I’ve been struck by the fairly straight reporting of the IPCC Working Group 1 report on the physical science of climate change. Even Graham Lloyd at the Oz could find only one para for delusionist Benny Peiser in his report, headlined “Science solid on global warming, IPCC declares“. What happened to the much anticipated delusionist counterattack?
I think we have the Daily Mail to thank for the no-show. As readers will recall, the Mail ran a story by David Rose under the headline “‘World’s top climate scientists confess: Global warming is just HALF what we said”. This was obviously absurd, and the Mail was forced to retract, but not before the story had been circulated throughout the denialosphere, notably including Bolt, the Oz, and the Torygraphs (both UK and Oz). The Oz eventually retracted, but Bolt didn’t bother. This misfire made it pretty much impossible to get much traction out of the modest adjustments that were actually contained in the report, such as reducing the lower bound estimate of climate sensitivity to 1.5 degrees (it was increased from 1.5 degrees to 2.0 degrees in the Fourth Assessment Report0
What’s interesting here is the fact that such obvious nonsense as Rose’s article got such a credulous reception. The idea that estimates of warming since 1950 could be out by a factor of two, or that a few years of additional data could change them substantial is entirely implausible, and a “confession of error” unsupported by a quote ought to raise alarm bells. Multiple levels of stupidity are needed to explain this. First, the majority of delusionists are simply innumerate, and ignorant of the most basic facts about data (we saw this with the claims about “no significant warming” since 1993). Second, the confirmation bias that affects everyone is magnified to a pathological extent in the parallel universe created by the right. Third, the tribal character of the movement means that there are no incentives to correct error. Presumably there are at least some delusionists who must have thought the “confession of error” story too good to be true. But no one would have thanked them for raising doubts. Whereas real climate scientists disagree vigorously among themselves (though all but a handful agree that the evidence for the basic fact of human-caused climate change is overwhelming), “sceptics” never criticise any claim on their own side, however absurd.
Most obviously, Judith Curry who was quoted in Rose’s article (not as a source for the bogus claims) must have realised it was nonsense. But she implicitly endorsed it, after its publication, but before its retraction. Note that, while saying the article quoted her accurately and would not be welcomed by the IPCC, Curry carefully avoids
mentioning taking a position on its main claim, which she must have known to be false (she mentions the dispute briefly, at the bottom of here post, but offers no opinion). This is fairly typical of her, and her role-model Richard Lindzen.
But in this case, it was too clever by half. A smart delusionist if one existed would have jumped on Rose’s error and used it to build up some credibility for the future.
fn1. Peiser is, or was, a social anthropologist, and, according to Wikipedia, is currently a visiting fellow (not a real job, I suspect) at the University of Buckingham (definitely not a real university). He’s therefore eminently qualified to represent the delusionist viewpoint on issues of physical science and the interpretation of statistical evidence.
fn2. To be boringly clear, I’m fully aware that Buckingham is an accredited institution with lecturers, degrees and so on, legally entitled to call itself a university. It’s still not a real university.