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Saturday, December 15, 2007
The UN Climate Change Numbers Hoax

By John McLean and Tom Harris in the Canada Free Press

It’s an assertion repeated by politicians and climate campaigners the world over – ‘2,500 scientists of the United Nation’s Intergovernmental Panel on Climate Change (IPCC) agree that humans are causing a climate crisis’. But it’s not true. And, for the first time ever, the public can now see the extent to which they have been misled. As lies go, it’s a whopper. Here’s the real situation.

The Fourth Assessment Report (AR4) released during 2007 (upon which the UN climate conference in Bali was based) includes the reports of the IPCC’s three working groups. Working Group I (WG I) is assigned to report on the extent and possible causes of past climate change as well as future ‘projections’. Its report is titled “The Physical Science Basis”. The reports from working groups II and II are titled “Impacts, Adaptation and Vulnerability” and “Mitigation of Climate Change” respectively, and since these are based on the results of WG I, it is crucially important that the WG I report stands up to close scrutiny.

Consensus never proves the truth of a scientific claim, but is somehow widely believed to do so for the IPCC reports, so we need to ask how many scientists really did agree with the most important IPCC conclusion, namely that humans are causing significant climate change--in other words the key parts of WG I? An example of rampant misrepresentation of IPCC reports is the frequent assertion that ‘hundreds of IPCC scientists’ are known to support the following statement, arguably the most important of the WG I report, namely “Greenhouse gas forcing has very likely caused most of the observed global warming over the last 50 years.” The numbers of scientist reviewers involved in WG I is actually less than a quarter of the whole, a little over 600 in total. In total, only 62 scientists reviewed the chapter in which this statement appears, the critical chapter 9 “Understanding and Attributing Climate Change”.  Of the comments received from the 62 reviewers of this critical chapter, almost 60% of them were rejected by IPCC editors. And of the 62 expert reviewers of this chapter, 55 had serious vested interest, leaving only seven expert reviewers who appear impartial. 

That the IPCC have let this deception continue for so long is a disgrace.  Secretary General Ban Kai-Moon must instruct the UN climate body to either completely revise their operating procedures, welcoming dissenting input from scientist reviewers and indicating if reviewers have vested interests, or close the agency down completely. Until then, their conclusions, and any reached at the Bali conference based on IPCC conclusions, should be ignored entirely as politically skewed and dishonest. Read more here.

John McLean is climate data analyst based in Melbourne, Australia. Tom Harris is the Ottawa-based Executive Director of the Natural Resources Stewardship Project (nrsp.com)

Posted on 12/15 at 07:10 AM
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