I had a quick read through his submission. Here is an example where he made a very elementary error in his judgement:
Quote:that they assume a sensitivity of 3° for a doubling of CO, above pre-industrial values while at most 1° is observed
That in itself demonstrates that he doesn't understand the difference between equibrium climate sensitivity and transient climate response. It's understandable for someone commenting on on subject matter outside his field. The transient climate response for the last 50 years is indeed just above 1 degree, but this fails to include delayed feedback.
It also demonstrates that he didn't bother to read the Working Group 1 report "The Physical Science basis", because the explanation in right there in black and white, and it includes this graph in Figure 9.2:
http://www.ipcc.ch/ipccreports/tar/wg1/fig9-1.htmHowever, the fact that he would make such pronouncements without even once consulting a worker in the field shows an arrogant disregard for experts in the field.
It also begs the question that if he set himself the task of reviewing this very document, how could he miss an entire chapter?
He says in his report that
most people just read the summary for policymakers, however, he obviously didn't even read
that document, because it's spelled out in black and white even in that summary. Most people apparently doesn't include himself:
Quote:The transient climate response quantifies the response of the climate system to an increasing radiative forcing on a decadal to century timescale. It is defined as the change in global mean surface temperature at the time when the atmospheric CO2 concentration has doubled in a scenario of concentration increasing at 1% per year. The transient climate response is
likely in the range of 1.0°C to 2.5°C (high confidence
) and extremely unlikely greater than 3°C.
So is this another example of an esteemed physicist who has "lost it" with old age? It seems the most likely explanation.
It's unfortunate that people like Patrick Moore and our friend here, who lapse into pseudoscience during their senior years by commenting on subjects where they lack any clear knowledge.
Quote:Darriulat seems to be attacking the IPCC from a scientific purest point of view.
I disagree. It's hardly purist when he gets some of the basic facts wrong himself.