This is a continuation of a remarkable thread that has now received 10,000 comments running to well over a million words. Unfortunately its size has become a problem and this is the reason for the move.
The history of the New Statesman thread goes back to December 2007 when Dr David Whitehouse wrote a very influential article for that publication posing the question Has Global Warming Stopped? Later, Mark Lynas, the magazine’s environment correspondent, wrote a furious reply, Has Global Warming Really Stopped?
By the time the New Statesman closed the blogs associated with these articles they had received just over 3000 comments, many from people who had become regular contributors to a wide-ranging discussion of the evidence for anthropogenic climate change, its implications for public policy and the economy. At that stage I provided a new home for the discussion at Harmless Sky.
Comments are now closed on the old thread. If you want to refer to comments there then it is easy to do so by left-clicking on the comment number, selecting ‘Copy Link Location’ and then setting up a link in the normal way.
Here’s to the next 10,000 comments.
Useful links:
Dr David Whitehouse’s article can be found here with 1289 comments.
Mark Lynas’ attempted refutation can be found here with 1715 comments.
The original Continuation of the New Statesman Whitehouse/Lynas blogs thread is here with 10,000 comments.
TonyN
Thanks for link on clouds (2450). The first video hardly mentions the impact of clouds on global warming, but the second link to “will clouds accelerate warming or help slow rising temperatures?” is still telling us that “cloud feedbacks are the largest source of uncertainty” (IPCC’s words, back in 2007, prior to Spencer et al.).
Funny that NSF did not make mention of Spencer et al., which showed a clear strongly negative feedback of clouds with surface warming, but I suspect that the video clip was made before Spencer et al. was published.
Max
PS There is also no mention made of the recent model simulations using superparameterization to determine the cloud feedback; these also show a strongly negative feedback from clouds (and are confirmed by Spencer’s physical observations). Again, this info probably also came out after NSF made the videos.
@tonyb & manacker
See these videos at the Fraudulent Climate Website …
on video wall # 5
Kampen om Klimaet – Svensmark (Danske & English with Norsk Commentary & Subtitles)
The Cloud Mystery – Henrik Svensmark (English with Danske Subtitles 2007)
on video wall #3
Cosmic Rays and Climate – by Jasper Kirkby (CERN Colloquium 2009)
These are long, feature-length videos.
TonyB
Sorry. My 2451 should have been addressed to you, rather than TonyN.
Max
Max, Reur 2439.… Re Nelson’s study.
Yes, there are some interesting hypotheses in there.
Coming back to the saturation absorption thingy, I think that he said that this takes place at less than a kilometre, and elsewhere at hundreds of metres from the surface. However, the fact remains that the GHG’s will continue to radiate in the infrared as a consequence of their T’s, regardless of this event. This includes molecules that are closer to the surface than the “extinction height”. Another way of looking at it is that Kirchhoff’s law of radiation states that for any body, its emissivity equals its absorptivity. Whilst it is rather more complicated at the quantum level, the net molecular effect in an homogenous gas parcel can be compared. (apparently, most molecular emissions in GHG’s are the consequence of shedding KE from collisions with non GHG molecules which have previously been thermalised by the GHG‘s)
Bearing in mind that the absorptive depth of the atmosphere is much greater than a kilometre, it follows that the so-called saturation is bound to occur even with much lower levels of CO2, according to Nelson. Notice that in the absorption spectra he cited, they confidently show full absorption for the main bands without indicating any altitude information either incoming or outgoing. (quite a big ?)
There is a model, employing Beer’s law that gives most absorption as occurring below 25 metres from the surface. http://pubs.acs.org/doi/abs/10.1021/ed074p316
Serious money is required to read beyond the abstract, so I’ve not read it, but I imagine it uses first principles somewhat like below. Just consider the top hemisphere to represent the initial surface emission.
Interestingly, for those emissions close to the horizontal, it does not really matter what the photon free path length is, so this compounds the effect of Beer‘s law.
Yes, radiation is equal in all free directions…. A simple example is to look at the sun which appears to be a flat disc of uniform brightness. Yet, towards the outside (the limb) the surface is pointing away from us. (there is a different phenomena known as limb darkening because of the plasma opacity effect at the limb, but it is not noticeable to the SHIELDED eye or cameras)
I’m not certain how the United Nations figures it has the authority to confiscate my personal property. Last Tuesday when I voted, there were no candidates from the UN listed on the ballot.
Also, it’s quite curious that the UN feels that stealing money from people will solve a “scientific” problem………
UN calls for higher taxes to combat climate warning
http://www.breitbart.com/article.php?id=CNG.65d35f849629004f3f01ff977b2a3e33.741&show_article=1
Brute
Yeah. The UN wants more of our dough to shuffle around. This proposal apparently came from the delegates of Norway and Ethiopia.
As one blogger commented:
I agree fully.
In addition, they should make it possible for anyone (like PeterM) who fears global warming to make a voluntary tax contribution (above the normal taxes, of course).
But to ask that majority of the world’s population (in the developed world at least) who have concluded that there is no sound scientific support for the premise of dangerous global warming to pay a tax to support UN money-shuffling in the vain attempt to change our planet’s climate would be undemocratic and arrogant. I would certainly vote against it.
Max
On her blog site, Dr. Judith Curry recently discussed the positive feedback loop between climate science and policy and politics, including some thoughts on the impact of “Climategate”, errors in the IPCC reports, the protection of what she refers to as the “IPCC dogma”, the impact of the “blogosphere” and the role that climate scientists should play in the future to regain the credibility of climate science.
http://judithcurry.com/2010/11/03/reversing-the-direction-of-the-positive-feedback-loop/
I have not yet seen a transcript of the panel discussion itself, which took place two days ago, but I am sure that it will be worthwhile to read (or watch, if it gets on youtube).
Max
Over at Bishop Hill there is another Mann interview: “Mann goes atomic”
Here’s the link to the interview:
http://bos.sagepub.com/content/66/6/1.full
I particularly liked this excerpt:
“Campaign to discredit” Mann?
Hey, he did this all by himself a few years ago, with his phony “hockey stick”.
All the whining and moaning about campaigns to discredit him won’t change the facts: the “hockey stick” was comprehensively discredited and falsified by McIntyre and McKitrick and the M+M findings were confirmed under oath by the Wegman committee as well as the NAS panel.
Why do guys that get caught cheating keep trying to change history to make themselves look innocent? Is it foolish pride, hurt feelings, self-pity or just unmitigated arrogance?
Max
Max,
You might think Man has been discredited. However, it’s just a delusion.
A delusion being: a fixed belief that is either false, fanciful, or derived from deception. In psychiatry, it is defined to be a belief that is pathological (the result of an illness or illness process) and is held despite evidence to the contrary.
Regardless of the merits of his paper, or the merits of many other papers which have described similar hockey sticks, none of them have been “discredited”. Except in the minds of AICC deniers of course!
http://en.wikipedia.org/wiki/Hockey_stick_controversy
PeterM
I suggest you forget about Wiki (i.e. Connolley-censored) comments on Mann’s “hockey stick” (2459) and read Montford’s “The Hockey Stick Illusion”, which covers the whole story of the scientific discrediting of Mann’s study in excruciating detail.
It’s all recorded history, Peter, so don’t be delusional and stick your head in the sand – this would just make you look like a “denier”.
Max
Max,
I guess Evolution, HIV/AIDs, Spherical Earth etc must all be wrong too. Wiki say thay aren’t but that’s all down to William Connolley. Right?
Has William Connolley had a hand in this too do you think?
http://www.skepticalscience.com/broken-hockey-stick.htm
PeterM
I cannot help you much if you believe, as you write:
As to Connolley censoring inputs on topics other than “climate science”, I have not read that this was the case. Have you?
I just think it’s good that Wiki got rid of this hack – even if it may not have been for the “right reason”.
But all this does not change the historically well-documented fact that Mann’s hockey stick was comprehensively discredited by M+M, and that this was later confirmed under oath by the Wegman committee and, after that, by the NAS panel.
For the gory details, read Montford’s book.
Then there are all the historical records plus the 20+ independent studies by different scientists using different paleo-climate methodologies covering locations all over the world (which I cited earlier), which all show that there was a MWP that was slightly warmer than today, thereby scientifically refuting Mann’s conclusion of a “hockey stick”. (But we have covered all that before, Peter.)
Max
Max,
I think you are probably right when you say you can’t help me much. In fact, you probably can’t help at all. Not just me, but you can’t help anyone. You are good at confusing them though, if that is any consolation.
The truth of the situation is that conventional science does get things wrong from time to time. For instance the melting of the Himalayan glaciers was incorrectly reported. It’s not that they aren’t melting but rather, the rate of melting is less than reported. When that happens the mistake is acknowledged and claims are withdrawn.
However, despite your delusions to the contrary no such acknowledgement has ever been issued. You may think it should have been but that’s not quite the same thing.
You quote the National Academy of Sciences. This is what they say in their book Surface Temperature Reconstructions for the Last 2,000 Years written in response to a direct request from Congress.
http://www.nap.edu/catalog.php?record_id=11676#toc
If you pay US taxes you might want to get your money’s worth and read it for free on the above link.
Brute,
We have Hillary Clinton (Mrs. Bill) over here in Oz, and I’ve gone all prickly.
We’ve done all we* can in Oz to support the U.S. military-industrial complex, for instance by buying those bizarrely unsuitable grossly oversized Abrams tanks, (laughing stock of Europe), and the, gawd, strike me pink, that joint strike fighter farcical saga thingy, and what does Hillary do for thanks? She flung dung at us; just yesterday:
I don’t understand why you [Australians] spoil a perfectly good piece of bread, by spreading vegemite on it!!!
Talk about inflammatory!!!!!!!!!!!!…… she has to go!!!!!!!!!!!!!!!!!!!!!
How many millions or billions of democracy campaign dollars could it take to dispense with her?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
BTW, talking of the Abrams tank; some time back, you were bragging about some modified dinosaur marshmallow yank-tank car that had been modified in some way, you alleged, to “kick-ass” (English translation = kick-arse), on “the Nurburg Ring“. (BTW; what part of it ?)
Oh really? How did it go? I hope the sponsors were not too embarrassed if it came up against one of these adequately designed British production (modestly high performance) cars that have much less threat to “peak oil”, and that go around road-bends rather well. (including the current FULL N-Ring)
(That is for a modest start, putting aside other much more expensive Euro-stuff)
*Meaning by commitment an earlier Oz dickhead defence minister. ( Dr. Nelson – medical; arguably better suited to his earlier portfolios?)
There’s a good blog here by Matt Ridley (author of The Rational Optimist) that you all might find interesting; it follows some correspondence between Ridley and DECC’s chief scientific advisor David MacKay.
PeterM
Thanks for again posting (2463) the link to the book: “Surface Temperature Reconstructions for the Last 2,000 Years”.
For my comments on using this book as a supplemental text for older science pupils, please see my 234 on the “what the hell are we doing to our children?” thread, where you also asked me to comment on the same book.
The book is fine. It repeats the IPCC AR4 view on climate change fairly faithfully. Along with AR4, it does, however, miss any new stuff (2006 and beyond), which is a problem in this fast-moving and fast-changing field. Read my comments to find out why.
Max
Peter 2461
If you are quoting John Cook at skeptical science as the font of all knowledge you are getting a bit desperate-perhaps you wanted to support a fellow Aussie?
http://scienceandpublicpolicy.org/images/stories/papers/reprint/John_Cook_Skeptical_Science.pdf
Having said that the series of graphs on your link are interesting as they confirm what I have been saying to you-the warming started pre 1700, way before man had any possible impact.This is also shown in all the instrumental records-why they should need to use treenometers when you have the real thing is a bit baffling.
Giss did not capture the start of the warming in 1880, they merely plugged into it some way down the line
tonyb
Max,
You seem to be under the impression that a couple of, not even papers, but letters from a small number of climate scientists who might go some way to giving you the sort of results you may just consider acceptable, have radically changed the picture since the publication of the last IPCC assessment report.
They haven’t.
If you look at the bigger picture, you can consider scientific papers and letters, on any subject, to be themselves like data points. You’re bound to get a few outliers here and there in either direction. You can either ignore them, or bundle them all together and then take the average. They don’t make much difference to the overall result or the overall conclusions reached by the last IPCC assessment report.
TonyB,
The “font of all knowledge”? Is that the thinking behind baptisms? Or maybe Arial is better than Times New Roman?
PeterM
To your 2468, the latest studies (Spencer et al., Lindzen + Choi), based on actual physical real-life observations from satellites on cloud feedbacks and net overall feedbacks with warming, as well as the surface and tropospheric temperature records (HadCRUT, UAH) and the Argo upper ocean measurements (Loehle) represent fundamental breakthroughs, which all were published after AR4.
These empirical data raise serious doubts regarding the model-based assumptions on 2xCO2 climate sensitivity as reported back in AR4, prior to these new revelations, and hence to the forecasts for the future, which were based on this assumed climate sensitivity.
Writing these off as “outliers” would be the classical “head in the sand” approach of being stuck in a paradigm and ignoring data, which challenge or even falsify this paradigm.
You are dead wrong when you write:
New conflicting empirical data can make all the difference in the world to an old paradigm, as any scientist will tell you, and that is what has happened here even (if you are personally unable or unwilling to see it).
[I can hear the sound of a “paradigm shift”, which is now slowly (and painfully) taking place.]
Don’t be a “denier”, Peter.
Max
Yes Bob, these little matchbox imports are very popular here in the states……..little girls like to drive them…..
Oh, and about the M1 Abrams ………my advice to you and your fellow countrymen would be……IF YOU DON’T LIKE THEM, DON’T BUY THEM.
Maybe you guys could field some of the excellent military equipment that Australia has developed.
Does Australia produce a main battle tank?
Maybe the Brits will allow you to up armor a few Coopers since you can’t seem to produce cars either……….
I’m not sure that I should get involved in this discussion but Brute does offer some good advice about not buying stuff that we don’t like.
I recently was engaged in conversation at a party by a guy from the RAAF who was very critical of the decision to buy US Super Hornet fighters which he claimed, I’m not sure with how much justification, were overpriced and just nowhere near good enough to cope with some Russian jet that the Indonesians had bought at a much lower cost.
I did ask why Australia hadn’t bought the Russian jet as well but he just looked at me rather oddly and sidled off to talk to someone else!
PeterM
Re your 2472, have you ever heard of the concept of “supply chain reliability”?
Probably before your birth, Peter, the “Yanks” (as I believe you call them) saved your bacon from a Japanese invasion.
We in Switzerland have also not forgotten that these same “Yanks” (along with their allies) saved our bacon from Nazi Germany and later kept us from getting overrun by the USSR.
Important historical points to remember, Peter.
Max
Max,
Despite what you might feel I’m not anti-American. They can be quite nice people, too nice sometimes, and we get along just fine. Well most of the time anyway :-)
Its interesting that Brute feels that a small car is only socially acceptable for young women. If he’s built like some Americans, and Australians too for that matter, he may well be too fat to get into one. If that’s the case then he should give up cars completely and either walk or use a bike.
I’m not too socially liberal about the grossly obese I’m afraid.
Max,
When’s the next IPCC report due? 2013?
Well we shouldn’t pre-judge what it might say, but it’s going to take a bit more than a couple of letters from the usual suspects to change the overall picture significantly
“paradigm shift”?? I don’t think so. I don’t think you’re going to a happy bunny when it is finally published.