in the process of moving all of their gold, stored mostly in London, to a new storage facility at the Hong Kong airport. It is shaping up to be the Chinese century, and where that leaves us is anybody’s guess.
They don’t have to sell the debt.
China recently announced a deal for several years worth of oil from Brazil. It was “paid for” via the transfer of $200 Billion of US treasuries that now sit on the books in Brazil. Watch for more of this (they were doing similar things on other minerals). China is in the process of locking up all the resources needed to run global manufacturing for decades (so good luck competing if they own the metals, oil, coal, etc.) and is doing it via swaps of treasuries; thus avoiding a collapse of their holdings as they liquidate.
It would not be hard to trade down their exposure via shortening maturities either (and there is some evidence that this may be happening with shorter dated treasuries selling a smidgeon better):
http://chiefio.wordpress.com/2009/03/18/chinese-food-fight/
So take your long maturities, trade them for future delivery of inflating hard assets and buy up / lock up resources. Use your ‘buys’ to buy short maturities. In about 3 to 5 years, you are done. 1 to 2 years if you really try…
Do not under any circumstance believe that China can not walk away from the US debt or that it is in any way bound by that debt to any behaviours we would like to see. It just is not so. They are the bank, we are the overdrawn credit card user. Nothing more.

E.M.Smith
Editor
September 17, 2009 11:18 am

For those who have asserted that there is no Airport Heat Island Effect:
NOAA thinks there is one. From:
http://www.arh.noaa.gov/arhdata/archive/FXUS64KMEG/FXUS64KMEG_04203201519
EXPECT A MOSTLY CLEAR NIGHT. WINDS WILL BECOME LIGHT AND TEMPERATURES DROP INTO THE LOWER 70S…EXCEPT FOR THE MEMPHIS AIRPORT HEAT ISLAND WHERE IT WILL ONLY GET DOWN TO THE MID 70S.
https://kb.osu.edu/dspace/bitstream/1811/23307/1/V089N2_001.pdf
has:
THE HEAT ISLAND OF AKRON-CANTON
9:30 AIRPORT. Nirmala Kochar and Thomas
W. Schmidlin, Department of
Geography, Kent State University, Kent, OH
44242.
Air temperatures measured at airports may not
represent the temperatures of surrounding rural
areas because of extensive paved surfaces,
buildings, lack of tall vegetation and flow of
traffic. These factors may cause the presence
of a heat island which is generally an urban
phenomenon. So, the temperature of the airports
may not represent that of the surrounding rural
land. This was verified by studying the
temperature and wind of the Akron-Canton Airport
and eight nearby rural sites between December
1987 and October 1988. The results showed that
an airport heat island did not exist under
cloudy conditions or when the wind was not calm
over 4 or more rural sites. However, the
airport was a heat island for 75% of the calm
and clear nights. Hence, the airport
temperature is not representative of the
surrounding rural land under clear, calm
conditions and it would be appropriate to
establish instruments at a truly rural site.

I bolded the bit where they say that there is an AHI effect…
So the basic point is that there is an AHI effect and it is most pronounced on days with clear sky and low wind. (So folks in cloudy windy places may not have measured it). In an annual average of everywhere, all those thermometers at airports will, on average, read higher than truly rural places.
And, btw, GIStemp uses airports as ‘rural’ for UHI corrections. You just can’t make this stuff up…
http://chiefio.wordpress.com/2009/08/23/gistemp-fixes-uhi-using-airports-as-rural/
http://chiefio.wordpress.com/2009/09/04/most-used-rural-airport-for-uhi-adj/
http://chiefio.wordpress.com/2009/08/26/agw-gistemp-measure-jet-age-airport-growth/

E.M.Smith
Editor
September 17, 2009 11:19 am

For those who have asserted that there is no Airport Heat Island Effect:
NOAA thinks there is one. From:
http://www.arh.noaa.gov/arhdata/archive/FXUS64KMEG/FXUS64KMEG_04203201519
EXPECT A MOSTLY CLEAR NIGHT. WINDS WILL BECOME LIGHT AND TEMPERATURES DROP INTO THE LOWER 70S…EXCEPT FOR THE MEMPHIS AIRPORT HEAT ISLAND WHERE IT WILL ONLY GET DOWN TO THE MID 70S.
https://kb.osu.edu/dspace/bitstream/1811/23307/1/V089N2_001.pdf
has:
THE HEAT ISLAND OF AKRON-CANTON
9:30 AIRPORT. Nirmala Kochar and Thomas
W. Schmidlin, Department of
Geography, Kent State University, Kent, OH
44242.
Air temperatures measured at airports may not
represent the temperatures of surrounding rural
areas because of extensive paved surfaces,
buildings, lack of tall vegetation and flow of
traffic. These factors may cause the presence
of a heat island which is generally an urban
phenomenon. So, the temperature of the airports
may not represent that of the surrounding rural
land. This was verified by studying the
temperature and wind of the Akron-Canton Airport
and eight nearby rural sites between December
1987 and October 1988. The results showed that
an airport heat island did not exist under
cloudy conditions or when the wind was not calm
over 4 or more rural sites. However, the
airport was a heat island for 75% of the calm
and clear nights. Hence, the airport
temperature is not representative of the
surrounding rural land under clear, calm
conditions and it would be appropriate to
establish instruments at a truly rural site.

I bolded the bit where they say that there is an AHI effect…
So the basic point is that there is an AHI effect and it is most pronounced on days with clear sky and low wind. (So folks in cloudy windy places may not have measured it). In an annual average of everywhere, all those thermometers at airports will, on average, read higher than truly rural places.
And, btw, GIStemp uses airports as ‘rural’ for UHI corrections. You just can’t make this stuff up…
http://chiefio.wordpress.com/2009/08/23/gistemp-fixes-uhi-using-airports-as-rural/
http://chiefio.wordpress.com/2009/09/04/most-used-rural-airport-for-uhi-adj/
http://chiefio.wordpress.com/2009/08/26/agw-gistemp-measure-jet-age-airport-growth/

E.M.Smith
Editor
September 17, 2009 11:46 am

Leif Svalgaard (16:23:30) :
Joel Shore (14:33:07) :
I lost you there, Leif. How would a thick atmosphere matter if it were not IR-active?
PV=RT

Ought not that to be: PV=nRT ? (I always remembered it as PivNert…)

September 17, 2009 12:27 pm

E.M.Smith (11:46:19) :
Ought not that to be: PV=nRT ? (I always remembered it as PivNert…)
Let’s do it per mole …

Paul Vaughan
September 17, 2009 12:31 pm

E.M.Smith (11:19:39) “So the basic point is that there is an AHI effect and it is most pronounced on days with clear sky and low wind.”
Clear windless nights (not daytime) …unless you have other material?
Thanks for the note. With sky condition info it should be possible to filter the bias off TMin. However, I would not trust that the generalization holds for all seasons & locations. (For example, continental vs. coastal sites; sites near valleys that (seasonally & bistably) alternately blast cold air & then warm moist air; etc… but the example you provide gets the ball rolling w.r.t. what types of things to probe re AHI.)

Phlogiston
September 17, 2009 7:22 pm

Joel Shore (18:49:29) :
“…what is known about nonlinear systems is that applying a forcing to them makes it more likely that one will induce such a shift. This is the whole concept of tipping points. Of course, climate skeptics generally don’t believe in tipping points because they don’t like science that would argue for the necessity to constrain our emissions. Better to believe that the only way the climate can flip suddenly is completely spontaneously and so there is nothing we can do about it.”
Joel: How would you react if I were to say the following:
If (hypothetically) it were proved beyond any doubt, to everyone’s satisfaction, that anthropogenic CO2 and other emissions had no effect at all on global climate, then how much should the current global political plans to cut emissions be changed? My answer – hardly at all. (Maybe the extravagent percentage targets should be more realistic, but thats about it.) There are many good reasons to reduce gaseous pollution, such as local air quality and related health issues, resource management, the environment etc.
I see this as a scientific debate, not political. It is deeply wrong that it has become political. As so often there is needless polarisation. Sceptics do not necessarily delight in endless pollution (like Soviet era planners with the slogan “smoke means socialism”). And I daresay warmists are not necessarily driven by a desire to take dictatorial control of countries and economies.
Lets limit pollution. And lets also have unconstrained scientific research and debate into climate change (which is intrinsic and continuous). There is no need for entanglement of the two.
The lynching and marginalizaion of AGW-sceptic scientists and media workers is an utter disgrace and a historic travesty of democracy and civil and liberal society. And the distortion of the scientific process to force it to prove global warming has damaged science itself hugely.
It’s worth noting that countries in which global warming activism is strongest are those with greater levels of economic division and class resentment, such as Britain. Class hatred is the animus which energises much global warming politics, thus the disproportionate focus on targeting air travel seen as linked to wealth. The same is true about activism against nuclear power, animal research and transgenic technology – scientists “talk posh” and are on the wrong side – any opportunity to punish them is eagerly taken. These people are expoliting you and they wont thank you – in their eyes you and I are on the same side of the line.

Paul Vaughan
September 17, 2009 11:37 pm

Re: Phlogiston (19:22:57)
It’s nice to see a sensible perspective.

Stefan
September 18, 2009 2:50 am

Joel Shore (08:55:38) :
The fact is that science is never based on certainty because it is inductive. So, there is always uncertainty. The honest way to deal with this is to try to specify the certainty and uncertainty that one has about various parts of the science, which is what the IPCC does. It is not useful to say that because of uncertainty, we know nothing. (Or ,more to what actually seems to happen, because of uncertainty in regards to climate change, we should just assume its natural and there is no significant effect from greenhouse gases.)

So there are just two options? one where we mix certainty with uncertainty with action, and the other where we notice the uncertainty and decide we know nothing and never act?
I happen to be reading Taleb’s The Black Swan at the moment, where he is discussing this issue. IIRC, he is advocating a practical approach to uncertainty, ie. something we can use. The problem remains, history is full of examples where experts vastly underestimated uncertainty, real world examples of disasters.
Nevertheless, objective real knowledge is possible. But, because you never know what new thing might turn up that is completely outside your vast and expert data gained from careful study and experience, including the vast experience of all your colleagues and the entire institutions themselves, it remains that it is easier to prove something wrong than it is to prove it right. One reason it is so hard to prove something right, isn’t just the threat of unknown unknowns popping up and “surprising us”, it is also that as human beings we appear to be hard wired to invent stories. It is harder to not invent stories than it is to invent them. This also implies that it is harder to be a skeptic than it is to not be a skeptic.
It is harder to withhold judgement on something, and to continue to keep an open mind to alternatives. We are wired to conclude that one lion ate a person and therefore every lion will eat people. But the world today is far more complex, and quick or wide judgments don’t serve us when faced with complex systems which can suddenly change in all sorts of ways we haven’t imagined. And yet, this doesn’t mean that objective correct knowledge is impossible, but it does mean that we have to be skeptical if we are to survive.
It is as if there is a tipping point in our minds, where just a bit of data, tips us into a different state where we believe we have the only true and correct story (or if you couch it in sciency terms, the “most likely”). This confirmation bias is inherent to our makeup. What we really need skepticism to “adjust” for it.
Once we have formed a pattern or story in our mind, it is very easy to look at historical data and “explain” it. We looked at the rise in temperature over the 20th century and explained it. If the idea of greenhouse gasses hadn’t been around, we could have “explained” it in a different way. Like for example, the heating after the 800 year lag is explained as being due to CO2, ie. only in the parts where CO2 is rising. Obvious, innit? If CO2 rises with temperature, that confirms the theory (or in sciency terms, is “consistent”). But it is faulty (as in wrong) logic. Similarly, Taleb explains how the sighting of a red mini confirms that swans are white. Follow it, it makes sense!
But you know, all this talk about confirmation bias is just too damned inconvenient for most people to bother with.
All true experts agree anyway, what more confirmation do you want! Let’s add a few more vocal experts-in-agreement. That’ll add additional “consistency”. Look, Ghandi preaches non-violence; Ghandi confirms global warming!
Skepticism makes everyone’s job harder. It reminds us that the truth is more elusive. It infuriates people. But hey, it should mean there’s a case for more research and more funding, non?

Joel Shore
September 18, 2009 9:46 am

Phlogiston:

If (hypothetically) it were proved beyond any doubt, to everyone’s satisfaction, that anthropogenic CO2 and other emissions had no effect at all on global climate, then how much should the current global political plans to cut emissions be changed? My answer – hardly at all. (Maybe the extravagent percentage targets should be more realistic, but thats about it.) There are many good reasons to reduce gaseous pollution, such as local air quality and related health issues, resource management, the environment etc.

Well, I am happy to hear you say that you think greenhouse gas emissions should be cut regardless, but that certainly would not be a popular view on this site. Most people here seem to think there should be no restrictions on greenhouse gas emissions and are strongly opposed to current legislation or international negotiations to impose such emissions restrictions.
And, to be honest, I don’t think you can directly justify cuts in CO2 in terms of air quality and health issues (at least those unrelated to climate change or ocean acidification). Certainly, using less fossil fuels will result in less other pollutants…But, there are other ways to cut back on these pollutants without reducing our use of fossil fuels. The difference between traditional pollutants and CO2 is that the latter is a product of even ideal, perfectly-clean combustion whereas the former are usual the result of the combustion not being fully efficient (or are a result of other substances found in the fuel) and thus occur in smaller quantities and are easier to reduce either by improving the combustion process or cleaning the pollutants out of the exhaust stream.
With CO2, we are faced with the choice of either reducing our use of fossil fuels or of sequestering (a lot of) CO2.
Stefan: An interesting point-of-view but I don’t think that I agree with you that skepticism is harder than the reverse. Particularly in the public sphere, I think it is much easier to raise or highlight doubt and uncertainty than the reverse, which is part of the reason why I think that evolutionists often do not “win” debates with creationists even though I think most here would agree that the evolutionists have the science on their side.
Part of the reason this is the case is that I think many people have a naive view of science where they think there should be one piece of “smoking gun” evidence and that there should be no empirical evidence in apparent contradiction…or at least a puzzle within the current theory. In reality, science works more by the accumulation of evidence, but with no one piece of evidence being perfectly airtight, and in any active scientific fields, there will be puzzles the scientists are still trying to resolve.
Also, in my personal experience doing computational modeling, I find it quite easy to come up with many reasons why my model may be too simplistic to capture reality and hence I am constantly surprised at how well the models perform. In fact, this has always been a little mysterious to me. (Admittedly, this may be due in part to my own personality, as I think I am a naturally skeptical / pessimistic person, so that combination makes me concerned with all the things that could go wrong with the modeling.)

September 18, 2009 11:45 am

Joel wrote:
Most people here seem to think there should be no restrictions on greenhouse gas emissions and are strongly opposed to current legislation or international negotiations to impose such emissions restrictions.
I don’t think it’s most. I think most here have no problem with cleaner energy production, including reductions in CO2 output. We recognize that energy production has and always will evolve and adopt cleaner technologies. Many of us here even recognize that government regulation is sometimes necessary to to nudge things in that direction. Tightening the smog rules in the 70’s comes to mind. Yes, people kvetched and moaned, but they got used to it. And the Japanese showed that it was not only possible to do so, but could be done in a cost effective manner, and obviously, it was good for business.
What most DO object to, is doing so based on flawed science, in a hap-hazard and economically damaging way, and based on ridiculous fear mongering and scare tactics. We object to the use of naked political pressure to do SOMETHING NOW!, even when that something is not going to accomplish the stated goal of stopping global warming, yet cost us dearly now and for centuries to come, and actually hamper our ability to adjust to the climate change that the actions won’t stop anyway..

September 18, 2009 12:16 pm

Sonic Frog
I agree with you that Joel is making assumptions about everyone on this site, and not making a distinction between ‘deniers’ and sceptics. We are vastly different groups.
The inconvenient truth is that at present there is no practical alternative to burning carbon in its various forms and there is no chance of reducing it by 90% (UK recommendations) without causing our economy a great deal of harm.
The idea that renewables can presently take up the slack is pie in the sky-which doesnt mean we shouldnt try but success is many years in the future. In the meantime the first second and third world all want to maintain or achieve a good standard of living, with its inhabitants enjoying a long and healthy life and carbon is an integral part of that for the next few decades.
On a more practical level I dislike paying extra taxes (green taxes in the UK are around 2000$ a year) having my movements rerstricted (carbon card coming soon according to a Parliamentary comittee ) and generally being told what to do based on an invalid hyopthesis.
Which doesn’t mean I’m a schill of big oil out to destroy the panet.
tonyb

Tim Clark
September 18, 2009 12:55 pm

Joel wrote:
Most people here seem to think there should be no restrictions on greenhouse gas emissions and are strongly opposed to current legislation or international negotiations to impose such emissions restrictions.
Reply:
Sonicfrog (11:45:13) :
I don’t think it’s most. I think most here have no problem with cleaner energy production, including reductions in CO2 output.

I disagree. I think most people here “have no problem with cleaner energy production,” but think that CO2 has the following effect on global temps:
The temperature increase attributable to CO2 is equal to, and no larger than, the proportional effect of [CO2] + 4[H2O] +16[methane] + x[ other greenhouse gases] – (minus) absorbance wavelength saturation, without amplification or positive feedbacks. This miniscule temperature increase does not need regulating, and is beneficial plant growth.

Invariant
September 18, 2009 2:54 pm

I sincerely subscribe to the point of view that cleaner energy production and reduction in CO2 output is a great advantage. In particular I support the viewpoint that saving the rainforest is vital for the human race.
Obviously most scientists that oppose the idea that our climate is heading towards a catastrophe are not politically motivated. They honestly think there is something fishy going on. It is not just that they think there are some minor problems with climate predictions, it is merely that they do not feel comfortable and at home in the reasons and explanations given. The underlying psychological problems may be that the language, arguments and reasoning strongly differ from the sound scientific methods they are used to. For example, the idea of consensus is not well received among the scientists that have been disciplined to think independently and question authority by Richard Feynman – read Cargo Cult Science and you will understand what I mean.
http://www.lhup.edu/~dsimanek/cargocul.htm
Another problem is the oversimplification of rather complicated matters – journalists write comprehensive books about topics brilliant scientists with 30 years experience in the field are struggling to understand.
My own point of view is that we do not know, mainly because I cannot find a good reason to expect that a climate model should be able to predict the future climate. It is important to emphasise that I do not know much about how the climate works. On the other hand, are there any scientists that know all the details? I encourage the scientists that trust the climate models to try to look into the reasoning of some of the great minds that finds the reliability of such models troublesome. You may discover that there are many sober arguments from various disciplines that are not at all politically motivated, but are instead based on fundamental scientific principles like the scale invariance of chaotic phenomena. You see, many so called climate sceptics are actually honestly not convinced, and they will be difficult to convince because nature cannot be fooled.

Paul Vaughan
September 18, 2009 3:45 pm

Joel Shore (09:46:39) “[…] but that certainly would not be a popular view on this site. Most people here […]”
Disagree.
Joel Shore (09:46:39) “[…] sequestering (a lot of) CO2”
A bad idea.

Joel Shore
September 18, 2009 7:21 pm

TonyB:

The inconvenient truth is that at present there is no practical alternative to burning carbon in its various forms and there is no chance of reducing it by 90% (UK recommendations) without causing our economy a great deal of harm.

Yes, but the reason this is true is that market economies are great at solving problems that the markets know exist and horrible at solving problems that the markets don’t know about. As long as fossil fuels are cheap and plentiful and get a free ride in the sense that the costs of their effects are borne by everyone collectively, then the necessary financial incentives do not exist for alternatives to be developed. (And, by alternatives, I mean not only alternative energy sources but also new technologies to increase efficiency and technologies to sequester CO2.)

Phlogiston
September 18, 2009 8:47 pm

One further – perhaps final – thought on nonlinear system dynamics. They exhibit a log-log “power law” behaviour, so if you plot size of changes or events against frequency that they occur, both with log scale, you get a straight line. Small changes often, big changes less often. The thing is that this pattern of changes emerges spontaneously from the system, not necessarily in response to any forcing agent.
So in a non-linear / non-equilibrium system, the system itself is a player and can generate dynamics and changes, not directly linked to any specific external factor.
So will global temperature go up or down? This then -according to the dynamic chaos interpretation, depends on what state your system is in.
Do we have a system of an up? Or system of a down?
By the way a great book on chaos, nonlinearity etc. is “Deep Simplicity” by John Gribbin, Random House New York.

September 19, 2009 12:42 am

Joel Shore
Only an American could say fossil fuels are Cheap and plentiful!
Around 20% of the population of the UK will suffer Fuel poverty this winter many vulnerable people will be unable to heat their homes and some will die.
We sit on a vast reserve of coal which for political reasons James Hansens flies over here (the irony!) and tells us we can’t use. For political reasons our leaders have refused to use Nuclear. Shall we cover our countryside in windmills to get 10% of our energy needs or shall we just jack up the carbon fuel prices and be unable to afford to get to work or heat our homes?
Come on Joel-stop dealing in theories and adrress the world as it is and likely to be for several decades.
tonyb

Stefan
September 19, 2009 3:30 am

Stefan: An interesting point-of-view but I don’t think that I agree with you that skepticism is harder than the reverse. Particularly in the public sphere, I think it is much easier to raise or highlight doubt and uncertainty than the reverse, which is part of the reason why I think that evolutionists often do not “win” debates with creationists even though I think most here would agree that the evolutionists have the science on their side.

You say it is easy for creationists to raise doubt and uncertainty. But I am talking about scepticism as a discipline of mind.
You say evolutionists don’t often “win” debates against creationists. Your story (narrative) here is that, look, even religious people can raise doubt.
But if raising doubt is evidence of real scepticism, your religious group should also be raising doubt about God. Actually they’d never make it to the debating hall to meet the evolutionists, they’d have to send notes “we’ll be there in an hour, we’re still trying to work out the God thing”. Then two hours later, another note, “sorry, still not cracked it yet, be another two hours, tops”. And so on.
Now look at your narrative. In your narrative, these religious types, the creationists, find it easy to be sceptical, and from your narrative you infer that it is easy to be sceptical if even they can do it–look how easy it is to be sceptical!
Why does your story use the least sceptical people as evidence of scepticism? Your narrative isn’t even self-consistent.
If they were sceptical, they’d question God.
Perhaps you’re using the word scepticism in the sense of someone who is not easily convinced (of what, the definition doesn’t say). So sure, creationists are not easily convinced that God might not exist. SUV drivers aren’t easily convinced that their SUV is murdering polar bears. Hitler wasn’t easily convinced that his plans were wrong. And to this we add, AGWs aren’t easily convinced that their models are wrong.
And how do you convince someone to question their belief? You get them to think sceptically. And that is not easy.
Above you equated religion with “easy scepticism”. Think about that.

Stefan
September 19, 2009 3:56 am

Joel Shore (09:46:39) :
Part of the reason this is the case is that I think many people have a naive view of science where they think there should be one piece of “smoking gun” evidence and that there should be no empirical evidence in apparent contradiction…or at least a puzzle within the current theory. In reality, science works more by the accumulation of evidence, but with no one piece of evidence being perfectly airtight, and in any active scientific fields, there will be puzzles the scientists are still trying to resolve.

The naivety is believing that this gradual accumulation of evidence tells you more than it does.
Remember, people like Taleb were quants on Wall Street. Their models performed well. And this led people to believe that they understood more than they did. They based decisions about risk on these models. But then reality blows up in their face. And people threw themselves out of windows.
In my view, my hunch, if you will, is that 95% of everything already known in climate science, all that has been gradually accumulated, over the decades by painstaking research, will continue to be correct. And the real world system will still go and do something completely unexpected.

Philip T. Downman
September 19, 2009 7:43 am

So far no one seems concerned about the fact that even the Copenhagen conference will emit such an amount of nonsense that it probably makes a gross contribution to the Madhouseeffect. (MGG Manmad Global Gargling)

September 19, 2009 7:49 am

Joel My 00 42 41
Sorry, the first sentence sounded much more rude than I intended. What I mean is that American Fuel is very lightly taxed compared to much of Europe and other places. We are already struggling to pay the bills which ALREADY have green taxes on them. We simply can’t afford any more. No offence meant.
tonyb

September 19, 2009 3:32 pm

Joel Shore (18:35:47) :

Smokey… the difference between you “skeptics” and those of us in the mainstream scientific community is that you guys are essentially relying on the right-wing think-tanks and their small coterie of scientists, whereas we are not quoting Greenpeace or Sierra Club but actual prestigious scientific organizations.

How did Joel Shore get to be so insufferable? Lots of practice? Now we’re “skeptics” [with quotation marks yet] relying on “right wing think tanks”, while the Joel Shores of the world are above it all, hobnobbing with their cronies in ‘actual prestigious scientific organizations’.
Aside from that hogwash, it should be kept in mind that planet Earth is falsifying the CO2=AGW conjecture. Joel Shore and his ilk are being proved wrong by the planet. Is there any greater authority on Earth?
Sorry to bust Shore’s bubble, but he had it coming. He’s on the losing side of the debate, so he throws in his backup argument: “actual prestigious scientific organizations.” heh.
And he’s still wrong: click.

Joel Shore
September 19, 2009 3:49 pm

Stefan says:

But if raising doubt is evidence of real scepticism, your religious group should also be raising doubt about God.

Yes, but then I would also say that if “climate skeptics” showed real skepticism, they would be raising doubt about many of the arguments that are put forth here and elsewhere! So, in some sense, I might grant you that true skepticism is not easy. However, pseudo-skepticism where one is claiming to be skeptical but really is just being contrarian against a particular scientific theory I think is quite easy to do in a way that convinces a fair amount of the public (particularly those inclined that way) and even some scientists in other fields who don’t know the particular field well.
And, frankly, if true skepticism ruled here, you wouldn’t find people embracing the work of Beck or of Gerlich & Tscheuschner or the book of Ian Plimer, and you would find people like Smokey who post lots of deceptive graphs having others (besides those of us defending AGW) criticize them. (People have occasionally taken Smokey to task for some of his less charitable comments directed at us, which I do appreciate, but not really on scientific issues.) If true skepticism ruled here, it wouldn’t take a person defending AGW to point out (months later, I think) that a post by Roy Spencer here arguing that CO2 rises might not be due to humans suffered from a simple mathematical problem that rendered his result meaningless. If true skepticism ruled here, you wouldn’t have people continuing to claim that there was a scientific consensus for global cooling in the 70s even against considerable hard evidence to the contrary (or, at the very least, they would be coming back with hard evidence of their own from the scientific literature, rather than [selectively] citing a few articles from the popular press). I could go on and on here, and in fact it is a bit of a raw nerve for me because the more and more time I have spent here, the more and more I have become convinced that the appropriation of the word “skeptic” by the “climate skeptics” is really quite a travesty, at least as applied to many of the more vocal folks on the site.

Joel Shore
September 19, 2009 3:54 pm

TonyB: No offense taken. You Europeans have already done a lot more than we Americans to try to use taxes to incorporate some of the externalized costs of fossil fuels into their price.
I said:

And, frankly, if true skepticism ruled here…you would find people like Smokey who post lots of deceptive graphs having others (besides those of us defending AGW) criticize them.

And, as if on cue, Smokey had done it again! 🙂

September 19, 2009 4:00 pm

I see that Joel Shore has now unilaterally elevated himself to being the arbiter of true skepticism. Maybe we should run everything by Joel first, to make sure it passes his alarmist litmus test.
How’s that article coming, Joel Shore? Or is sniping from the warmista peanut gallery all you can do?

Reply to  dbstealey
September 19, 2009 4:10 pm

Smokey, Joel Shore makes very valid points about the process of skepticism even if I disagree with much of his point of view.
Separating the wheat from the chaff is extremely important in any debate.

September 19, 2009 4:13 pm

Ah, Joel me boy, when you have no facts, bluster. Claim that graphs refuting AGW are “deceptive” [I’ve numbered these so you can show us, by the numbers, the “deception” in each and every one of them] :
click1
click2
click3
click4
click5
Got lots more when you’re done with these.
BTW, you forgot to tell us how that article is coming along. About ready to submit it for WUWT peer review? Don’t chicken out on us!

September 19, 2009 4:28 pm

jeez,
Joel Shore has repeatedly stated the same thing in various ways: “…Smokey who post lots of deceptive graphs… And, as if on cue, Smokey had done it again!”
Just because someone says a graph is “deceptive” doesn’t make it so. It’s a typically pompous AGW attitude. What is “deceptive” about that graph? Is it more deceptive than the bogus y-axis graphs the alarmist crowd uses? : click. If a normal y-axis was used, this is what we would see: click. The first chart is scary, isn’t it? It’s intended to be, and that makes it deceptive. Joel is just projecting “deception” from his side of the aisle.
I didn’t make up those five graphs, various others did. I simply save them to show what’s happening. I take it for granted that the charts, many of which have been posted here in articles, are accurate. If I’m wrong about that, then simply claiming they are “deceptive”, without any other evidence, is insufficient. Don’t you think?

Reply to  dbstealey
September 19, 2009 4:34 pm

Joel was pointing out that those claiming to be skeptics fail to be skeptical of specious arguments on their side of the fence.
I agree that happens around here more than I would like to see.

September 19, 2009 5:33 pm

Joel Scepticism
Most people start off believing the party line-that there is AGW-and only after looking at it properly do a proportion then realise all is not what it seems.
They have looked at the facts and changed their minds. In this respect I think warmists fail to appreciate that there are two main types of ‘disbelievers’.
The first are ’sceptics’ who have thought deeply about it, read the papers and changed their original position based on actual facts and observations. Many (but by no means all) from within this group are often fairly liberal-probably more so in Europe than the US.
The second group are ‘deniers’ (lower case and non perjorative) who hate the govt, hate authority, believe they should be able to do whatever they want. AGW is just one of many things they automatically disbelieve because they think it is a govt attempt to control them. There is a political element here, but equally very many hate govt of any complexion. There are a sprinkling o this site who tend to come and go.
This last group hate AGW because they believe it is being used as a tool of the govt to intrude in to their life.
The latter would go on denying until their last breath- no matter the proof.
The former are perfectly rational people and would look at the evidence presented to them, but based on the past performance of some of those involved in promoting AGW-and the exaggerated claims made-would want to delve behind the headlines before accepting anything as factual.
Your group also has similar schisms. For every thougtful proponent of AGW, such as yourself (and TomP) there are an many ‘green believers’ who have as much made up their mind beforehand as the ‘denier’. There was a prime example of that this morning from the latest climate group interviewed on the BBC who said they ‘just know’ that man is wrecking the planet.
On this blog we get many ‘hit and runs’ from green believers who sanctimoniously post things culled from elsewhere then disappear.
When there are so many question marks about the reliability of data-sea level rise, arctic ice variation through the centuries, global temperatures to 1850, THe MWP, Ocean temperatures, Co2 levels, satellite reliability etc, and so many unknown facets- such as the real effect of the sun, the PDO etc, none of us from either side should believe that ‘the science is settled’ (Al Gore) and then refuse to debate the science-as he does.
By the way were you surprised at the number of sceptics who diagreed with your comment above;
“Most people here seem to think there should be no restrictions on greenhouse gas emissions and are strongly opposed to current legislation or international negotiations to impose such emissions restrictions.”
Perhaps it demonstrates that we are not the homogenous irrational group you (and certainly TomP) may believe we are?
Best regards
tonyb

September 19, 2009 5:37 pm

jeez (16:34:26) : said
“Joel was pointing out that those claiming to be skeptics fail to be skeptical of specious arguments on their side of the fence.
I agree that happens around here more than I would like to see.”
I agree with that comment, we need to hold ‘our’ side as accountable at producing valid science as we do ‘their’ side.
tonyb

Joel Shore
September 19, 2009 6:04 pm

Smokey says:

Ah, Joel me boy, when you have no facts, bluster. Claim that graphs refuting AGW are “deceptive” [I’ve numbered these so you can show us, by the numbers, the “deception” in each and every one of them] :

Click 1, 3, 4: (1) Cherrypicked starting point. (2) Cherrypicked ending point (why is most of the last year missing?). (3) Very short time interval…Like using a plot of a week’s weather in October here in Rochester that shows a positive slope to demonstrate that the seasonal cycle is insignificant!
Click 2: (1) Cherrypicked period. (Why end in June 2008? What would happen if we instead used the latest month’s data and compared August 1999 to August 2009…Oh, it would show a rise of +0.29 C; Good reason not to do that!) (2) Comparing a single month’s readings 10 years apart…Not even bothering to compute a least-squares trend. [Hence, I am NOT claiming that comparing August 1999 and August 2009 is a good idea even though it does give a rise that is almost twice what the IPCC models would predict the decadal trend to be! It is a dumb idea even if it gives a result that supports “my side”.] (3) Using the temperature data set that shows the most negative trend of all the available global surface temperature and lower-troposphere satellite data sets.
Click 5: (1) Cherrypicked ending point (why is more than a year missing?). (2) Still, it does show the general upward trend in temperatures over time

Is it more deceptive than the bogus y-axis graphs the alarmist crowd uses? : click. If a normal y-axis was used, this is what we would see: click.

It is not deceptive to plot data on a graph that is scaled to the range over which the data actually varies. It is in fact common since it allows one to see much more detail in the data than is apparent when one arbitrarily starts the y-axis at 0 ppm. It might be deceptive if the labels on the y-axis were not there but they are clearly there for everyone to see.

I didn’t make up those five graphs, various others did. I simply save them to show what’s happening. I take it for granted that the charts, many of which have been posted here in articles, are accurate.

Yes…Exhibit A on how to be skeptical: Take graphs that haven’t even appeared in a peer-reviewed publication from websites that have a strong point-of-view and assume that they are accurate and and in no way deceptive. Makes perfect sense!

If I’m wrong about that, then simply claiming they are “deceptive”, without any other evidence, is insufficient. Don’t you think?

Since I have explained countless times and you don’t defend them but then just continue to use them, it is sort of a waste of time. Don’t you think?

Jeff Alberts
September 19, 2009 7:05 pm

Joel Shore (15:49:07) :
Yes, but then I would also say that if “climate skeptics” showed real skepticism, they would be raising doubt about many of the arguments that are put forth here and elsewhere!

You’re lumping us all in together, and maybe that’s warranted. But I for one am skeptical and many claims on both sides. I think the Sea Ice threads both here and at CA are much ado about nothing. I think the concept of a “global average (or mean, whichever you want to promote) temperature” is a meaningless concept, yet both sides try to use it to their advantage.

Phlogiston
September 19, 2009 8:59 pm

Joel Shore, Smokey
Its rather rich for Joel to be talking about cherry-picking of graphs, in the context of the blatant massaging of global temperature data – antarctic or otherwise – in support of AGW that is routinely exposed on this web-site.
I guess Joel is cock-a-hoop about the last couple of months up-spike in ocean surface temperatures. Lets put this in a longer time-scale pespective as you yourself would advocate.
The global temperature record (all the main 3 or 4 including NCDC) over the last half century or so show, in the context of overall steady rize in global temperature, a succession of distinct peaks of 1-3 years duration that include El Nino events (the last, 1998 one certainly is). Due to the general up-slope, the maximum of each peak has been significantly higher than the previous one.
However the current ocean temperature spike (2009) only equals the previous one in 1998. And the overall shape of the temperature curve gives the appearence of “going over the hill” during the decade 1999-2009. (As reflected in the polynomial fit of my earlier posting, 13 Sept, 00:41:06).
Before you write this off as just noise, however, it is worth noting the work at Rochester by Douglass and Knox (Ocean heat content and Earth’s radiation imbalance, DH Douglass, RS Knox – Physics Letters A, 2009 in press) which shows new and substantial analysis indicating periodic shifts from plus to minus in the oceans heat flux budget. The shifts they measure (not only from ocean surface but down to 750m) appear to coincide with the PDA timescale, e.g. shift from negative to positive in the 1970’s, shift back from positive to negative 10 years ago. This gives an a priory reason to look for such a downward inflection. An then of course there is always the sun (sunspot and magnetic minimum).
In the coming years if you wish to continue having cherries to pick, be careful for early frosts.

Stefan
September 20, 2009 3:17 am

smokey (15:32:07) :
Joel Shore (18:35:47) :
Smokey… the difference between you “skeptics” and those of us in the mainstream scientific community is that you guys are essentially relying on the right-wing think-tanks and their small coterie of scientists, whereas we are not quoting Greenpeace or Sierra Club but actual prestigious scientific organizations.

How did Joel Shore get to be so insufferable? Lots of practice? Now we’re “skeptics” [with quotation marks yet] relying on “right wing think tanks”, while the Joel Shores of the world are above it all, hobnobbing with their cronies in ‘actual prestigious scientific organizations’.

For AGW’s there is the problem of the “silent evidence”. They have been told to look out for the right wing “nuts” and so that’s what they seem to notice. And the right wing “nuts” can be vocal. They want to be noticed. But is that everyone? Are there other groups who are quieter, unseen, unnoticed by the AGW crowd? That is silent evidence.
Take me for example–I have voted for the Green party, I thought Green architecture and construction was the only school of architecture worth pursuing, I am 40ish and have never owned a car and find some good feeling in that fact, (that I have in some small way reduced my material impact), I see the green side of not having kids–I have none–and I look at technology for what it allows us to not do, the ways it allows us to make life simpler and lighter (although not necessarily slower, but rather, more flexible). And I don’t know of anyone else like me amongst my friends, so I am, perhaps, part of a body of “silent evidence”.
Now someone could say, “but you’re just one guy”. But the problem of silent evidence is that you don’t know how many there are. There is no political party that matches my views now, so who’s going to represent me and people like me? (Remember, its more or less a two party system, where are the alternatives?) But nevertheless, in some narratives I get lumped in with right wing “nuts”. I post here, I pretend to be “sceptical” (pej. quotes) and so I “fit the profile” and that’s all Joel needs to know.
But I am part of that group that TonyB describes, that group that initially believed “the science”, and later as we looked more closely–and notice the word “look”, as in gazing upon, examining, holding in mind, thinking about–once we looked, our natural scepticism “raised the eyebrows”–wait, this thing they say, what is it based on? Is that what it is based on? That’s not enough, there are too many untested assumptions… and so on.
But the problem of “silent evidence” has perhaps led AGW believers to imagine a narrative where all “deniers” are merely under the influence of right wing think tank “nuts”. Meanwhile, for me, whom they have probably never heard from, I am “silent evidence”, for me it was the scientists from the prestigious institutions themselves, and specifically what they said that raised my sceptical curiosity. Really? They claim to know that?
To be sceptical is not easy, it doesn’t come naturally, it is like a muscle that needs building up. So maybe Joel thinks, in his narrative, that I’m under the influence of right wing think tanks, and he thinks that I’m in with the lot who are not sceptical about solar theories and cosmic ray theories—- I am sceptical about ALL of it! *snip* why is that so hard to understand?
And if someone notices anything I say that shows lack of scepticism, would they kindly point it out to me, I am not perfect and I would like to know.

September 20, 2009 5:43 am

jeez: “Joel was pointing out that those claiming to be skeptics fail to be skeptical of specious arguments on their side of the fence. I agree that happens around here more than I would like to see.”
Not a day goes by that I don’t think, “What if they’re right?” [specifically referring to those promoting CO2=AGW].
My skepticism always comes back to the original CO2=AGW claim. The original hypothesis warned us that increasing CO2 will lead to runaway global warming and climate catastrophe. Remember? The alarmist crowd jumped on the Al Gore bandwagon, and now they can’t get off without admitting that higher levels of CO2 may not cause runaway global warming. They are in a very uncomfortable situation, so they constantly try to distract from their original contention by claiming walruses and polar bears are dying because of AGW, etc., etc., etc., etc. But the original claim is CO2=AGW. I am skeptical of that claim.
As we can see every day, the goal posts are constantly being shifted, as it becomes increasingly clear that CO2 is benign as a trace gas. It really is harmless.
But the central hypothesis remains, and I am still skeptical that CO2=AGW. I question my skepticism every day, as I’m sure most skeptics do. But so far I have no reason to think I’m wrong in my skepticism. Yes, CO2 probably has a small effect. But the planet is showing us that any warming due to CO2 is so very small that it can be disregarded. It is inconsequential. And there is certainly no scientific justification for spending enormous sums on a hypothesis that isn’t being confirmed by reality.
Finally, Joel Shore has the same objection to every chart I’ve posted: cherry-picked start/end times. But that objection can apply to every chart ever made by anyone, so it’s a frivolous objection.
I provide the most recent charts I can find. Rather than complain that a chart ends last year instead of this year, Joel could post his own charts. But his M.O. is to snipe from the sidelines. He’s terrified at the invitation to write an article; he would then have to take a stand, and back it up with facts. The true peer review he would encounter here isn’t like what he’s used to: being hand-waved through by the friendly referees that have insinuated themselves into the climate peer review system. I don’t think Joel is capable of taking the alarmist position and backing it up with verifiable facts that would withstand questions by skeptics.

Robert in Calgary
September 20, 2009 7:31 am

Smokey says about Joel…..
“I don’t think Joel is capable of taking the alarmist position and backing it up with verifiable facts that would withstand questions by skeptics.”
Which is why I don’t take Joel seriously. The AGW people tapdance and they nitpick.
If the “science is settled” it should be quite easy to prove here. But of course……

Joel Shore
September 20, 2009 3:25 pm

Stefan, TonyB, jeez, Jeff Alberts and others: I am glad to hear you guys express that you feel it is important to be skeptical on claims from all sides. Maybe my original comments that provoked these responses were overly pessimistic.
Smokey: I am glad to hear even you say “Not a day goes by that I don’t think, ‘What if they’re right?'” although I have to say that the “evidence” that seems to convince you otherwise seems extremely weak to me.
Smokey says:

Finally, Joel Shore has the same objection to every chart I’ve posted: cherry-picked start/end times. But that objection can apply to every chart ever made by anyone, so it’s a frivolous objection.
I provide the most recent charts I can find. Rather than complain that a chart ends last year instead of this year, Joel could post his own charts.

The underlying problem, of course, is the sources of your charts. They are not produced by scientists active in the field but rather by scientists and organizations that have a particular axe to grind. Hence, they tend to choose the start and end times that provide the best evidence for their point-of-view. And, as I have noted, trends over short time periods are simply not resilient…and can thus show a wide variety of different behaviors. This is true of some previous multiyear periods that are embedded in what we now know is a resilient warming trend between the 1970s and 2000. And, it is true even of climate models forced with steadily increasing greenhouse gas levels. And, as I have pointed out countless times, we experience a close analogy every spring and fall when it is not uncommon to have periods of a week or more where the local temperature trend is the opposite of what would be expected based on the seasonal cycle, this being true even in a city like Rochester with a very strong seasonal cycle.
And, by the way, I have referred people to various charts or used the http://www.woodfortrees.org/ make-your-own charts.
Finally, in regards to your own skepticism, I once asked you to tell me some specific aspects of the argument against AGW that you are skeptical about and you never did answer that question even though there are plenty of extremely nutty things out there (not even peer-reviewed in any reputable journal) that I was hoping you would happily disassociate yourself from. In return, I told you of two aspects regarding AGW that I am skeptical about [not meaning I know that they are wrong but meaning that I don’t think there is sufficient evidence that I have seen to back them up at the moment]. One is the connection between AGW and hurricane intensity and the other being Hansen’s recent claim that if we really go to town burning fossil fuels (especially coal) then we would likely trigger a true runaway greenhouse effect, like happened on Venus.

He’s terrified at the invitation to write an article; he would then have to take a stand, and back it up with facts. The true peer review he would encounter here isn’t like what he’s used to: being hand-waved through by the friendly referees that have insinuated themselves into the climate peer review system. I don’t think Joel is capable of taking the alarmist position and backing it up with verifiable facts that would withstand questions by skeptics.

I have taken lots of stands here and have always backed them up with facts. And, I have withstood lots of questions from “skeptics”. In fact, you have occasionally derided how I have kind of taken over the comments section of threads, but that is only because when I post something there are then often tons of comments that I have to respond to.
As for writing an article here, I have given the reasons why I don’t want to do that:
(1) I don’t think I have much original to contribute since most of what I post is based on the research of people actually in the field and is explained in detail in the IPCC reports, original peer-reviewed papers, or other places.
(2) It would be a huge time commitment on my part, particularly responding to all of the comments. As I noted, it already becomes a big time commitment for me when I just post a comment in a thread here because of all the responses it provokes that I then feel compelled to respond to.
Finally, I wouldn’t get so high-and-mighty about what outstanding peer-review is provided here. The fact is that nobody spotted the mathematical errors in the post that Roy Spencer made here on WUWT http://wattsupwiththat.com/2008/01/28/spencer-pt2-more-co2-peculiarities-the-c13c12-isotope-ratio/ (regarding whether the origin of the current CO2 rise is anthropogenic) until Tamino blogged about it almost a year later. And, at least in hindsight, it should have been obvious that if you get the exact linear regression fit to like 5 significant figures for two pieces of data that you think represent independent things, then perhaps you should question whether they are really independent!
Furthermore, I think I have made it clear to you that I am a physicist who has published a fair bit in the peer-reviewed literature in physics (and related fields), but I have not published on climate science and thus would not be used to “being hand-waved through by the friendly referees that have insinuated themselves into the climate peer review system” even if that was an accurate description.
Robert in Calgary says:

The AGW people tapdance and they nitpick.
If the “science is settled” it should be quite easy to prove here. But of course……

Most of what I post are far from nitpicks with other people’s point. They usually go pretty much to the heart of what they are saying. And, I try to state straightforwardly where I believe that they are incorrect.
As for the “science is settled,” I don’t think that is a phrase that you will find that I have used here. There are lots of remaining issues in climate science, not the least of which is better nailing down the climate sensitivity. However, that does not mean that nothing is known with any degree of certainty. There are some things that are known with close to absolute certainty (for example, that the current CO2 rise is due primarily to the burning of fossil fuels and that the levels of CO2 are higher than they have been in at least 750,000 years and likely millions of years) and some things that are still quite uncertain (like what the effect of AGW will be on hurricanes).
And, regarding being able to “prove” AGW, that is an impossible task. Science is inductive, not deductive, and it is impossible to prove anything. It relies on the accumulation of evidence…and it is very difficult to show the strength of a theory without delving into that evidence in detail, which is really a lifelong project. This is why controversial issues like AGW and evolution can remain controversial in the public sphere (and including among a small minority of scientists) for a long time after there is general agreement in the scientific community, at least on certain aspects of the theory.

September 20, 2009 4:39 pm

Joel
I think you are secretly rather fond of us here-in the fashion of a headmaster chastising recalcitrant and backward pupils of course 🙂
Don’t forget I have supported you several times when I knew you were right and criticised ‘my’ side when they were wrong. I also think many of us are much more ‘liberal’ than you believed, and we are certainly not under the ‘influence of ‘right wing think tanks’ frankly I find some of them rather scary.
Perhaps your perceptions that sceptics and deniers are all the same might be changing. I certainly ‘take you seriously’ and enjoy our discussions, but you do seem to believe in true Orwellian Animal Farm fashion;
“‘warmist proxies good
sceptic proxies bad”
as I said to Tom P over in the other thread.
best regards
tonyb

Joel Shore
September 20, 2009 6:16 pm

TonyB:

Don’t forget I have supported you several times when I knew you were right and criticised ‘my’ side when they were wrong.

Yeah…I appreciate that.

but you do seem to believe in true Orwellian Animal Farm fashion;
“‘warmist proxies good
sceptic proxies bad”
as I said to Tom P over in the other thread.

I don’t think I have criticized (or invoked) any particular individual proxies. What I have expressed is the fact that finding individual regions of the world that were likely warmer during the MWP than presently does not in itself show that this was true globally. And, even if several regions had periods that were warmer then than now, when the “then” is described as being sometime in an approximately 500 year period between 800 and 1300, that does not necessarily make any time during that period warmer because the proxies tend to show warmth that is asynchronous (different places experience their warmest temperatures at different times). And, in fact, the lack of synchronicity of the warmth in different regions is, according to Mann et al., a major region why the “bump” that they see during the MWP in their reconstruction is broad and diffuse rather than sharper like the current warming seems to be.

Phlogiston
September 20, 2009 9:48 pm

AGW anthem
Every political movement needs a rousing and aspirational song to keep up morale: so here is one for proponents of AGW: “Aggressive sunbathing”
Link to file:
http://download.yousendit.com/cmcwWGJITWNxRTFjR0E9PQ

Jeff Alberts
September 20, 2009 10:05 pm

And, in fact, the lack of synchronicity of the warmth in different regions is, according to Mann et al., a major region why the “bump” that they see during the MWP in their reconstruction is broad and diffuse rather than sharper like the current warming seems to be.

Actually that’s because they splice the surface stations onto the end, so you suddenly have more “accurate” data as compared to the proxies. Not to mention that MBH98 and subsequent reconstructions rely heavily on a very small number of outdated proxies (Graybill Bristlecones, remove those and they lose their HS). They seem to refuse to want to use the updated proxies, such as the Yamal series and the Ababneh bristlecone, and seem to want to use Tiljander upside down from the original author’s research. They have never answered the legitimate questions as to why they cherry-picked so blatantly. That’s one thing that makes me skeptical of their claims.
I have also not seen anything that conclusively says that tree-ring width is primarily driven by temperature.

September 21, 2009 12:07 am

Joel Shore
I will put two hypothetical scenarios to you;
If you saw a competent study that demomstrated that the MWP was a synchronous event in terms of time and reasonable dispersion worldwide would that be enough to make you seriously reconsider your viewpoint?
If a serious study debunked the concept of ice core co2 measurement and demonstrated it had much greater variability over the last 1000 years than the 280ppm quoted, would that make you reconsider your position?
tonyb

Stefan
September 21, 2009 3:06 am

Joel Shore (15:25:07) :
As for the “science is settled,” I don’t think that is a phrase that you will find that I have used here. There are lots of remaining issues in climate science, not the least of which is better nailing down the climate sensitivity. However, that does not mean that nothing is known with any degree of certainty. There are some things that are known with close to absolute certainty (for example, that the current CO2 rise is due primarily to the burning of fossil fuels and that the levels of CO2 are higher than they have been in at least 750,000 years and likely millions of years) and some things that are still quite uncertain (like what the effect of AGW will be on hurricanes).
And, regarding being able to “prove” AGW, that is an impossible task. Science is inductive, not deductive, and it is impossible to prove anything. It relies on the accumulation of evidence…and it is very difficult to show the strength of a theory without delving into that evidence in detail, which is really a lifelong project. This is why controversial issues like AGW and evolution can remain controversial in the public sphere (and including among a small minority of scientists) for a long time after there is general agreement in the scientific community, at least on certain aspects of the theory.

Joel, you say in one breath that it is impossible to prove anything, and in another breath, that there are things known with “close to absolute certainty”.
The problem isn’t whether real practical knowledge is possible, the problem is, how do you know when you’ve achieved real practical knowledge.
People are notoriously bad at estimating how much they know, and typically, having more information available doesn’t increase people’s knowledge, but merely their confidence in what they had already got stuck on. See Taleb’s The Black Swan.
Maybe this is just something that some people get and some don’t, depending to what extent they have an introspective character, enabling them to be skeptical about their own thoughts. But that’s just a wild speculation on my part.
Now it is not like we’re debating the scientific evidence of the world being round—-how many times have AGW skeptics been likened to “flat Earthers”? Even the Chairman of the IPCC does this! Several times! In public! And on video! As if to say, these people are “skeptical” about science, that’s like being “skeptical about the Earth being round! You, Joel, yourself have fallen for this habit, earlier when you likened “skepticism” to “creationists”.
Bear in mind, we’re debating not only a complex system, but predictions about a complex system. A system that has a multitude of physical and ecological and social components. We’re not debating whether the Earth is round.
And one defense which you employ for this endeavor is that it is impossible to be absolutely certain, but it is possible to be “close to absolute certainty” regarding this complex physical ecological social system and its future behavior.
I think the problem is not science. It is lack of introspection.

Joel Shore
September 21, 2009 12:13 pm

TonyB says:

If you saw a competent study that demomstrated that the MWP was a synchronous event in terms of time and reasonable dispersion worldwide would that be enough to make you seriously reconsider your viewpoint?

I’ve already said, I think, that my view of the MWP is based on what reconstructions are available at the moment…and it is certainly subject to revision in light of new evidence. Of course, if new evidence contradicts lot of previous evidence, it behooves the presenter to explain why they think this difference occurs and why they believe that their new evidence is more reliable. (This is what Mann et al did—i.e., they explained that the previous evidence for strong warmth during the MWP was strongly biased toward proxies from the North Atlantic / Europe region and that to the extent to which warm periods did occur in other regions during the MWP, they tended to be asynchronous.)

If a serious study debunked the concept of ice core co2 measurement and demonstrated it had much greater variability over the last 1000 years than the 280ppm quoted, would that make you reconsider your position?

Well, this I think is very hypothetical because the evidence regarding CO2 is very strong now and so it would take considerable evidence in the other direction to overturn it…and this evidence would have to include plausible explanations for how such variation is consistent with the behavior seen since we have been measuring CO2 at Mauna Lao (and elsewhere) since the late 1950s.
So, in principle, I am always open to new evidence, but in practice you have to realize just how much previous understanding and evidence would have to be overturned (or re-interpretted) in order for the understanding on CO2 levels to change.

Joel Shore
September 21, 2009 12:46 pm

Stefan says:

Bear in mind, we’re debating not only a complex system, but predictions about a complex system. A system that has a multitude of physical and ecological and social components. We’re not debating whether the Earth is round.
And one defense which you employ for this endeavor is that it is impossible to be absolutely certain, but it is possible to be “close to absolute certainty” regarding this complex physical ecological social system and its future behavior.

To be fair, the statements that I said were close to absolute certainty were not predictions. They were statements regarding the cause of the recent CO2 rises and statements regarding the past CO2 levels over the period for which we have ice core data. One could quibble with what “close to absolute certainty” means…and I purposely left it vague. The IPCC tries to define the degree of certainty assigned to various statements, although these numbers are usually themselves statements of judgement rather than rigorous statistical statements and thus subject to their own uncertainty.

The problem isn’t whether real practical knowledge is possible, the problem is, how do you know when you’ve achieved real practical knowledge.

Well, sure. That is a problem…And, yet would you not agree that using science to inform our decisions, even though it will always be in the face of uncertainty (maybe even uncertainty that is difficult to quantify) is better than the alternative?

People are notoriously bad at estimating how much they know, and typically, having more information available doesn’t increase people’s knowledge, but merely their confidence in what they had already got stuck on.

However, the good thing about science as a whole is that it does not really rely on individual scientists being unbiased or not wedded to certain viewpoints. It is a way for systematizing knowledge even in the light of these human frailties.

Phlogiston
September 21, 2009 10:46 pm

Joel Shore (20 Sept 15:25:07)
“And, regarding being able to “prove” AGW, that is an impossible task. Science is inductive, not deductive, and it is impossible to prove anything. It relies on the accumulation of evidence.”
Which “science” is it that you are referring to?
We have an interesting and illuminating impasse about what science is; on one hand I – and this dead guy called Carl Popper – say that science is deductive based on economic interpretation of measured facts, and if it cant be falsified its not science. But Joel says the precise opposite: “no – science is inductive, not deductive, its impossible to prove anything (implying that if it can be falsified then its not science – at least not the sort of science that he is interested in)”.
I looked at some dictionary definitions and other reference sources about these two words, inductive and deductive, since their meanings might be slipping and blurring. There was an interesting visual thesaurus linking words in a map of proximity and connectivity. Inductive was linked to synthetic and synthesis while deductive was linked to analysis and analytic. I like to think of it in terms of the length of the paths that one draws between observation and conclusion. Short and economic (“parsimonious”) = deductive; long and convoluted involving multiple serial assumptions = inductive.
Two teams of scientists, team inductive and team deductive, were given a task: design a speedometer for a car – a device for measuring and displaying the speed that a car is travelling.
So team inductive got to work. This team included a fair number of physicists with computational and modelling skills. It became immediately clear to them that this was a task requiring the procesing of multiple factors all impacting on speed: what was the energy and force driving the car forward, what was the origin of this energy? Chemical and thermodynamic energy from the combustion of fuel needed to be carefully evaluated and modelled. What was the efficiency of this conversion from chemical to kinetic energy – how much was lost in the inefficiency of the motor? Several team members were assigned to modelling these processes. How much energy was lost as friction and heat through the gas exhaust? Simulation of the turbulent fluid flow and associated heat fluxes along the exhaust pipe was clearly called for.
Then of course there were hours of immense fun to be had modelling and evaluating the fluid friction of the air passing over the car. This of course was modified by the dynamics of the air itself – what was the prevailing wind direction? Access to local climate models was thus clearly an indespensible component of correct quantification of the air friction component. The advantage of this aspect of the overall solution was that the climate model input was a variable that could be usefully adjusted to prevent the speedometer system from outputting unacceptable or out-of-limits results.
It was agreed by all team members at an early stage that in order to promote road safety and limit excessive use of road travel, road travel itself being found to be politically undesirable, that the output of the planned speedometer should always show continuously increasing speed regardless of the (questionably relevant) spatial relationship between the car and the ground (depending on whether one took a merely Cartesian or a Euclidian or relativistic or any other geometric frame of reference, or whether even this question was really anything other than a distraction deceitfully inserted into the argument by speed deniers).
Then of course there was the friction between the tyre and the road. An important input here was the curvature of path of the travelling car and associated sideways force and geometric distortion of the tyre, adding heat to the tyre affecting its friction, and whether or not this induced tyre to road shear and slippage, each in turn calling for further modelling inputs. Of course tyre dynamics were temperature-related so local climate was again a critical factor and another useful variable.
So it became clear to team inductive that to have any hope whatsoever of measuring speed in a credible way, to give an output that would be accepted by internationally recogonised car speed scientists associated with the high profile journals and societies, that a large number of data inputs were needed: chemical measurement probes in the fuel tank to asses the fuel chemical potential energy; probes within the ignition chamber to assess on a millisecond basis pressures and temperatures to illucidate combustion energy. Then multiple sensors were required in the exhaust pipe to provide input for fluid flow modelling of the exhaust gasses. Sensors were also required at many locations on the car’s surface to assess airflow and boundary layer turbulence, as the exact location of the laminar-turbulent transition was a key factor in getting the drag models to work reliably. Sensors were needed within the tyres also. Other factors and associated sensor inputs were also identified and subject to in-depth research and computer simulation.
Thus at the end of the day it was deemed impossible to prove that the “speed” of the car that one measured was correct or not, or that the car was in fact moving at all, or whether it was even in contact with the road, and indeed what it was exactly that one meant by the concept of a “road”. The best one could hope for was an accumulation of evidence on the subject (naturally accumulated with the supervision and filtration of appropriate people).
Then team deductive got to work. They measured the circumferance of the wheels. And set up a sensor to measure the rate of rotation of the wheels. From this they got a speedometer.
Of course, the question of which side had the best approach, is deep and complex. Strengths and weaknesses can no doubt be found with both. Scientists reading this will naturally take sides with either team inductive or team deductive, and this decision will likely be correlated with whether they are supporters of opponents of the AGW hypothesis.
It is the “science” of the impossible-to-prove that always attracts political activism. The approach taken by team inductive illustrates the method that has been developed in the last half century for supporting political campaigns with what is dressed up to be scienific evidence and research. This method and process can be termed “political pseudo-science”. In fact it is not real science, since according to the original classical language root meaning of the word, science is about trying to better understand something with the final aim of knowing the truth about it. Political pseudo-science is, by contrast, about promoting a superficially scientific-sounding hypothesis which supports a certain political activist movement, and then raising a smoke-screen of information, data and argument linked by convoluted and flexible paths in such a way that the same politically mandated conclusions always pop out unchanged unaffected by any of the actual data: “its worse than we thought”. This combined with wearing down the opponents – labelled as sociopathic “deniers” and enemies of the people – with marginalisation, intimidation, real violence and sheer volume of unrelenting verbiage.
Some scientific questions are clearly and unambiguously falsifiable – thus actually scientific in the Popperian sense. For instance, is there oil in these rocks? Will this medicine cure this disease? When will this comet pass the earth? Then there are questions beyond the scientific method – for example anything happening outside out cosmological light-cone, or observation of events in other universes.
But there is a miasmic grey region in between, of marginally provable with difficulty merging into outright unprovable. It is this region of the marginally provable – nonprovable that without fail attracts political activism supported by political pseudo-science. Or perhaps attract is the wrong way to describe it, rather, political pseudo-science drives the subject matter deliberately into this grey region at the margins or badlands of science.
AGW is far from the only example of this. Anti-nuclear activism draws heavily on political pseudo-science that exaggerates the biomedical dangers and health effects of radiation and radioactivity, painting a picture of hideous and unlimited harm and danger from the tiniest exposure to ionising radiation. In the same way that AGW proponents obstruct direct conclusions from global climatic observations, radiation scare-mongers energetically obstruct direct discusion and conclusions from simple linkages between exposure to radiation of animals and people and resultant health impacts – or lack of them. They ridicule this as naive, and instead they construct elaborate inductive narratives starting with molecular and genetic level events, linked to cell biology and with an added mixture of epidemiology, hey presto – the politically mandated result of deadly danger from tiny radiation exposure is reliably and repeatebly produced. Any real data linking organism exposures and health results is dismissed by a barrage of argument that such links are impossible to prove. The fact of daily exposure to levels of natural radiation far higher than levels they insist are deadly – is forcefully suppressed. In so doing, the western world (with the laudable exception of France) has destroyed its nuclear industry at a time when it might be needing it most.
Then take genetic modification of agricultural crops. The same left wing – anarchic anti capitalistic mob of thugs have created the political momentum to roll forward another political pseudo-scientific campaign. Here the tactics of shifting in and out of the sphere of the provable are ludicrously evident. Does experience show that 10 years of such and such a GM crop is without health or environmental harm? Then it means that the harmful effects only appear after 20 years. What about if there have been 20 years with no significant ill-effects? Then a new model is produced showing that the effects will spring up in 40 years! Possibly even after hiding for a generation.
So at a time when GM technology might prove to be more necessary than ever expected, our political culture is doing its best to destroy this technology and science base as well.
For a scientist, arguing against political pseudo-science is a form of asymmetric warfare. The political pseudo-scientists employ guerrilla tactics of brief and daring raids into the terrifying territory of the falsifiable and scientific, followed by retreat into the safety of the impossible-to-prove.
And – guess what: its worse than I thought!
Political pseudo science is deeply corroding our scientific capability and the edifice of science itself. It is pervading more and more scientific disciplines, with the inductive philosophy of grossly inflated pride in technological leaps through hoops shackling us to a disfunctional epistemology of convoluted linear inductive logic and forcing us away from real answers rather than drawing us toward them.
If this process runs its course and the capability of western culture and society to carry out the scientific method is finally destroyed, perhaps only Islamic or Chinese or other Asian nations or cultures will carry it forward to future generations. Our proximity and cosiness with such cultures might in the not too distant future be significantly increased, as we all find ourselves huddled together around the equator.

September 22, 2009 12:41 am

Phlogiston
Very nice post. Thanks.
tonyb

September 22, 2009 12:45 am

Joel
I gues you will read and respond to the post by Phlogiston. Whilst you are still around please confirm the TOTAL amount of co2 in the carbon cycle (oceans atmosphere plants etc) and mans TOTAL contribution to that amount.
I want to put things into a proper context as to our actual cupability and impact . Please leave aside the ‘well even a little bit of cyanide can harm us argument.’
thanks
tonyb

Stephen Wilde
September 22, 2009 10:23 am

Phlogiston:
Brilliant and true.
Especially this:
“Then team deductive got to work. They measured the circumferance of the wheels. And set up a sensor to measure the rate of rotation of the wheels. From this they got a speedometer.”
Applying that to climate in light of my comments just do the following:
1) Ascertain the position of the ITCZ when global air temperatures are stable.
2) Measure the distance it moves during negative and positive oceanic phases.
3) Ascertain the distance it moves as a result of the estimated temperature forcing from say 100 ppm of CO2.
4) Bear in mind that the purpose of the movement is to neutralise temperature forcing from whatever cause so that the temperature equilibrium set by the solar/ocean interaction remains undisturbed.

Joel Shore
September 22, 2009 12:39 pm

Phlogiston: I don’t know what to say about your diatribe except to note that your example of “inductive” and “deductive” logic with the speedometer has nothing that I can see in common with the actual correct usage of those terms.
And, your whole thing about “political pseudoscience” just seems to be an excuse for people with your political point-of-view to ignore and belittle science that they don’t like the policy implications of. I.e., it is just politicizing science in the name of preventing it from politicization. (Of course, it amuses me to no end that the politicizers of science are deemed to be organizations such as the National Academy of Sciences, AAAS, the various scientific professional societies and so forth whereas those fighting the politicization seem to be organizations like the Heartland Institute, the George C. Marshall Institute, and so forth.)
Unlike you, I see politicizing of /attacks on science by both the Right and the Left, although the Left’s (e.g., postmodernism) seems to have been less effective and more marginalize than the Right’s.
TonyB says:

Whilst you are still around please confirm the TOTAL amount of co2 in the carbon cycle (oceans atmosphere plants etc) and mans TOTAL contribution to that amount.
I want to put things into a proper context as to our actual cupability and impact .

Well, you can always engineer to get the answer that you want to hear by asking the wrong question. The question is not our total contribution to the total carbon cycle, which is indeed rather small (see here: http://www.globe.gov/fsl/eventsimages/CCdiagramWEB.jpg ) but rather our contribution to the level of CO2 in the ATMOSPHERE specifically (and, as far as ocean acidification goes, in a certain chemical form in the oceans). The problem is that the rate of our introduction of CO2 into the atmosphere is very fast compared to the geologic timescales over which some aspects of the carbon cycle that will eventually restore the balance operate. And hence, our perturbation to the atmospheric concentrations will persist for thousands of years.

Stefan
September 22, 2009 1:50 pm

Joel Shore (12:46:45) :
Stefan says:
Bear in mind, we’re debating not only a complex system, but predictions about a complex system. A system that has a multitude of physical and ecological and social components. We’re not debating whether the Earth is round.
And one defense which you employ for this endeavor is that it is impossible to be absolutely certain, but it is possible to be “close to absolute certainty” regarding this complex physical ecological social system and its future behavior.

To be fair, the statements that I said were close to absolute certainty were not predictions. They were statements regarding the cause of the recent CO2 rises and statements regarding the past CO2 levels over the period for which we have ice core data. One could quibble with what “close to absolute certainty” means…and I purposely left it vague. The IPCC tries to define the degree of certainty assigned to various statements, although these numbers are usually themselves statements of judgement rather than rigorous statistical statements and thus subject to their own uncertainty.

I’ll put things back into the context of this thread. Earlier, E.M Smith said, “the MODELS are bunk since they cannot predict (or project) a cooling trend.”
Your reply was, “What the models predict is that on average there will be warming. However, each individual model run shows the sort of noise that is inherent in the real climate system and thus it is not uncommon to have approximately decade-long periods with little trend or even a negative trend.”
OK, so various model runs can do that. Ten or twenty years is just noise. Now if noise could only persist for one year, then we’d have some empirical evidence by now of the models’ skill; we’d be out of the noise periods and the long term trend would be clear. But ten years can be noise. So we are still in the noise period where it is too early to tell. In what context then, in which particular findings, or speciality, is it appropriate to be discussing whether we’re “close to absolute certainty” ? In what particular context is it appropriate for the IPCC to be talking about findings as “very likely” ? What does it mean when the IPCC summary for policymakers states that it is “very unlikely” (defined as less than 10%) that climate sensitivity is less than 1.5C ? Joel, what was your vague definition for “close to … certain” ? Would it be 99%? Would it be 95% ?
We are still in the noise period. There is no empirical evidence as yet that model projections are correct–all we are doing so far is comparing modelled noise with climate noise. So what are they based on, these IPCC projections which are using the term “very unlikely”? They are apparently based on nothing but faith in a set of hypothesis whose real world implications are yet to be tested—-remember, the IPCC is reviewing the broad science and offering one single summary to policymakers for the future of the planet. It is the sum total, the whole picture presented, and its degree of certainty, that counts, not whether some particular individual bit of research managed to match a high standard of empirical testing and verification, of which there are no doubt many examples. You simply can’t jump from “I fixed a car engine and it works” to “I will design the next Boeing Mach-10 super jetliner”. Recall, you have made much about the gradual accumulation of knowledge. Sometimes the whole is indeed greater than the parts. But sometimes you only have a heap of parts that don’t add up to anything. How do you know the difference? If it is science then you know by testing. By empirical testing.


The problem isn’t whether real practical knowledge is possible, the problem is, how do you know when you’ve achieved real practical knowledge.

Well, sure. That is a problem…And, yet would you not agree that using science to inform our decisions, even though it will always be in the face of uncertainty (maybe even uncertainty that is difficult to quantify) is better than the alternative?

Yes science can inform our decisions. For example, empirical research shows that most predictions by experts turn out wrong. So we can use that. We can take into consideration these things that studies of human behaviour show about our ability to be biased. So we are informed by that. Or course, this doesn’t come from physics, it is not a “hard” science, but then what is so firm and nailed-down about the projections of future climate, ecology, and social systems? Do you see the dilemma? If you want to work it into a softer science, open the field of climate up to issues that are greater uncertainties, then you open yourself up to the counter-indications from other soft sciences.
This is how you, a physicist, ends up having a conversation with a non-scientist like me. You’ve left the fortress of rigour and highly specialised skill, years of technical discipline, and entered a quagmire of philosophical discussions, judgements, social dynamics, and issues about “wisdom”.

However, the good thing about science as a whole is that it does not really rely on individual scientists being unbiased or not wedded to certain viewpoints. It is a way for systematizing knowledge even in the light of these human frailties.

Science as a whole, I believe and as is generally accepted, is self-correcting, simply because everything tends to progress, as far as we can see. The big issue, however, is that any required self-correction takes time. Peer review can also be peer pressure. I don’t know if you have ever lived in a culture where 99% of people are wrong but as far as they are concerned, everything is in the natural order of things? (I’m referring to living in South Africa when Apartheid was still in force). Eventually the people (who were the majority) corrected the system, which had been imposed by the authoritarian minority. And yet, it took many decades. There are examples in science where discoveries took a long time to be accepted. I recently heard an experienced medical professor state that, “when scientists see something they don’t like, they ignore it”. The scientists he was referring to, were actually a very prestigious medical institution that advises the government on health policy.
Recall where we came from in this thread. You claim that the climate models (and what the IPCC bases its projections on) are not even out of the noise period where they are indistinguishable from nonsense (ten years without warming is just noise, right?). We know that human psychology can hold onto bias, even when faced with strong empirical counter-evidence, and we know that experts overestimate their confidence in their predictions–a fact often observed, and hard to ignore when scientists start bandying about terms like “virtual certainty” and “10% (very unlikely)”–so we know it happens and can happen.
Quite simply, policy must consider all these items of information.

September 22, 2009 2:00 pm

God, I can’t believe this thread is still alive!
Joel asked of Smokey:
Finally, in regards to your own skepticism, I once asked you to tell me some specific aspects of the argument against AGW that you are skeptical about and you never did answer that question even though there are plenty of extremely nutty things out there (not even peer-reviewed in any reputable journal) that I was hoping you would happily disassociate yourself from.
I know this was directed at Smokey, but I’ll contribute. I constantly hear or see this being presented as evidence against global warming:
Jupiter, Mars and Neptune are all warming, so the recent warming trend of the Earth can’t be our fault.
Never mind that each could be warming for different ecological reasons based on the atmospheric or geologic dynamisms of each planet, so the fact that all three are warming does not disprove AGW in our case. Now, if there are no explanations as to why each would be warming, then it would give more credence to the solar-centric side to explain our warming. Only problem is, I have never been able to confirm that those planets are warming at all. Looked everywhere for confirmation. Even asked some here to provide the evidence of the other planets warming. I can’t find it, and no one has shone me the link to such information, other than a link to a Hannity or Rush quote. Until I see the confirmation, this is not a valid point that weakens the AGW argument.

September 22, 2009 3:07 pm

Phlogiston (22:46:17),
I agree, that was a really great post. I recognized Joel Shore in it throughout. No wonder he called it a “diatribe.”
One thing I was taught by one of my physics profs was a simple definition of inductive vs deductive reasoning: deductive reasoning is from the general to the particular; inductive reasoning is from the particular to the general.
Alarmists live and breathe inductive reasoning: a polar bear drowns… global warming! A hurricane hits… global warming! Dead walruses are found on a beach… global warming! And so on. They constantly argue inductively, taking a particular occurrence and extrapolating it to the entire climate.
This is, of course, faulty logic. To show the value of deductive reasoning: they cannot take the general climate, and deduce that global warming causes polar bears to drown, because some polar bears always drown. But human evolution has made a survival trait out of inductive reasoning. You can’t assume a bear is not hungry; you run away from all bears. So the general public laps up scary stories and using their hard-wired inductive reasoning, they extrapolate one scary story to apply to everything. Deductive reasoning is hard. It takes will power and discipline.
Alarmists must show that the climate is outside the bounds of natural variability, which is the basic question. The theory of natural climate variability has never been falsified; the climate has had repeated extremes, both up and down, before humans had any possible effect.
We are in the middle of a benign climate; CO2 has been many thousands of ppmv in the past — when the climate was plunged into an Ice Age. And CO2 has remained at very high levels for hundreds of millions of years at a time, a time when life flourished. Yet looking at a very short time span, alarmists use inductive logic for CO2 just like they use it for polar bears: “Look! CO2 is rising, therefore it causes global warming!”
Using deductive logic, CO2 need not even be mentioned, unless the climate can be shown to be abnormal. GCMs should be programmed to completely omit CO2 because, as Occams Razor demands, they should never increase beyond what is necessary the number of entities required to explain anything. Throwing CO2 into the mix serves an agenda, but it is not necessary to explain the climate [and GCMs have a really abysmal ability to predict the climate. Unlike the theory of natural variability, which predicts multi-decadal length warming and cooling periods, riding on the gradually rising trend line going back to the LIA and before that, to the last great Ice Age].
Inductive logic has its uses, as when a cop arrests a suspect for a crime based on a few clues, instead of arresting everyone who could possibly have been connected in any way. But then, deduction takes over.
[Many other excellent posts here, too. 500+ posts is a pretty satisfying thread, and I’ve learned a lot. But I haven’t learned why Joel spends so very much time on this site, still trying to convert his first skeptic.]
Sonicfrog (14:00:36),
I’ve had this link for a while, hope it helps. It’s got its own citations on the first page: warming on other planets.

Mike Bryant
September 22, 2009 4:20 pm

I think the crux of the whole matter is this:
It doesn’t matter whether the IPCC has it right or wrong… Just the fact that CO2=AGW is a “scientific”consensus is enough for the scaremongers. Because there is a “scientific” consensus everyone else, meteorologist, climatologist, geologist, scientist, statitistician, engineer or anyone who is not part of the consensus, must be quiet and let the United States of America become a part of a worldwide socialistic government.
So everybody just be quiet and accept that if they can’t clean us out and humble us with the health care debacle, they can use cap and trade, and of course we must spend additional trillions to install the high speed rail systems across the USA.
Or we can tell all the clowns the scientists and the politicians on both sides of the aisle, that the party is over and we’re gonna build the fence around Washington DC…. nothing in or out…. It’s past time for a holiday from big government.
Mike Bryant

Joel Shore
September 22, 2009 5:28 pm

Mike Bryant:

Because there is a “scientific” consensus everyone else, meteorologist, climatologist, geologist, scientist, statitistician, engineer or anyone who is not part of the consensus, must be quiet and let the United States of America become a part of a worldwide socialistic government.

Well, they don’t have to keep quiet but they might try coming up with actual scientific arguments rather than just repeating the same old tired scientifically-untenable talking points!
And, I think you last part about “worldwide socialistic government” really just re-enforces my point that most “skeptics” doubt global warming because they don’t like the policy implications (although I am sure that they believe that they doubt it for legitimate scientific reasons, just as the doubters of evolution do).
Smokey says:

But I haven’t learned why Joel spends so very much time on this site, still trying to convert his first skeptic.

On that point, we may agree. By failing to distinguish real science from junk science, you guys are making yourselves completely irrelevant to both the scientific and policy discussion about climate change…so maybe I should just leave you be!

September 22, 2009 5:36 pm

Joel, please don’t leave us!
You provide lots ‘n’ lots of hits, keeping the traffic so far ahead of the alarmist blogs that they’ll never catch up; you convince no one here because the planet is laughing at your global warming hubris, and it’s so much fun thinking about all the time you’re cheating your boss out of.
So stick around. Write an article, even.

philincalifornia
September 22, 2009 6:14 pm

Joel Shore (12:39:23) :
Phlogiston: I don’t know what to say about your diatribe
Joel Shore (17:28:00) :
…so maybe I should just leave you be!
——————————-
I know what to say.
Joel, he just handed you your ass, so leaving him/us be would be an appropriate response.
Having said that, however, many readers are waiting for you to give us a de novo article (not a collection of links) explaining carbon dioxide-induced global warming, that is based on empirical evidence. In other words, the article should not include the words “model” or “models”.
….. and then when you’re done with that, can you also give us a molecular mechanism for how that portion of carbon dioxide that is anthropogenic can also cause climate change ??
Pretty, pretty please

September 22, 2009 6:19 pm

Smokey, that link was not a very good resource. Here’s why:
Pluto – it’s moving to its outside orbit. If the sun was producing the warming observed during this period, it would have to be pretty intense to affect a planet that far out. We’re much closer. We’d be dead.
Jupiter – the article says that heat is being transferred from one part of the planet to another. There is no mention of overall heat increase of the planet itself
Mars – link no longer works, and I believe that has been explained without dramatic increase in the sun’s output.
Storm On Saturn – Again, link doesn’t work.
Titan – See Pluto.
Only the last two articles, the ones about the sun’s output, can be valid. But the warming planets… not very useful to the debate..

September 22, 2009 6:58 pm

Sonicfrog,
I was just trying to help, so I gave you the one link I had. You said “I have never been able to confirm that those planets are warming at all. Looked everywhere for confirmation. Even asked some here to provide the evidence of the other planets warming.”
At least that link provides evidence of some of the planets [and the moon Titan] warming.
You’re right, it could be just a coincidence. But I notice they didn’t show the planets cooling.
Also that link was from three years ago, when the Sun was still active. Look at what’s happened since: click. The Sun is very quiet now.
Try doing a search in the WUWT search box for “sun”. Go back a few pages, and you’ll start to see the pattern. The Sun has a huge influence over the Solar System. And something switched off in the Sun a few years ago. Outer planets may no longer be warming. But several years ago the Sun was much hotter.

Joel Shore
September 22, 2009 7:03 pm

Sonicfrog: Glad to see you are skeptical about the other planets argument.
And, of course, the problem with claiming that other planets are warming for the same reason as the Earth is that the solar output is quite well-measured recently. That is why people who want to hold the sun responsible for terrestrial climate change have had to appeal to exotic mechanisms like the sun’s modulation of intergalactic cosmic rays on the nucleation of clouds. And, such mechanisms are unlikely to play the same role on planets (or moons) with very different atmospheres than Earth.
philincalifornia says:

….. and then when you’re done with that, can you also give us a molecular mechanism for how that portion of carbon dioxide that is anthropogenic can also cause climate change ??

What…Do you think that the molecules of carbon dioxide that are anthropogenic in origin somehow behave different than the others? The understanding of how CO2 absorbs infrared radiation dates back a long ways…and the basic radiative effect for the atmosphere has been understood for decades. (See http://www.aip.org/history/climate/co2.htm for a historical introduction.) The only part really remaining to be fully understood is the effect of feedbacks in the climate system.

Joel Shore
September 22, 2009 7:09 pm

Smokey says:

he Sun has a huge influence over the Solar System. And something switched off in the Sun a few years ago. Outer planets may no longer be warming. But several years ago the Sun was much hotter.

Interesting that you think it was MUCH hotter. Here is a plot of the variations in solar irradiance due to the solar cycle: http://upload.wikimedia.org/wikipedia/commons/0/0d/Solar-cycle-data.png Since you seem to feel that plots of rising CO2 levels are deceiving if you don’t start the y-axis at 0ppm, you presumably would feel similar about this and might try replotting this with the y-axis going down to 0. I can guarantee you that, if you do that, you may not think the sun was MUCH hotter several years ago. The irradiance was less than 0.1% higher.

Mike Bryant
September 22, 2009 7:28 pm

Joel,
Tornadoes increasing?…. Nahhhh
Hurricanes?……. Nahhhh
Global sea ice disappearing?…….. Nahhhhhh
The Himalayan glaciers shrinking?…… Nahhhhhh
Earth warming?………….. Nahhhhhhhhhhhhhhh
We’re not children… Run along and peddle your doomsday scenarios elsewhere…
Mike

Michael D Smith
September 22, 2009 7:52 pm

Joel Shore:
And hence, our perturbation to the atmospheric concentrations will persist for thousands of years
That is clearly not correct. The rate of increase of CO2 is currently around 2PPM/yr, yet the slope of greatest monthly increase or decrease is on the order of 10x that fast. So the fast components of the carbon cycle have the ability to completely overwhelm the slower reacting components. Any perturbation we may cause will be balanced by the faster reacting components extremely quickly. The lifetime of CO2 in the atmosphere is around 9 years, though you can pick any study you like, there are 20 or 30 showing 9±4 years. The notion of a thousand year effect is technically correct I suppose, but the effect will be something on the order of e^(-1000/9), or about 6E-49.
That would be something like the mass of 60 hydrogen atoms compared to the mass of the earth, just so you know. Some perturbation that’s going to cause, (it’s worse than I thought). Here’s an interesting graphic depicting a (laughable) 100 year residence time compared to peer reviewed studies:
http://c3headlines.typepad.com/.a/6a010536b58035970c0120a5e507c9970c-pi

philincalifornia
September 22, 2009 8:56 pm

Joel Shore (19:03:46) :
philincalifornia says:
….. and then when you’re done with that, can you also give us a molecular mechanism for how that portion of carbon dioxide that is anthropogenic can also cause climate change ??
What…Do you think that the molecules of carbon dioxide that are anthropogenic in origin somehow behave different than the others?
——————————-
Joel, just so you know, I’ve been a professional scientist for 32 years, and people like you don’t fool people like me.
So no, unlike the idiots who do think there’s a difference, and published that the half-life of anthropogenic carbon dioxide in the atmosphere is over 1000 years, I do not think that there is any difference (possibly because I got a Ph.D. in Organic Chemistry – and that would relate to carbon, at age 23).
So do you think you could stop evading the question ….. ??
To help you, let me phrase it in more simplistic terms:
YOU tell us what the carbon dioxide levels would be on September 22nd, 2009 without any anthropogenic carbon dioxide (a), then tell us what it is with the anthropogenic component (b). Then subtract (a) from (b) and tell us how that difference causes “anthropogenic climate change” …
… at the molecular level please.
Please, pretty please.
Get your numbers right, because if you don’t, there will be more than just me lining up to rip your head off (metaphorically speaking, of course).

pochas
September 22, 2009 9:46 pm

Joel,
You may be interested in this map that shows mid-tropospheric concentrations of carbon dioxide worldwide. It shows that excess concentrations of carbon dioxide are localized to the area where they are produced. Almost all of the anthropogenic CO2 is gone after its first pass over an ocean. Note that the CO2 produced in California is used up by plants before it reaches the Ohio valley. This shows that anthropogenic CO2 production is minor compared to natural sources and sinks and that residence times in the atmosphere are short.
http://www.nasa.gov/multimedia/imagegallery/image_feature_833.html

September 22, 2009 9:59 pm

Smokey, I’m very much in tune with the latest research suggesting the sun has a bigger role than models suggest. I’m not arguing that variation in solar output couldn’t contribute, but not in a way that could warm the outer planets. As I said, if solar radiation were responsible for the warming on Pluto, or even Jupiter, we would fry. Joel may dismiss the more complex theories of solar forcing in climate, but there is an awful lot of new research that indicates more solar forcing than there is on the models.
That said, it makes no sense to cling to easily disproved meme’s such as the warming planets thing.

Phlogiston
September 22, 2009 11:22 pm

Joel Shore
OK my last post was a bit too long, I got carried away.
But I dont “belittle the science because I dont like the policy implications”. I already said earlier I am in favour of reducing atmospheric and other pollution, effectively (but sensibly). Many others here agree. We’re criticising science where we dont like the science.
I take the meaning of “inductive” and “deductive” as Karl Popper used them. If the words have drifted in meaning since then I dont recognise a drifted meaning of these words, at least concerning epistemology. (Smokey also takes something very close to the original Popperian meaning of these words.)
Let the old man speak for himself:
“I am of a different opinion. I hold with Hume that there simply is no such logical entity as an inductive inference; or, that all so-called inductive inferences are logically invalid – and even inductively invalid, to put it more sharply. We have many examples of deductively valid inferences, and even some partial criteria of deductive validity; but no example of an inductively valid inference exists.
…The belief that we use induction is simply a mistake. It is a kind of optical illusion. What we do use is a method of trial and the examination of error; however misleadingly this method may look like induction, its logical structure, if we examine it closely, totally differs from that of induction. Moreover, it is a method which does not give rise to any of the difficulties connected with the problem of induction.
…Let me point this out first for the best kind of human knowledge we have; that is, for scientific knowledge. I assert that scientific knowledge is essentially conjectural or hypothetical.
Take as an example classical Newtonian mechanics. There never was a more successful theory. If repeated observational success could establish a theory, it would have established Newton’s theory. Yet Newton’s theory was superseded in the field of astronomy by Einstein’s theory, and in the atomic field by quantum theory. And almost all physicists think now that Newtonian classical mechanics is no more than a marvellous conjecture, a strangely successful hypothesis, and a staggeringly good approximation to the truth.
I can now formulate my central thesis, which is this. Once we fully realize the implications of the conjectural character of human knowledge, then the problem of induction changes its character completely. …We can explain all our achievements in terms of the method of trial and the elimination of error. To put it in a nutshell, our conjectures are our trial balloons, and we test them by criticizing them and by trying to replace them – by trying to show that there can be better or worse conjectures, and that they can be improved upon. The place of the problem of induction is usurped by the problem of the comparative goodness or badness of the rival conjectures or theories that have been proposed.”

Gerry
September 23, 2009 12:09 am

Leif Svalgaard (16:33:25) :
Gerry (14:48:35) :
The first paper of Session 4 in the upcoming SOHO23 conference (http://www.soho23.org/) looks especially relevant to Dr. Svensmark’s findings
I don’t think so, as the cosmic ray intensity is not markedly different this minimum from all previous minima where we have data [back to 1952]. When comparing cosmic ray stations, remember that different stations show slightly different variations and one must look at many to see the correct pattern. It is like measuring temperature, you cannot just look at one place and say that is representative of the whole globe.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Edward Smith of JPL wrote
“Compared to the previous four minima that took place since continuous measurements by spacecraft began, the heliospheric magnetic field (HMF) strength and solar wind pressure have decreased to new lows. The field is about 20 % weaker than in the previous minimum and the solar wind pressure is correspondingly low principally as a result of a decrease in density.”
Granted, the cosmic ray data is quite variable from station to station. Are you saying, Leif, that the low HMF strength and low solar wind pressure are not, either theoretically or actually, causing any discernible increase in cosmic ray intensity compared with other minima? Or is it that the cosmic ray measurements have so much scatter and variation from station to station that any increase is masked by the data noise?

September 23, 2009 12:13 am

Joel
I’m not convinced that other planets are warming-the data for this planet is scarce enough, let alone for ones millions of miles away.
you said;
“I think you last part about “worldwide socialistic government” really just re-enforces my point that most “skeptics” doubt global warming because they don’t like the policy implications (although I am sure that they believe that they doubt it for legitimate scientific reasons, just as the doubters of evolution do).”
Earlier in this thread we had quite a discussion about ‘motives’ and each one of us contributing disagreed and cited the reasons. I think you are revisiting your old stereotype (despite my unpaid tutelage) and am still not making a distinction between a ‘sceptic’ and a ‘denier.’
You also said;
“And hence, our perturbation to the atmospheric concentrations will persist for thousands of years.”
I had not expected you to say that without a heavy qualfication, in as much only a tiny fraction of the co2 contribution will remain for thousands of years.
We have been having a long dscussion with Ferdinand on this (on another ‘dead’ thread!) -search this site for “NSIDC still pushing..”
Perhaps you might like to confirm where Ferdinand has gone so wrong-the number of studies that support your contention is tiny.
Needless to say Joel, I certainly would not want you to leave the site. We all enjoy our discussions with you even though some are more forthright of their opinion of your information than others.
tonyb

Stefan
September 23, 2009 6:46 am

Phlogiston, I can suggest that designers, on the whole, use trial and error. They have an inspiration, a wild conjecture, that the building could be L-shaped, or the kettle could be powered wirelessly, or the garment could be made of fluff collected from washing machines, and then they spend the week trying to figure out the details. After a week they discover 50 reasons why it won’t work, and so they dream up a new idea, a new conjecture, using what they already learnt in the previous week about the problems. The good designers are the ones who will throw out ideas that other designers would have been satisfied with. The mediocre products, the ones that don’t quite work or feel right, are the products approved by lesser designers who didn’t notice the faults, or ran out of time.
It is a highly uncertain process, but it really helps to have an eye for what should be thrown out.
The mediocre and bad designers are the ones who can’t see the faults, or just stand there defending their work by dismissing criticisms as “nitpicking”.
Anyway, that’s one example of trial and error. Perhaps that’s why I find the narrative of “a gradual accumulation of evidence by experts in the field” such a strange idealized notion. I mean, it sounds more like a gradual accumulation of credentials for gradual career advancement… same sort of story. But invention? Discovery? Those are innovations. They can’t be predicted.

Joel Shore
September 23, 2009 8:11 am

Michael D Smith says (and TonyB and philincalifornia make similar points):

The lifetime of CO2 in the atmosphere is around 9 years, though you can pick any study you like, there are 20 or 30 showing 9±4 years. The notion of a thousand year effect is technically correct I suppose, but the effect will be something on the order of e^(-1000/9), or about 6E-49.

This is not correct. The fate of a slug of CO2 released into the atmosphere is much more complicated than can be accounted for by a single lifetime because of the buffering chemistry in the ocean. As a result, the process of the decay of the CO2 concentration back to its original value after the release of a slug of CO2 is highly non-exponential. The book to read about this is David Archer’s “The Long Thaw”.
Basically, it works like this: Some of the CO2 released invades the oceans but eventually, the ocean waters become more acidic to the point where they no longer absorb the CO2 (in net). At this point, 20-40% of the initial release of CO2 remains in the atmosphere. Then, one has to wait around on the order of 2000-10000 years, the timescales associated with dissolving enough CaCO_3 out of rocks in order to neutralize the oceans and allow further absorption of CO2. Even that does not get rid of all of the CO2 perturbation (somewhere on the order of 10-15% remains), with the rest having to wait for reaction with igneous rocks, which has a timescale on the order of hundreds of thousands of years.
philincalifornia says:

YOU tell us what the carbon dioxide levels would be on September 22nd, 2009 without any anthropogenic carbon dioxide (a), then tell us what it is with the anthropogenic component (b). Then subtract (a) from (b) and tell us how that difference causes “anthropogenic climate change” …

The current level of CO2 is approaching 390ppm, which is 110ppm above the pre-industrial baseline. So, the anthropogenic component is 110ppm (and would be higher if the oceans and biosphere hadn’t absorbed about half of our emissions). This difference causes anthropogenic climate change because the radiative forcing due to CO2 is approximately logarithmic in atmospheric concentration with a value of ~4 W/m^2 for each doubling of CO2 levels.

Joel Shore
September 23, 2009 8:22 am

By the way, if you don’t want to find Archer’s book, a brief summary of how the CO2 decays is given here http://www.realclimate.org/index.php/archives/2005/03/how-long-will-global-warming-last/ with plenty of references into the scientific literature.

September 23, 2009 8:35 am

Joel Shore,
Please don’t link to that pathetic no-account, George Soros-funded science fiction site. If you think you’re credible, write your own article.
To bring you up to speed on CO2, this will assist you: click.

Joel Shore
September 23, 2009 9:06 am

Smokey,
Whatever. You are welcome to just ignore the accepted science in the field if it doesn’t strike your fancy. Just don’t expect anyone in the field or any policymakers who want to know what the science says to take you seriously.
By the way, how is that plot of the irradiance over a solar cycle coming (you know, the one with the irradiance starting at zero so it is not deceptive as you seem to believe all plots that don’t start at zero are)? Does it show that “several years ago the Sun was much hotter” as you claimed?

Stephen Wilde
September 23, 2009 10:31 am

“Joel Shore:
This difference causes anthropogenic climate change because the radiative forcing due to CO2 is approximately logarithmic in atmospheric concentration with a value of ~4 W/m^2 for each doubling of CO2 levels.”
Reply:
I’ve not come across that one before !!!
The effect of more CO2 DECLINES logarithmically and it is suggested by some that we are already at the limit of the warming that CO2 can achieve.
No, the AGW theory relies on amplification of the CO2 effect from more water vapour in the air.
However the oceans fail to change the Earth’s temperature when they try to change the amount of water vapour in the air on a hugely greater scale so why would CO2 in tiny amounts be more successful ?
In fact the variable speed of the hydrological cycle keeps global humidity in a narrow band and so prevents the consequences that have been proposed.
The oceans rule in tandem with the sun. The air is just along for the ride but in the process of riding the oceanic roller coaster it can rapidly slough off the variations in energy flow emanating from the oceans by changing the rate of energy transfer from surface to space.

September 23, 2009 12:27 pm

Joel Shore
The IPCC models use the Bern and ISAM models (but other models are in use too), see for the Bern model: http://www.climate.unibe.ch/~joos/model_description/model_description.html
This from Ferdinand Engelbeen;
“The Bern model uses a mix of half life times, depending of the type of sink and as the longest gives a remainder of thousands of years for the last 10% of excess CO2 in the atmosphere, that gives extremely long average half life times. Even if that is so, what the IPCC does forget to tell you is that the extreme long life times are only for the last 10% and that 80% of the excess CO2 is already gone in less than 150 years
http://wattsupwiththat.com/2009/09/17/nsidc-still-pushing-ice-free-arctic-summers/#more-10921
You provided a link to Real Climate and I have read all the papers (that were still live)
Much of it seems to revolve round highly theoretical studies by David Archer in which he does a Mann and quotes his own previous articles as references.
The RC article evoked comments;
“A quick read of your paper (reference 7) brought up some questions.
The statement is made that “Atmospheric pCO2 approaches equilibrium on a time scale of ~300yr”. In none of your model scenarios involving realistic near-term Carbon releases (1000 gigatonnes or less, based on the consideration that the 1990-1999 release is estimated in IPCC TAR to be 6.3 gigatonnes per year) does more than 20% of the injected CO2 remain in the atmosphere for 1000 years. It is based on these considerations that reasonable people consider the bulk of the CO2 to have a century scale life cycle in the atmosphere.
Your model seems not to take into account the terrestrial sinks for CO2. When your model neglects the Calcium Carbonate processes and silicate weathering, it predicts that there will be *NO* change in atmospheric CO2 after the ~300y ocean uptake is complete. Is this a reasonable assumption?
While it is a very important point for the lay person to know that the acidification of the ocean by CO2 (it combines with water to produce dilute Carbonic Acid) can reduce the effectiveness of the Calcium Carbonate processes at sequestering Carbon (and can even reverse it, by dissolving Calcium Carbonate), your model chemistry seems quite simplistic. No mention is made of the myriad of other processes (some of which operate on short time scales) whereby the acidity of the ocean is neutralized without involving CaCO3. How robust is your ocean chemistry model?”
And
“Your finding of a “long tail” to the remaining 7 to 20% of the CO2 seems to hinge entirely on the ocean-acidity/CaCO3 argument and a neglect of other chemical and terrestrial sequestration processes which operate on short time scales”.
David Archer then spends much time defending his findings, including against Ferdinand and Hans Erren who said;
“I don’t think it is justified, given the noisy data to assume a mechanism other than a first order Fick’s diffusion.
Using a simple first order Fick’s law diffusion fit on the emissions and concentrations
1958-2002 yieds – with an equilibrium value of 280 ppm – a diffusion constant of 0.98135.
The 2002 level is 373 ppm (excess of 93 ppm above 280 ppm)
1) Stopping emissions completely in 2002 gives values of 320 ppm in 2050 and 297 in 2100, which is a decimation of already 82% in 98 years.
2) reducing emissions with 2% per annum gives a peak of 391 ppm in 2028 and a reduction to 348 ppm in 2100
3) holding emissions at 2002 level gives a growth to 428 ppm in 2050 and 453 in 2100
4) increasing emissions annually with 1% gives 463 ppm in 2050 and 596 ppm in 2100
The emission trend of the last 55 years shows an unintentional decreasing emission growth. No SRES scenario assumes a continuation of the current decreasing trend.”
see:
http://hanserren.cwhoutwijk.nl/co2/co2fick.xls
In short, David Archer was given a hard time defending his speculative theory which you have cited as fact. Why not follow the WUWT link given above and make a contribution, as the Real climate link you posted is not as definitive as you believe.
best regards
Tonyb

September 23, 2009 12:32 pm

Joel
With respect, having read a lot more of his work, I think you have taken too much notice of David Archers theory which Real Climate has enthusiastically latched onto . I really think you are wrong on this one.
tonyb

Joel Shore
September 23, 2009 12:50 pm

Stephen Wilde:

Reply:
I’ve not come across that one before !!!

Really? Even Roy Spencer and Richard Lindzen accept that a doubling of CO2 produces ~4 W/m^2 forcing.

The effect of more CO2 DECLINES logarithmically and it is suggested by some that we are already at the limit of the warming that CO2 can achieve.

Your last statement makes no sense at all. There is no limit to a logarithmic function. The function y = A log(x) + B has the property that each time you double x, you change y by the same amount. That is why scientists talk about the forcing or temperature change due to doubling CO2 rather than, say, due to increasing CO2 by a given additive amount (like 100ppm). A fractional change (of which a doubling is one particular example) is the natural thing to talk about when you have a logarithmic dependence.

No, the AGW theory relies on amplification of the CO2 effect from more water vapour in the air.

In fact the variable speed of the hydrological cycle keeps global humidity in a narrow band and so prevents the consequences that have been proposed.

What stays approximately constant is relative humidity, not the absolute humidity. So, as warming occurs due to the CO2, it causes the evaporation of more water vapor which then causes further warming. This is what climate models predict and this is what the empirical data in fact show to be happening. (See, e.g., http://www.sciencemag.org/cgi/content/summary/sci;323/5917/1020 and http://www.sciencemag.org/cgi/content/abstract/sci;310/5749/841 )

Joel Shore
September 23, 2009 2:20 pm

TonyB: I don’t see where anything in what Ferdinand Engelbeen says in that WUWT thread contradicts what I have said. In fact, the main point that he makes is that Smokey’s 5.3 year residence time is an entirely incorrect number to use to estimate how long the perturbation will remain in the atmosphere.
This is the statement that I made (based on David Archer’s book):

Basically, it works like this: Some of the CO2 released invades the oceans but eventually, the ocean waters become more acidic to the point where they no longer absorb the CO2 (in net). At this point, 20-40% of the initial release of CO2 remains in the atmosphere. Then, one has to wait around on the order of 2000-10000 years, the timescales associated with dissolving enough CaCO_3 out of rocks in order to neutralize the oceans and allow further absorption of CO2. Even that does not get rid of all of the CO2 perturbation (somewhere on the order of 10-15% remains), with the rest having to wait for reaction with igneous rocks, which has a timescale on the order of hundreds of thousands of years.

and this is what Ferdinand says:

The Bern model uses a mix of half life times, depending of the type of sink and as the longest gives a remainder of thousands of years for the last 10% of excess CO2 in the atmosphere, that gives extremely long average half life times. Even if that is so, what the IPCC does forget to tell you is that the extreme long life times are only for the last 10% and that 80% of the excess CO2 is already gone in less than 150 years (except with extreme large amounts of emissions).

I don’t see any contradictions. Ferdinand seems to have taken the lower estimate of ~20% rather than my number of 20-40% that survives after the ocean invasion. And, he talks about the last 10% whereas I put it at 10-15%. But, otherwise, we basically agree and we both disagree strongly with the claim that Smokey made there and here and Michael D Smith made here that the relevant decay time is only 5-10 years.

Stephen Wilde
September 23, 2009 3:05 pm

Joel Shore (12:50:37)
A first doubling may theoretically produce more warming but that assumes no negative climate response to offset it.
A second doubling produces a reduced response and further doublings quickly produce a response that is so small as to be insignificant.
Some do say we are already at that point but I make no judgement on that.
Whether we talk about absolute humidity or relative humidity the fact is that the surface air temperature always moves towards sea surface temperature so that changes in humidity are always neutralised by a change in the speed of the hydrological cycle.
The only way that changes in GHGs can warm the Earth is by somehow warming the ocean and I contend that they cannot. Instead the speed of ejection of energy from surface to space changes so as to ensure temperature equilibrium at the sea surface/surface air interface.

September 23, 2009 3:38 pm

Hi Joel
Ferdiinand links to this good explanatory paper.
http://www.john-daly.com/carbon.htm
The last 10% has a long life, the preceding amount a much shorter one mentioned in dozens or low hundreds of years and the temperature sensitivity is also very low. It is similar to that estimated by misclowski and not far off that estimated by Arrhenius -once he got his act together with his second paper (which strangely never seems to get mentioned.
I can not see how the Archer paper says either of those things nor you either-however if you agree with the above that is fine.
There simply is not enough carbon in the world to reach many of the scenarios postulated by the IPCC.
best regards
tonyb

Joel Shore
September 23, 2009 5:18 pm

Stephen Wilde: Well, you are entitled to believe whatever you want but we are entitled to take your beliefs and compare them to the actual work of scientists and find them to be wanting. First of all, what you describe in terms of the response to a doubling is not how a logarithmic function behaves…So, you seem to be proposing, with no evidence whatsoever to back it up, that the logarithmic dependence on concentration is not correct.
As to your hypotheses that GHGs cannot warm the earth, that runs counter to the actual fact that they are already keeping the earth much warmer than would be the case if the atmosphere was not IR-absorbing.

Mike Ewing
September 23, 2009 5:44 pm

Joel Shore (14:20:18) :
Basically, it works like this: Some of the CO2 released invades the oceans but eventually, the ocean waters become more acidic to the point where they no longer absorb the CO2 (in net). At this point, 20-40% of the initial release of CO2 remains in the atmosphere. Then, one has to wait around on the order of 2000-10000 years, the timescales associated with dissolving enough CaCO_3 out of rocks in order to neutralize the oceans and allow further absorption of CO2. Even that does not get rid of all of the CO2 perturbation (somewhere on the order of 10-15% remains), with the rest having to wait for reaction with igneous rocks, which has a timescale on the order of hundreds of thousands of years.
What about biological absorption? There are huge formations of shell rock around the globe. I know from working on an abalone farm, that supersaturated water(not too the point that they all get the benz and go belly up o course) will lead to increased shell growth… has there been any studies along these lines? And considering the decidedly alkaline nature o sea water its a bit misleading to say acidic isnt it… slightly less basic may be more accurate discription.(we have shell fossils from periods with vastly greater co2 levels, which fly in the face of acidic oceans)

Stephen Wilde
September 23, 2009 11:38 pm

Joel, try this:
http://motls.blogspot.com/2008/01/why-is-greenhouse-effect-logarithmic.html
You say:
“As to your hypotheses that GHGs cannot warm the earth, that runs counter to the actual fact that they are already keeping the earth much warmer than would be the case if the atmosphere was not IR-absorbing.”
I say,
It is not the GHGs that keep the Earth warm. It is primarily the rate of energy release from the oceans with the contribution from the air an infinitesimal component.
The water in the oceans performs exactly the same function as GHGs in the air but on a hugely greater scale.
That is consistent with both physics and observations. It beats me why no ‘scientist’ has countered that point even though I’ve been saying it for over 18 months now.

Stefan
September 24, 2009 4:54 am

Joel, you seem to have basic faith and respect for the established scientists in the field.
When people criticise the field’s “knowledge”, you can always refer back to what these “actual scientists” say and use that to claim the criticism are wrong.
I for example, criticise that they cannot predict the future in any useful way. You can always refer back to the actual scientists who say they are making useful and important projections. The difference is I don’t have any particular faith in their abilities, any more than I have faith that the doctor will cure me. Maybe he will and maybe he won’t. But I don’t take it on faith that he will, nor that he is the most likely to offer a cure. I could change my diet, for example, and something in my diet may accidentally cure me.
Please consider this basic question of faith.

Joel Shore
September 24, 2009 8:05 am

Mike Ewing

And considering the decidedly alkaline nature o sea water its a bit misleading to say acidic isnt it… slightly less basic may be more accurate discription.(we have shell fossils from periods with vastly greater co2 levels, which fly in the face of acidic oceans)

Yes…Sea water tends to be slightly alkaline and we are making it less alkaline.
As for the vastly greater CO2 levels in the past, it is not the levels that matter but rather the rate of increase of CO2. The point is that the current rate of increase is overwhelming the rate at which CaCO_3 can be dissolved from rocks in order to keep the pH balanced.
Stephen Wilde says:

I say,
It is not the GHGs that keep the Earth warm. It is primarily the rate of energy release from the oceans with the contribution from the air an infinitesimal component.
The water in the oceans performs exactly the same function as GHGs in the air but on a hugely greater scale.
That is consistent with both physics and observations. It beats me why no ’scientist’ has countered that point even though I’ve been saying it for over 18 months now.

No it is not consistent with basic physics. Basic physics says that the surface temperature could not possibly be as high as it is if the atmosphere were not IR-absorbing. See here for further discussion: http://arxiv.org/abs/0802.4324

Joel Shore
September 24, 2009 8:09 am

Stefan,
Well, yes, I do have a certain amount of faith in science and the scientific process. I think this faith…if you want to call it that…is well-placed as science has served us well. (And, by the way, while there may be certain issues where I take the scientific conclusions on a certain degree of faith, there are other ones where I have delved more into the details.)
Many people here, on the other hand, seem instead to have a lot of faith in their own ability to know much better than the scientists in the field (as an example, Stephen Wilde in the current discussion). Frankly, I think this sort of faith is very naive and misplaced.

September 24, 2009 8:44 am

Joel Shore wrote

As for the vastly greater CO2 levels in the past, it is not the levels that matter but rather the rate of increase of CO2. The point is that the current rate of increase is overwhelming the rate at which CaCO_3 can be dissolved from rocks in order to keep the pH balanced.

I have to disagree on this particular point.
It was expected that the ocean acidification will prevent coccolithophores growth, making them unable to build their carbonate armor. (Coccolithphores are the most efficient “carbon traps” that Nature ever invented).
Recent observations have proved just the contrary: oceans acidification seems to cause the Coccolithophores to form bigger coccoliths, trapping more carbon dioxide from the atmosphere.
That fact alone could mean that current projections about climate change are over pessimistic. But the complete mechanism of global climate regulation is far too complex to allow quick conclusions.
Ref: http://bit.ly/4onH90

Stephen Wilde
September 24, 2009 11:51 am

Joel Shore:
“Basic physics says that the surface temperature could not possibly be as high as it is if the atmosphere were not IR-absorbing. See here for further discussion: http://arxiv.org/abs/0802.4324
Please explain why the effect of the energy flow from the oceans appears to have been left out in terms of it’s proportionate contribution to the higher temperature.
Even if the air were not IR absorbing at all the energy flow from the oceans would still maintain a certain surface air temperature over the oceans. The surface temperature over land would be a different matter admittedly but the Earth is 71% ocean surface and the air moves about a lot. The presence of the IR absorbing characteristics of the air just helps to spread the energy flow from the oceans more evenly over the globe including it’s land.
Anyway the air IS IR absorbent mainly due to the water vapour content so the air is merely a continuation of the oceans but in vapour form. Both water in the oceans and water vapour in the air are involved in slowing down the energy flow through the system and of the two the oceans have a far greater effect than the air in maintaining that apparent 33C ‘excess’ temperature.
If you can demonstrate my assertions to be wrong then that would be as helpful to me as being right because I can just amend my climate description to take account of any such correction. But can you demonstrate that I am wrong ?

anna v
September 24, 2009 12:26 pm

Let us not lose sight of the fact that the main Green House Gas is H20, more than ten times the CO2 contribution in volume, and in spectral width. The Anthropogenic part of CO2 is a few percent of the total atmospheric CO2, a trace addition to a trace gas.
Let us control H2O then, to be effective. Ooooooooom.

Stefan
September 24, 2009 1:54 pm

Joel,
I agree science has served us well. I trust my life to the aircraft, the genetically engineered food, the medical procedure. But the trust doesn’t come from an implicit assumption that these things are “scientific”, it comes from seeing them work repeatedly every day. I trust the road bridge I am about to cross because I can see thousands of cars cross it every day. Notice I don’t have to understand how it was built, to the point of being able to design one myself. I don’t need to be an aeronautical engineer to trust the aircraft. The results are plain to see. They have been tested.
And this is where climate models come into question. Again, I don’t need to understand how they are made to decide whether to trust them. I merely need to see evidence of their repeated success. We don’t have this evidence, and what evidence there is, is only discernible to those qualified in statistical evaluations. Experts claimed the Titanic unsinkable. Well that was put to the test for everyone to see.
I don’t claim to know more about climatology than climatologists. But I do claim to be able to call them on their predictions. I call out and ask, “where’s the clear obvious results that show you are right?” If those results are not discernible without advanced statistical techniques, ie. I can’t just watch thousands of planes fly successfully every day, or watch thousands of people receive a vaccine and be cured–if the results are not obvious in that way, then no, I have no business trusting them. They may turn out to be right, but I am simply choosing to believe something without evidence if I do.
See it is a question of responsibility. If I go to the doctor, and take his advice, and submit to his procedures, and I become seriously injured as a result, it is my fault, it is my responsibility, because I am the one who chose to believe him. Maybe he was a quack, maybe he was doing his best, maybe it was just bad luck, maybe the treatment worked for everyone else except me. I was the one who chose to believe, even if I was not able to discern whether his advice was correct. So the onus is on me to be very careful about who and what I believe in.
I go to three doctors and they each prescribe something different for the same condition. What am I to make of that? First, it hints there is a difference of opinion. There are obviously complex issues about, say, the use of antibiotics, whether they are topical or oral, and how often to take them. One doctor says, “I don’t know why you were prescribed that stuff.” Then the third doctor says something about the second prescription, “you don’t want to be popping pills”. Well OK, health is complex, the treatments are part trial and error drawing from a range of broad statistical observational studies across a wide spectrum of the population, and the broad advice has to be adapted to the individual patient. Plus there are obviously differing levels of experience, and maybe one day one doc is just a bit tired, and on another day a different doc spots something that the other two missed. Which one do I trust? There is no question of trust. The question is, which treatment worked, which one worked in a way that it is obvious to me that it worked.
The fact that they are experts, helps, it is preferable, it is necessary, but it is not sufficient. I may not be able to understand what they say, but I need some evidence in a form that I can understand, and if that means “thousands of planes fly every day” then that’s the level of obviousness that it needs to be, for me to accept it.
Now the experts say, we have detected this phenomenon, it is too subtle for you to notice for the next 20 years, but eventually it will broadly impact our future generations, and you need to trust us, oh and by the way, whatever you do, be sure you don’t trust those other people over there, according to us they don’t know what they are talking about, but we do, and we’re the ones with the most impressive credentials.
To me, that is all irrelevant. There is simply no place for blind trust. The fact that they claim to be experts and that they claim to be certain or virtually certain is no reason to trust them. Experts can and are wrong on any number of things, especially predictions about the future. We know from broad obvious experience that planes with engines that fall off, crash into the ground. We also know from broad obvious experience that experts’ predictions about the future planet, like overpopulation for example, very easily turn out wrong, and that nonetheless the same experts continue to claim that they are still right!
How can this be? Well there is science and there is science. Some science is hard–repeatable, testable, rigorous, and so on. Some of it is soft, which doesn’t mean worthless, just that it is more about interpretation, about patterns, intuition, broad generalisations. Both kinds can serve us. Neither is implicitly more correct than the other. If a psychologist recommends I so certain things to improve my relationship, and I do those things, and my relationship gets worse, then their advice was wrong. Needless to say, it is rare to find good advice about psychology. See I’m not asking for absolute certainty. I’m asking for testability.
Hard science has been a great success with simple material stuff that can be tested in a lab. Once you enter the world of ecology and planetary systems and biological systems, it starts getting very hard to be successful. Drugs are considered successful because they worked a bit better than a placebo. Not 100% Not 50% Maybe only 20% better than a placebo.
The global climate, of which we have a small amount of patchy data from various sources, is projected on computers (which are not powerful enough), and relying on specific assumptions–because without those assumptions we’d just have to all go home–like the assumption that climate is the long term statistical averages of weather, and so on. Medicine requires control groups. With the Earth that isn’t possible. Please, just call it an intuition and be done with it. There is no need to try to put numbers and a veneer of numerical rigour on this thing when all the models can do is say something like, between 2C and 4C, maybe.
You don’t have to be a pilot to know that flying a plane is hard and that pilots make mistakes. Understanding the planetary system is hard–we haven’t cured many cancers, remember, biology, ecosystems, social systems, these are all very difficult problems. It would be very surprising if any experts managed to nail these problems anytime soon.
In the meantime, by all means, let them be funded and have careers and let them continue to gradually accumulate knowledge. But if you claim to have cured cancer, show us the cured patients.

Phlogiston
September 24, 2009 3:35 pm

Stephan, Smokey, philincalifornia, Stephen Wilde
Thanks for the positive feedback!

philincalifornia
September 24, 2009 5:07 pm

Phlogiston (15:35:59) :
Stephan, Smokey, philincalifornia, Stephen Wilde
Thanks for the positive feedback!
——————————
No pun intended, eh ??? I’ll come back to that.
Thank you Phlogiston for reminding me where this thread was. WUWT is so fast moving that it’s sometimes hard to keep track of which thread is where. Many have addressed the points Joel addressed to me, but I will add the following point, and a question:
First, although he will not admit to it, Joel with his 1,000 year half-life discussion (which I tend to believe is just parroting) made a glorious confirmation of the principles of “team inductive”, and thereby proved your point exactly. It looked even stranger when this incredibly complex dynamic of how CO2 gets out of the atmosphere was juxtaposed next to the infantile, simplistic view of how CO2 gets into the atmosphere (to paraphrase “there’s more, so it must all be anthropogenic”). The paper was published to get press releases Joel. It has no bearing on the real half-life of carbon dioxide that relates to what is important to the debate in general. As I posted when this dumbsnip paper came out, why didn’t “team inductive” postulate that every carbon atom on the planet has been in the atmosphere at some point and, therefore, the half-life could be measured in billions of years ??
Also Joel, I was most definitely hoping for something more than (again to paraphrase) “a doubling in CO2 gives an increase of 4 Watts per square meter and that causes anthropogenic climate change”. In asking the question re. climate change versus global warming, I was kinda hoping to hear something about the steps in-between, particularly how a rising radiative forcing would lead to the down bits of climate change.
It did, however, make me think of a concept that I’m sure has been thought of before and I just haven’t read it up to now. In trying to imagine myself in a CO2-only world like Joel’s, when they (and I’m not sure on the history of who they are – politicians, scientists and pseudoscientists) foisted the term “climate change” upon us as they retreated from “global warming”, did they not put the scientists in a Catch 22 box ?? If rising radiative forcing can give downturns in temperature (remember I’m in silly CO2 land for now), then the ONLY explanation one can come up with is that there has to be negative feedback, and the positive feedback theory goes belly-up. Is there another explanation where one could retain scientific credibility ??
In other words “climate change” theory equates to dead positive feedback theory. This is no different than the paper on negative feedback by Lindzen that was posted here a few months back. It’s just a different way of looking at it.
For example, if Hansen the CO2 purist were to say “climate change” and “positive feedback” in the same sentence, wouldn’t he lose all scientific credibility ??
Oh, hold on a second ….
Go on Joel, post us up some links on what team inductive says about this.

Joel Shore
September 24, 2009 6:53 pm

Stephen Wilde says:

If you can demonstrate my assertions to be wrong then that would be as helpful to me as being right because I can just amend my climate description to take account of any such correction. But can you demonstrate that I am wrong ?

You are confusing two different things. Yes, the oceans have a lot of thermal inertia (i.e., they can store a lot of heat) so they do indeed act to moderate temperature changes. However, the oceans cannot keep the earth warmer than energy balance considerations tell us it should be. Let’s imagine that the Earth (oceans & land surface) were the temperature they currently are and there was no IR absorption in the atmosphere. Then, by the Stefan-Boltzmann Equation, the Earth would be radiating away much more energy than it is receiving from the sun and it would cool down. In fact, it would continue to cool down until it was ~33 C cooler, which is where the infrared emission would balance the energy it was receiving from the sun.
You simply can’t ignore energy balance considerations.
anna v says:

The Anthropogenic part of CO2 is a few percent of the total atmospheric CO2, a trace addition to a trace gas.

No, the anthropogenic part is all the part that is above the pre-industrial baseline of 280ppm. This means that CO2 has increased by close to 40% over what it was before we began to burn fossil fuels…Or, in other words, we are responsible for about 28% of the CO2 in the atmosphere. (And, some more of the CO2 we’ve emitted has invaded the oceans or gone into the biosphere.)

Let us control H2O then, to be effective. Ooooooooom.

The amount of H2O in the atmosphere is controlled by the temperature. Hence, by increasing the amount of long-lived greenhouse gases such as CO2 in the atmosphere, we will cause an increase in the amount of H2O there. This is the water vapor feedback.
philincalifornia says:

If rising radiative forcing can give downturns in temperature (remember I’m in silly CO2 land for now), then the ONLY explanation one can come up with is that there has to be negative feedback, and the positive feedback theory goes belly-up. Is there another explanation where one could retain scientific credibility ??

It amazes me how people can continue to not understand something when I am sure they are smart enough to do so but they really don’t WANT to understand it! Are you going to tell me that the seasonal cycle is non-existent or unimportant to the climate here in Rochester because the temperature trend over the past week here in Rochester has been up even though the seasonal cycle says it should be down? The fact that CO2 is the dominating forcing controlling the long-term temperature trend does not mean that there are not fluctuations, just as the fact that the temperature trend here in Rochester over the next few months will be dominated by the seasonal cycle does not mean that we will not experience some stretches of several days where the temperature trend is positive.
Heck, even the climate models that have our best understanding of atmospheric physics programmed into them, including rising greenhouse gases and positive feedbacks, show such fluctuations so it is manifestly ridiculous to claim that such fluctuations are inconsistent with this. In fact, the models tell us that decade-long periods with little trend or even a negative trend will not be that uncommon.
As for scientific credibility, while in this little corner of the web, things may seem different, in the larger scientific community it is the so-called “skeptics” that do not have scientific credibility and one of the biggest reasons why is that they repeat silly discredited arguments like this.

September 24, 2009 7:16 pm

Joel Shore says:

As for scientific credibility, while in this little corner of the web, things may seem different, in the larger scientific community it is the so-called “skeptics” that do not have scientific credibility and one of the biggest reasons why is that they repeat silly discredited arguments like this.

Could you be any more insufferable? “This little corner of the web” is the world’s “Best Science” site, and has more traffic than any of the censorship prone alarmist sites. And that is why you post here instead of the pathetic realclimate, tamino, climateprogress, etc. sites. You crave the exposure that a twenty million hit site gives you.
And if you want credibility, quit dodging Anthony’s open invitation to write your own article. Your incessant sniping from the sidelines is getting old, pal.

September 24, 2009 7:20 pm

Phlogiston (15:35:59),
You’re welcome. Your post on Karl Popper was thought provoking. I hope you continue to post here.
I’ve had this link for quite a while. You might be interested:
http://www.stephenjaygould.org/ctrl/popper_falsification.html
Popper’s conclusions:

It is easy to obtain confirmations, or verifications, for nearly every theory — if we look for confirmations.
Confirmations should count only if they are the result of risky predictions; that is to say, if, unenlightened by the theory in question, we should have expected an event which was incompatible with the theory — an event which would have refuted the theory.
Every “good” scientific theory is a prohibition: it forbids certain things to happen. The more a theory forbids, the better it is.
A theory which is not refutable by any conceivable event is non-scientific. Irrefutability is not a virtue of a theory (as people often think) but a vice.
Every genuine test of a theory is an attempt to falsify it, or to refute it. Testability is falsifiability; but there are degrees of testability: some theories are more testable, more exposed to refutation, than others; they take, as it were, greater risks.
Confirming evidence should not count except when it is the result of a genuine test of the theory; and this means that it can be presented as a serious but unsuccessful attempt to falsify the theory. (I now speak in such cases of “corroborating evidence.”)
Some genuinely testable theories, when found to be false, are still upheld by their admirers — for example by introducing ad hoc some auxiliary assumption, or by reinterpreting the theory ad hoc in such a way that it escapes refutation. Such a procedure is always possible, but it rescues the theory from refutation only at the price of destroying, or at least lowering, its scientific status. (I later described such a rescuing operation as a “conventionalist twist” or a “conventionalist stratagem.”)
One can sum up all this by saying that the criterion of the scientific status of a theory is its falsifiability, or refutability, or testability.

Graeme Rodaughan
September 24, 2009 7:36 pm

Stefan (13:54:57) :
Well said.
WRT the presence of Experts not inherently validating what is asserted.
e.g. 1. Lysenkoism had many experts – but no validity.

bill
September 24, 2009 8:01 pm

Smokey (19:16:00) :
“This little corner of the web” is the world’s “Best Science” site, and has more traffic than any of the censorship prone alarmist sites.
Traffic does not equal quality of science.
The voting is by users rather than scientists.
Best Science site? The Blog that brought you:
CO2 condensation in Antarctica at -113F? (cannot remember the original title that was even more ludicrous) with 240 responses trying to decide!

September 24, 2009 8:15 pm

bill,
I agree with everything you said [and it applies even more to RC].
But the CO2 thread was fun.
And the Popper comments are serious.
Admit it: You’re here because you like it!

anna v
September 24, 2009 8:43 pm

Joel Shore (18:53:52) :
The amount of H2O in the atmosphere is controlled by the temperature.
Jumping Jehoshaphat.
Do you hear what you are saying? In a chaotically dynamic system with n variables, where n is a large number, what meaning : “controlled”?
Hence, by increasing the amount of long-lived greenhouse gases such as CO2 in the atmosphere, we will cause an increase in the amount of H2O there. This is the water vapor feedback.
Minuscule also as far as data goes.
BTW
100*0=0
100*dx=a very small difference
CO2 is a trace greenhouse element . period. the tail does not wag the dog.

philincalifornia
September 24, 2009 9:44 pm

Joel Shore says:
It amazes me how people can continue to not understand something when I am sure they are smart enough to do so but they really don’t WANT to understand it! Are you going to tell me that the seasonal cycle is non-existent or unimportant to the climate here in Rochester because the temperature trend over the past week here in Rochester has been up even though the seasonal cycle says it should be down? The fact that CO2 is the dominating forcing controlling the long-term temperature trend does not mean that there are not fluctuations, just as the fact that the temperature trend here in Rochester over the next few months will be dominated by the seasonal cycle does not mean that we will not experience some stretches of several days where the temperature trend is positive.
——————————————
I most certainly do want to understand it.
Smokey’s word “insufferable” is very appropriate in your response to me.
We all know that the climate changes. Temperatures go up and temperatures go down. There are, as you point out, fluctuations.
My question to you (which you evaded by the usual method these days of acting like my articulation of the question was suspect) was as follows:
Your team have a concept called “anthropogenic climate change”, although they frequently leave out the word anthropogenic having just said previously “anthropogenic global warming” and hope they can dupe the public with that little trick.
You, however, told me that 4 Watts per square meter causes anthropogenic climate change. So, ignoring all those fluctuations downwards caused by anything else, please give me a molecular mechanism or chain of molecular events whereby carbon dioxide causes downward fluctuations in temperature. Simple question. There are simple answers, but I can think of none where feedback is not negative. I’ll think about it some more, but I can’t think of any where feedback is zero.
Others please chime in. I don’t mind being educated on this point and being enlightened about the errors in my thinking but, as of now my thinking is that if anthropogenic CO2 causes fluctuations downwards in temperature then I don’t see how there can be positive feedback. Of course, it should also be clear that my problem can be solved by verifying that the term “anthropogenic climate change” as it pertains to CO2 is a garbage term/big hoax.

philincalifornia
September 24, 2009 10:07 pm

Stephen Wilde (23:38:11) :
The water in the oceans performs exactly the same function as GHGs in the air but on a hugely greater scale.
That is consistent with both physics and observations. It beats me why no ’scientist’ has countered that point even though I’ve been saying it for over 18 months now.
————————————–
Well I’m certainly not going to counter it. Rather, I have this question:
Has anyone done a study on residence times of energy or heat (sorry, I forgot who won that argument, but you know what I mean), for example, the extra energy associated with a TSI increase or some other event, such as decreased cloud cover (or both). In other words, the Watts per square meter X the residence time in the ocean of that extra energy/heat. #1
I’m not done yet … and then compared it with the CO2-generated (particularly the anthropogenic CO2 at the top of the logarithmic curve-generated) energy/heat X its residence time in the ocean. #2.
I would guess that, given the huge amount of water vapor in the atmosphere in the tropics together with the lack of penetrance of that form of energy/heat, #2 would be a pretty small number, possibly even zero, whereas #1 would be a much larger number. Is there any literature on this ??

Stephen Wilde
September 24, 2009 11:42 pm

My climate description is in full accordance with Popper’s requirements.
There are multiple ways to falsify it or elements of it and elsewhere I have highlighted some of them.
Instead I just get told that it does not observe basic physics in some unspecified manner or that it cannot be true because so many scientists say something different.
I’ve spent 18 months so far saying what seems to me to be perfectly obvious from basic physics and observations. I’ve been expecting a killer refutation at every stage at which point I would have been content to withdraw.
Instead I find that more and more observed phenomena fit the basic gist of my description even though individual components of it may not be a full account or a fully accurate account of real world climate events.
I don’t expect to get everything right but minor defects do not seem to be discrediting the basic scenario.

Stephen Wilde
September 24, 2009 11:50 pm

“Joel Shore:
You are confusing two different things. Yes, the oceans have a lot of thermal inertia (i.e., they can store a lot of heat) so they do indeed act to moderate temperature changes. However, the oceans cannot keep the earth warmer than energy balance considerations tell us it should be. Let’s imagine that the Earth (oceans & land surface) were the temperature they currently are and there was no IR absorption in the atmosphere. Then, by the Stefan-Boltzmann Equation, the Earth would be radiating away much more energy than it is receiving from the sun and it would cool down. In fact, it would continue to cool down until it was ~33 C cooler, which is where the infrared emission would balance the energy it was receiving from the sun”
Reply:
You are the one ignoring energy balance considerations by ignoring the role of the oceans in creating and maintaining that balance seperately from the similar functuion in the air.
It is true that if the air had no IR absorption capacity there would be no oceans no hydrological cycle and the situation would be as you say.
However the IR absorption characteristics of the air do allow a hydrological cycle and the presence of liquid water oceans and once those two componemts of the system become possible they then take over and control the entire energy flow overwhelming the comparatively miniscule contribution of the air.
The composition of the air is merely an enabler. Once it has served it’s function in permitting the creation of liquid oceans and a hydrological cycle it’s significance becomes marginal.

September 25, 2009 1:47 am

Joel
Let us forget your version of science for the moment. Are you not concerned at the manner in which the data has been collected and used, in order that the science will then reach the conclusion that it does?
* Global Sea levels since 1700, based on just three tide gauge records (from the Northern Hemisphere only) whose figures were extended by 150 years using computer modelling.
*Global temperatures ( a meaningless concept in itself) based on only twenty or so inaccurate stations worldwide from 1850- which have changed in location and number ever since. GISS temperatures to 1880 based on slightly more stations with a very uneven spread, whose use of data has been thoroughly debunked by others here. (Please read EM Smith at chiefio)
*Smoothing out of past temperature fluctuations from the Holocenes to MWP and LIA which -despite your belief- has hitherto been very well documented, in order to support the hypothesis that a limited temperature variation is matched by a barely fluctuating co2 content.
*Ocean temperatures based on records that cover a fraction of a percent of the earths oceans and are again manipulated by the wonders of computer modelling back decades further than they reliably exist.
*Arctic ice measurements from 1979 which takes no account at all of natural longer term oscillations causing freeze and melt, of which the last great melt -1920-1940- would have been seen by older readers parents, as the results-glaciers crashing into the seas and ships sailing in ice free arctic waters- were shown in cinemas worldwide on Pathe news!
As temperatures remain well within the range of natural variability experienced over the last five thousand years perhaps Groucho Marx ought to have the last word. As he nearly memorably said, ‘Who do you want to believe, the IPCC or your own lying eyes?’
best regards
Tonyb

bill
September 25, 2009 3:28 am

anna v (20:43:39) :
CO2 is a trace greenhouse element . period. the tail does not wag the dog.
BUT consider ozone. Even less than a trace gas. But if it were reduced by a few percent globally UVb would be playing hell with our genes, plant growth, plankton survivability. 1% change in O3==2% increase in UV.
From Wiki O3 gives 3-7% of the GHG effect from only 0.00006 percent of the atmosphere (0.6ppm)
Is this not a case of the hair on the flea in the tail wagging the dog? CO2 could be similar?
Stephen Wilde (23:50:41) :
The composition of the air is merely an enabler. Once it has served it’s function in permitting the creation of liquid oceans and a hydrological cycle it’s significance becomes marginal.
You are making some really wild leaps here.
As you said energy balance is everything. The earth is a “grey” body radiator and if the atmosphere were suddenly lost radiation away would be determined by the various emissivities of the different terrain. And temperature will stabilise when grey body radiation out = radiation in. This would bottom out at about -18C.
Adding atmosphere makes it more complex so lets assume all GHGs are removed but the same atmospheric pressure were present (O2, N2, H2 are non GHGs). Without GHGs thermal radiation from the grey body will not be absorbed so only conduction and thence convection will heat the air. With no absorption by GHGs the grey body + atmosphere will still loose the same amount of radiation as if the atmosphere were not present (possibly more as the conducted heat to air will also radiate from the air).
So without any GHGs but with an amosphere the earth will radiate as before – as a grey body.
Major GHG effect (wiki)
water vapor, which contributes 36–72%
carbon dioxide, which contributes 9–26%
methane, which contributes 4–9%
ozone, which contributes 3–7%
Water vapor accounts for the largest percentage of the greenhouse effect, between 36% and 66% for water vapor alone, and between 66% and 85% when factoring in clouds.[8] …
The Clausius-Clapeyron relation establishes that air can hold more water vapor per unit volume when it warms.

If we now add only normal concentration of water vapour to an earth without other GHGs assuming it starts at the average of 13-15degC However this is with a full compliment of GHGs. Water vapour only provides 72-85% of the GHG effect so the temperature will fall. Falling temperature will reduce the water vapour content of air which will lower the GHG effect and the temperature will fall. Falling temperature will reduce the water vapour content of air which will lower the GHG effect an the temperature will fall etc. – a positive feedback that will eventually lead to very low levels of water vapour and hence we will be back at near grey body temperature.
If we now add the other GHGs into the atmosphere then the grey body radiation is reduced and temperature rises. Rising temperature leads to more water vapour which leads to higher temperature etc. We then end up with a warming grey body. At some point the grey body radiation out will equal the incoming radiation and we have temperature “stasis”.

Stephen Wilde
September 25, 2009 10:35 am

bill (03:28:39)
A grey body with a surface comprised of 71% water which then goes on to emit energy to the air above at varying rates and which is overlain by an active and variable hydrological cycle which invariably provides a negative response does not seem to be adequately dealt with in your description. Therefore I conclude that you do not understand my point.
philincalifornia (22:07:16)
As far as I know there is no such data which is why I have approached the issue from basic principles. Let someone get the data and show me (and you) to be wrong if they can.

anna v
September 25, 2009 12:43 pm

bill (03:28:39) :

anna v (20:43:39) :
“CO2 is a trace greenhouse element . period. the tail does not wag the dog.”
BUT consider ozone. Even less than a trace gas. But if it were reduced by a few percent globally UVb would be playing hell with our genes, plant growth, plankton survivability. 1% change in O3==2% increase in UV.
From Wiki O3 gives 3-7% of the GHG effect from only 0.00006 percent of the atmosphere (0.6ppm)
Is this not a case of the hair on the flea in the tail wagging the dog? CO2 could be similar?

No.
The analogy is false. There does not exist another gas, (as there is H2O in the case of CO2), that is ten times more effective than ozone in shielding from UV.

Joel Shore
September 25, 2009 2:27 pm

Stephen Wilde:

However the IR absorption characteristics of the air do allow a hydrological cycle and the presence of liquid water oceans and once those two componemts of the system become possible they then take over and control the entire energy flow overwhelming the comparatively miniscule contribution of the air.
The composition of the air is merely an enabler. Once it has served it’s function in permitting the creation of liquid oceans and a hydrological cycle it’s significance becomes marginal.

This is simply incorrect. We can measure from satellites the degree to which terrestrial radiation from the earth (by which I mean both land and oceans) is absorbed by the various IR-active molecules in the atmosphere and it is considerable. And, we can calculate to a good degree of precision how that absorption changes when one changes the concentration of one of the molecules, such as CO2.

Has anyone done a study on residence times of energy or heat (sorry, I forgot who won that argument, but you know what I mean), for example, the extra energy associated with a TSI increase or some other event, such as decreased cloud cover (or both). In other words, the Watts per square meter X the residence time in the ocean of that extra energy/heat. #1
I’m not done yet … and then compared it with the CO2-generated (particularly the anthropogenic CO2 at the top of the logarithmic curve-generated) energy/heat X its residence time in the ocean. #2.

Yes. These calculations can be done of the extra forcing can be done (although I am not sure what your residence time talk is about). For the TSI during the solar cycle for example, here is a graph that shows that the rough variation in TSI is about 1 W/m^2. However, to get the top-of-atmosphere forcing that has to be divided by 4 and then multiplied by the earth’s albedo (~0.7), which means it translates to a forcing change of ~0.2 W/m^2. [The factor of 4 can be understood as the ratio of the pi*r^2 area of sunlight that the earth intercepts vs the surface area of the earth, which is 4*pi*r^2. Or, to look at it another way, at any given time only half of the earth is seeing the sun at all and even for that half it is generally at an oblique angle.]
By comparison, the top-of-the-atmosphere forcing due to a doubling of CO2 levels is ~4 W/m^2. This number is accurate to about 10% and is not controversial in the scientific community…Even skeptical scientists like Roy Spencer and Richard Lindzen accept it.
From these two numbers (the 4W/m^2 from doubling CO2 and the 0.2 W/m^2 from solar cycle variations), we can determine that it takes about a 3.5% increase in CO2 (which is about 7 years at current ~0.5%/yr growth rates) to match the forcing due to a change in TSI from the minimum to maximum of the solar cycle.
As for cloud cover, a change in the albedo of the earth from, say, 0.30 to 0.31 would give ~3.4 W/m^2 of change in forcing. Now, I believe the albedo of the earth without clouds is something like 0.08, so ~0.22 of it is provided by clouds, which means that a change in 0.01 in the albedo represents a change in amount of reflectivity from clouds by about 5%.
However, the reality of the situation with clouds is that changes in them have too partially canceling effects: an increase in clouds increases the albedo, reflecting more sunlight and causing cooling but it also increases the absorption of infrared radiation emitted from the earth which causes warming. For low clouds, the cooling effect tends to dominate whereas for high clouds, the warming effect tends to dominate. However, in general, since the effects act in opposite directions they partially cancel each other.

Joel Shore
September 25, 2009 2:37 pm

anna v says:

The analogy is false. There does not exist another gas, (as there is H2O in the case of CO2), that is ten times more effective than ozone in shielding from UV.

On the other hand, changing CO2 levels causes changes in H2O levels through the water vapor feedback. At any rate, no analogy is perfect but the basic scientific facts are these:
(1) The atmosphere is approximately 99% diatomic molecules, which are transparent to IR radiation, so the other 1% play a disproportionately large role in the climate.
(2) The main constituent of the other 1% is water vapor. However, CO2 is the next most important…and because it has at least one absorption band where water only absorbs weakly, it too plays an important role. Furthermore, since the dependence of the forcing on the concentration is approximately logarithmic in the range of concentrations of interest, small amounts play a disproportionately large role.
(3) An increase in CO2 causes an increase in water vapor in the atmosphere (because of the increase in temperature) via the water vapor feedback, which magnifies the temperature increase.
All of the above is quite well-understood physics and the first two points in particular were settled decades ago. Even Roy Spencer and Richard Lindzen don’t debate the radiative forcing due to CO2.

Jumping Jehoshaphat.
Do you hear what you are saying? In a chaotically dynamic system with n variables, where n is a large number, what meaning : “controlled”?

The fact that a system is chaotic dynamic and has many variables does not mean that we don’t know anything about it. And, in particular, satellite measurements have confirmed the water vapor feedback.

Joel Shore
September 25, 2009 2:39 pm

However, the reality of the situation with clouds is that changes in them have too partially canceling effects…

Of course, that should be “TWO partially canceling effects”.

bill
September 25, 2009 4:34 pm

Stephen Wilde (10:35:07) :
A grey body with a surface comprised of 71% water which then goes on to emit energy to the air above at varying rates and which is overlain by an active and variable hydrological cycle which invariably provides a negative response does not seem to be adequately dealt with in your description. Therefore I conclude that you do not understand my point
I think you will agree that current levels of water vapour do not currently provide ALL the GHG warming (80% max)?
I think therefore that you will agree that without the other GHGs the temperature MUST fall to maintain radiation balance of in=out
It is therefore logical to assume that the level of water vapour in the air will drop to lower levels.
I must therefore be obvious that the GHG warming will lower (in less than out)and therefore the temperature will drop
It should therefore be obvious that this is positive feedback with a limit set by water vapour in atmosphere = 0
Your supposition that there is energy stored in the oceans which will be releasesd as needed to maintain water vapour can only last for as long as stored energy is available. temperatures must then fall.
If your postulated hydro cycle controls temp then you would have to assume overheat leads to greater evapouration and transfer of heat to the atmosphere but also this would simultaneously increase water vapour lowering radiation transmission. (how does the emissivity of cloud tops compare to liquid water? )
Water vapour is a positive feedback more vapour gives more temp gives more vapour etc. You need a negative feed back to counteract this an provide stability. Clouds would be your best bet for this, But there is research showning that overall clouds give neutral warming.
Can you justify you claim that the “hydro cycle” is negative feedback?

Stephen Wilde
September 25, 2009 6:52 pm

bill and Joel,
There is no point in my attempting point by point discussions with either of you because you both refuse to see the system as a coherent ever changing whole which is what we are faced with.
Anyway I’m off on a vacation shortly and won’t have the time for a while.
Suffice it to say that real world climate behaviour seems to me to fit my scenario rather better than that of the climate models and the passage of time can resolve the issue in due course.

Stephen Wilde
September 25, 2009 7:00 pm

bill and Joel,
Both of you ignore the constantly changing energy transference ability (from surface to space) involved in the phase changes in water from evaporation at the surface to condensation at higher levels.
That is a a highly variable and rapid process intimately bound up with the positions of the air circulation systems globally and if you two cannot see the significance then there is nothing more I can add.

Joel Shore
September 25, 2009 8:33 pm

Stephen,
To the extent that I can make anything sensible out of the explanations you have given, it is this: As the Earth warms and the hydrological cycle strengthens, more water vapor will evaporate and be transported up into the atmosphere where it will condense…and thus there will be an increase in the evaporation & convective transport of heat into the upper troposphere, where I suppose you are imagining it will then escape into space.
If this is what you are talking about, then I think you are essentially correct and what you are basically describing is what is called the “lapse rate feedback”, which is a negative feedback that takes back some of the effect of the positive water vapor feedback. However, it is already included in the climate models. In fact, because the lapse rate feedback and water vapor feedback share so much of the same mechanism causing them, the models do a better job constraining the effect of these two feedbacks together than independently. (I.e., those models that have a bigger positive water vapor feedback have a bigger negative lapse rate feedback…and vice versa, so that the disagreement on the total feedback between models tends to be rather small.)
It is worth noting, by the way, that the most direct consequence of the often-heard claim that the “tropospheric hotspot in the tropics that is predicted by the models is not there” would be that the negative lapse rate feedback is not really occurring and hence that the models may be underestimating the climate sensitivity! I personally don’t think that this is the case since it seems more likely that the missing “hotspot” is a data quality issue. (The expected amplification is seen for fluctuations on the shorter timescales, where the data is reliable … and whether or not it is seen for the multidecadal trends depends strongly on which analysis of the satellite record and radiosonde data you believe because of the real problems both datasets have with spurious secular trends.) But, at any rate, it has always been amusing to me that people who bring up the missing “hotspot” issue are sort of shooting themselves in the foot, metaphorically speaking!
Have a nice vacation!

Joel Shore
September 25, 2009 8:40 pm

By the way, the relevant section of the IPCC AR4 report to read in regard to the water vapor and lapse rate feedbacks (and the other feedbacks too) is Section 8.6, esp. 8.6.3.1 in Chapter 8 here: http://www.ipcc.ch/ipccreports/ar4-wg1.htm

philincalifornia
September 25, 2009 8:40 pm

bill (16:34:44) :
I think you will agree that current levels of water vapour do not currently provide ALL the GHG warming (80% max)?
———————–
What is the exact number in the tropics for water vapour plus the first 285 ppm of CO2 ?? Please, go ahead and pick a typical temperature and humidity.
Also, wouldn’t stasis be a better word than warming for the oceanic tropics ??
Joel, given Lindzen’s paper(s) on negative feedback, I don’t think you two are in total agreement on the math, as you imply.
And yes, I do wish I had more time …..

anna v
September 25, 2009 9:53 pm

This thread is too long ago.
Joel, my opinion is that you are so immersed in models that you cannot see the data, and have reached the point where you implicitly think that the models create reality.
Pity.

philincalifornia
September 25, 2009 10:12 pm

… and these models, that were used to discredit skeptics, have now been discredited themselves simply by the passage of time.
Time for a change …. in personnel.

Stefan
September 26, 2009 1:51 am

Joel Shore (20:33:27) :
It is worth noting, by the way, that the most direct consequence of the often-heard claim that the “tropospheric hotspot in the tropics that is predicted by the models is not there” would be that the negative lapse rate feedback is not really occurring and hence that the models may be underestimating the climate sensitivity! I personally don’t think that this is the case since it seems more likely that the missing “hotspot” is a data quality issue. (The expected amplification is seen for fluctuations on the shorter timescales, where the data is reliable … and whether or not it is seen for the multidecadal trends depends strongly on which analysis of the satellite record and radiosonde data you believe because of the real problems both datasets have with spurious secular trends.) But, at any rate, it has always been amusing to me that people who bring up the missing “hotspot” issue are sort of shooting themselves in the foot, metaphorically speaking!

If the data is bad then how can you claim that the hotspot is there?
If the data is bad, then it can neither be said that it is there nor can it be said that it isn’t there. Perhaps you expect it to be there because other research suggests it is there. But that other research must in the end rely on being able to detect the hotspot in real life. Remember, this is supposed to be settled science.
But if you want to boldly speculate about why it hasn’t been detected, if you want to offer bold speculation that it is there but we simply have had problems measuring it, and you consider this the simplest explanation, then let me offer an even simpler bold explanation: it isn’t detectable because nobody understands the climate. I offer a second, bold and even simpler–and by your reasoning, more likely–explanation:
When clever people are faced with highly complex patterns, they can see/imagine all sorts of images, and believe the images they see are real. The planetary phenomena are like a giant ever changing sets of inkblots, and people keep imagining they see pictures in them. Note the simplicity of that explanation. Note the likelihood.

bill
September 26, 2009 5:17 am

Stephen Wilde (19:00:11) :
Both of you ignore the constantly changing energy transference ability (from surface to space) involved in the phase changes in water from evaporation at the surface to condensation at higher levels
The current condition of the global energy balance is stable (ignoring the last 60 odd years). this means that on average energy gained by the earth system = energy lost by the earth system
That means if you take into account all variable climate multipliers:
hydrological cycle
All GHGs
TSI
Albedo (inc clouds)
Convection
Wind
Earths Rotation
Moon and tides
Chandler wobble
Milkovitch cycles
Temperature of Earths Core
Conversion of fuel to energy
Dust
Aerosols
etc, etc
You get an average temperature of 13 to 18C
None of the modifiers has 100% feedback so chanhe one of them by a few % will cause some perturbation on temperature to maintain energy balance.
I hope you will agree that GHGs are adding to the blanket surrounding the earth (water vapour and GHGs absoption lines are not 100% overlap). They stop some longwave radiation escaping but do not affect the incoming short wave radiation .
You suggested that once the temperature was in equilibrium the hydrological cycle will maintain balance. However if you remove the GHGs as you suggested then more long wave radiation escapes but incoming SWR is not affected.
The only way this can be balance is by reducing the grey body radiation by the temperature falling. This will be slowed by the mass of water but it will fall slowly at the rate allowed by transfer of energy from ocean to air. The ocean is still receiving the same energy input, but is trying to output more yhan it receives. It is inevitable that the temperature falls.
Falling temperature = less water vapour = falling temperature etc. I do not see how water vapour can maintain equilibrium when it is a positive feedback (i.e. it pushes towards instability not stability)

Joel Shore
September 26, 2009 5:34 am

philincalifornia says:

Joel, given Lindzen’s paper(s) on negative feedback, I don’t think you two are in total agreement on the math, as you imply.

I never claimed that I was in total agreement with Lindzen on everything. I explained what we do agree on. Part of the problem with the discussion here is that people don’t seem to distinguish between points where there is at least some significant scientific uncertainty and points where there really isn’t.
Stefan, I didn’t claim that I could say on the basis of the data that the amplification (what some people call the “hotspot”) can be said to be there. Yes, the data is ambiguous. Your alternative speculation ignores several crucial facts:
(1) The amplification is clearly seen when one looks at fluctuations that occur over timescales of several months to a few years. Since the convective processes that are believed to produce this amplification operate over shorter timescales, it is hard to understand how they could be occurring differently in the real world than the model world in such a way that the models still get the right answer over the months to a few years timescale but fail on the timescale of the multidecadal trends.
(2) There really are legitimate problems with the data sets in terms of their multidecadal trends. Hence, there is good reason to believe that the errorbars on the trends that have been computed are very large…and this is evidenced by the fact that different analyzes get very different results.
Finally, as I said, if you want to suppose that the “hotspot” isn’t there then the most direct conclusion one can draw from that in regards to the models is that they currently have a negative feedback that isn’t really there in the real world. This is not some round-about conclusion. It is a direct consequence…since the lapse rate feedback occurs precisely because the temperature at the surface does not need to climb as high as the temperature at altitude in order to lower that temperature at altitude enough to restore the radiative balance of the earth.
I imagine that this is hardly a conclusion that would sit well with most “skeptics” who seem much more comfortable with the conclusion that any lack of understanding of the climate system means AGW won’t be as bad as predicted rather than the conclusion that it will be worse than predicted!

philincalifornia
September 26, 2009 11:10 am

Joel Shore (05:34:55) :
Part of the problem with the discussion here is that people don’t seem to distinguish between points where there is at least some significant scientific uncertainty and points where there really isn’t.
———
…. and of course, that is not a problem at all in HansenGoreLand.

Stephen Wilde
September 26, 2009 11:36 am

Bill,
The system is NOT stable.
The oceans constantly change the rate at which they release energy to the air.
The air circulation always provides a negative response.
When oceans release more energy the air circulations push it faster to space by increasing the size of the equatorial air masses thus compressing the other air circulation systems poleward and speeding up their longitudinal progression.
When oceans release less energy the air circulations try to pull more energy from the oceans by decreasing the size of the equatorial air masses allowing more cold dry air masses to move equatorward over warm waters.
Negative responses in both instances.

Stephen Wilde
September 26, 2009 12:17 pm

The acknowledged shift in the ITCZ to the equator during the Little Ice Age supports my contention that the change in oceanic rate of energy release comes first and the change in all the air circulation systems follows with regional effects dictated by changes in the position of each region relative to the air circulation systems.
One would obviously get far larger climate effects in the northern hemisphere because of the greater proportion as land masses. If the oceanic rate of energy release changes then the effects are amplified over land because the land relies on the oceanic influence to mitigate the rate of energy loss to space.
A greater oceanic influence reduces continental cooling and a weaker oceanic influence allows faster continental cooling. However the background energy flow is always sun to sea to air to space. The air temperature always depends on a balance between the rate of energy flow from the oceans and the energy flow from air to space.A faster longitudinal air flow in mid latitudes during a warming spell increases the oceanic influence over the northern continents.
The equilibrium that matters most as far as the air is concerned is that between the sea to air flow of energy and the air to space flow of energy.
The equilibrium that matters most as far as the oceans are concerned is that between the sun to sea flow of energy and the sea to air flow of energy.
It has never been observed for air circulation changes to occur first and the SSTs to then follow.
The oceans introduce irregularities in the background flow and the air circulation always changes to offset it. Always a negative response and always a sufficient response and it works as well for CO2 as it does for water vapour.

anna v
September 26, 2009 12:17 pm

Joel Shore (05:34:55) :
Finally, as I said, if you want to suppose that the “hotspot” isn’t there then the most direct conclusion one can draw from that in regards to the models is that they currently have a negative feedback that isn’t really there in the real world. This is not some round-about conclusion. It is a direct consequence…since the lapse rate feedback occurs precisely because the temperature at the surface does not need to climb as high as the temperature at altitude in order to lower that temperature at altitude enough to restore the radiative balance of the earth.
There we go again, AGWmism seems to attract scientists who cannot distinguish the difference between a necessary condition and a sufficient condition.
In my logic it is sufficient that the hot spot does not appear when the models say it should, to scrap the models. It is not necessary for the multidimensional dynamical chaotic reality to follow the linear approximations of the GCModels.
Also there is no surprise that the GCM cannot describe long term conditions. Similar models with linear approximations can barely predict the weather for ten days ahead after all.

Joel Shore
September 26, 2009 3:49 pm

anna v says:

In my logic it is sufficient that the hot spot does not appear when the models say it should, to scrap the models. It is not necessary for the multidimensional dynamical chaotic reality to follow the linear approximations of the GCModels.

So, perhaps we should instead of the models just consider the paleoclimate data, which implies “the climate system is very sensitive to small perturbations and that the climate sensitivity may be even higher than suggested by models.” ( http://www.sciencemag.org/cgi/content/summary/sci;306/5697/821 )
By the way, could you fill me in on what “linear approximations” you are referring to?

Also there is no surprise that the GCM cannot describe long term conditions. Similar models with linear approximations can barely predict the weather for ten days ahead after all.

So, do you believe that the models also could not correctly predict the seasonal cycle? After all, if they are garbage after 10 days, I guess predicting out to 6 months is out-of-the-question?

Joel Shore
September 26, 2009 3:51 pm

Stephen Wilde: So, with this dominating negative feedback, how do you explain the glacial – interglacial cycles?

Stephen Wilde
September 26, 2009 4:53 pm

Joel,
I dealt with that on another site :
As far as changes between glacial and interglacial periods are concerned then I’m sure the orbital changes are enough because they substantiially alter the energy input to the oceans for long periods of time and so will change the ocean sea surface temperatures more than can be adequately compensated for by changes in the air circulation systems. The air circulation can push energy to space as fast as necessary to maintain sea surface/surface air equilibrium but cannot pull from the oceans energy that is not there.
That’s enough for now, vacation time.

Joel Shore
September 26, 2009 5:18 pm

Stephen,
So, you are saying that orbital changes, despite causing essentially no change in global annual mean radiative forcing, produces these cycles. And yet, the radiative forcings due to changes albedo from ice sheets and changes in greenhouse gas levels had no significant effect?

Stephen Wilde
September 26, 2009 5:55 pm

Joel,
You aren’t going to let me get away are you ?
Orbital changes alter the amount of energy from the sun capable of getting past the region of ocean surface involved in the evaporative process so as to affect ocean heat content.
That affects the amount of energy available for release by the oceans to the air.
That obviously does affect the radiative balance and is on such a scale that enough of a reduction of the energy going into the oceans can overwhelm the ability of the air to pull more energy from the oceans during a period of cooling so that the whole system gets colder and ice cover expands.
Radiative forcings from those other changes are on a far smaller scale and are easily dealt with by a change in the speed of the hydrological cycle.
It boils down to this:
1) The composition of the air dictates the speed of the hydrological cycle at any given temperature and not the temperature of the Earth.
2) The temperature of the Earth being set by the interaction of sun and oceans (if one ignores geothermal influences).
3) The temperature of the air being set by sea surface temperatures.
I don’t expect you to accept that proposition but I do expect it to become the establishment view in years to come.

Joel Shore
September 26, 2009 6:12 pm

Stephen Wilde:

1) The composition of the air dictates the speed of the hydrological cycle at any given temperature and not the temperature of the Earth.

What are you saying precisely here? Are you saying that the increase in the speed of the hydrological cycle transports more heat up higher into the atmosphere? And, how is this different from the conventional lapse rate description? And, how is it that one can neglect the contribution of the increase in CO2 and the increase in water vapor to the change in the amount of radiative emission that escapes the earth…Or, are you saying the atmosphere just warms up at the effective radiating level without actually warming at the surface.
All your statements are very vague and you have made no connections to the well-understood conventional physics of radiative balance and so forth.

2) The temperature of the Earth being set by the interaction of sun and oceans (if one ignores geothermal influences).

Again, I don’t know what you mean by this and how it is consistent with the known fact that the temperature ultimately has to be set by radiative balance…i.e., the earth receives a certain amount of radiation from the sun and must re-radiate the same amount back out into space (otherwise, if there is an imbalance then over time, it will either warm or cool depending on the direction of the imbalance).

I don’t expect you to accept that proposition but I do expect it to become the establishment view in years to come.

Well, I have to give you one thing – You certainly don’t suffer from false modesty!

Stephen Wilde
September 27, 2009 4:50 am

The speed of the hydrological cycle is variable and that variability is forced by variability in the rate of energy release from the oceans or by changes in the composition of the air. It is that variability that is not properly reflected in the models.
The rate of energy emission from the Earth does change as a result of such forcings but in the end it all has to balance as you say.
The air circulation has to achieve two mutually incompatible functions over time:
That the surface air temperature always approximately matches sea surface temperatures
and
that the energy lost to space always approximately matches energy received from the sun.
It is that interplay which causes observed climate change. Whatever happens the surface air temperature cannot for long diverge from the sea surface temperature and the energy lost to space cannot for long exceed the energy received from the sun so the ‘well understood conventional physics of radiative balance and so forth’ is duly complied with.

V Wilkinson, UK
September 29, 2009 3:26 pm

http://www.climate.noaa.gov/images/about_climate/bigger_images/observing2.gif
The graph above, published by the NOAA ties in generally with the periods discussed in this article. “But after about 1300 solar activity declined and the world began to get colder.” There is a general cooling, I assumed this was the result of the tiling of the earth on it’s axis pushing the northern hemisphere away from the sun but how would I know.
“over the past 50 years solar activity has been at its highest since the medieval warmth of 1000 years ago.”. This may be so, but the graph of global temperatures for the last 150 years in totally anomalous when compared with the former period. How can the last 50 years be compared with the period from 1000 to 1300. The evidence at face value would imply a mechanism which is not strongly dependant on sun spot activity. Is this the case?
Maybe someone with more knowledge than myself could enlighten me on this question.

ron from Texas
October 3, 2009 6:53 am

A person said that there wasn’t proof that cosmic rays affected cloud formation. Another person said that was a good example of being a skeptic. Good point. Now, can the other person be skeptic enough to accept that Svenmark did produce laboratory results that cosmic rays do affect cloud formation and cloud cover? It’s one thing to doubt a theory or even just hold off some judgement until evidence is presented. At what point does a seeming skepticism become a religious faith if one rejects scientific evidence in front of one’s own face?
A number of people have been skeptical because of lack of evidence, one way or another. Of weak theories, here and there. But if I tell you that letting go of the apple will allow it to fall and that’s due to an effect we’ll call gravity and you choose not to believe that no matter how many times I drop an apple on your head, when do we quit calling that skepticism or even standard denial and call it a religious faith or a willful ignorance? “There are none so deaf as those who will not hear, none so blind as those who will not see.”

V Wilkinson, UK
October 11, 2009 4:13 am

“The combined global land and ocean average surface temperature for August 2009 was 0.62°C (1.12°F) above the 20th century average of 15.6°C (60.1°F). This is the second warmest such value on record” – source NOAA

October 19, 2009 8:12 am

The threats are very uncertain and unprecedented………….. Related to global warming and climate change issues and I have published my views through these papers as listed below:
“A Sustainable Development and Environmental Quality Management Strategy for Indore” (Published
Online in “Environmental Quality Management”, 15 (4), pp. 57-68, Summer 2006, Tampa, USA)
Authors : H.K. Gupta, K. Gupta, P. Singh, R.C. Sharma
“Toward a Consistent Approach for Managing Air-Environmental Quality in Indore” (Published in
“Environmental Quality Management”, 17 (1), pp. 65-69, Autumn 2007, Tampa, USA)
Authors : H.K. Gupta, K. Gupta, P. Singh, R.C. Sharma
“A Comparative Study of Air Pollution in Indian Cities” (Published in the Bulletin of “Environmental
Contamination and Toxicology”, The University of Florida, USA, June 2007, 78: pp. 411-416) On-line
(http://www.ingentaconnect.com/content/klu/128/2007/00000078/00000005/00009220)
Authors : A.K. Singh, H.K. Gupta, K. Gupta, P. Singh, V.B. Gupta, R.C. Sharma
“A Comparative Emission Profile of Urban City, Madhya Pradesh, India” (Published in the Bulletin of
“Environmental Contamination and Toxicology”, The University of Florida, USA, Tuesday, July 17, 2007, 79:
pp. 202-208) On-line (http://www.springerlink.com/content/728n1p662812p856/)
Authors : H.K. Gupta, K. Gupta, P. Singh, A.K. Singh, R.C. Sharma

Dan Pangburn
October 27, 2009 11:54 am

Svensmark’s findings may well explain the following:
All of the global average temperatures for the entire 20th century and continuing in the 21st century are readily calculated with no consideration whatsoever needed of changes to the level of atmospheric carbon dioxide or any other greenhouse gas. The method is a straight-forward application of the first law of thermodynamics and uses only the time-integral of sunspot count and 32-year long up trends and down trends that have an amplitude of 0.45 C and are probably related to the Pacific Decadal Oscillation. Data sources, a graph that overlays the measured and calculated temperatures from 1880 to 2008 and a detailed description of the method are in a new paper at http://climaterealists.com/index.php?tid=145&linkbox=true . The standard deviation of the difference between concurrent calculated and measured average global temperatures is 0.064 C. There is no Anthropogenic Global Warming (AGW) (and therefore no human caused climate change) from added atmospheric carbon dioxide.

Freeone
October 30, 2009 7:21 pm

If global warming does not get you the deadly H1N1 flu shot will. Both have a lot in common in that they are based on PHD comic book story lines. The two themes are intertwined to entrap everyone into destruction of the worlds population for the sake of preserving nature and bringing in a new age which is a One World Government run by a very corrupt United Nations.

tall timber
November 3, 2009 6:50 pm

im so tall and my leaves cant breathe coz of al gore. idiot !