It's All Under Control Now!

On June 27, the Intergovernmental Panel on Climate Change (IPCC) issued a statement saying it had "complete[d] the process of implementation of a set of recommendations issued in August 2010 by the InterAcademy Council (IAC), the group created by the world's science academies to provide advice to international bodies."

Hidden behind this seemingly routine update on bureaucratic processes is an astonishing and entirely unreported story. The IPCC is the world's most prominent source of alarmist predictions and claims about man-made global warming… cited by the Environmental Protection Agency (EPA) in the U.S. and by national academies of science around the world as "proof" that the global warming of the past five or so decades was both man-made and evidence of a mounting crisis.

The "recommendations" issued by the IAC were not minor adjustments to a fundamentally sound scientific procedure. Here are some of the findings of the IAC's 2010 report. … In plain English: the IPCC reports are not peer-reviewed. … authors are selected from a "club" of scientists and nonscientists who agree with the alarmist perspective favored by politicians.… The scientists they interviewed commonly found the Synthesis Report "too political" (p. 25).

Plenary sessions to approve a Summary for Policy Makers last for several days and commonly end with an all-night meeting. Thus, the individuals with the most endurance or the countries that have large delegations can end up having the most influence on the report (p. 25).

How can such a process possibly be said to capture or represent the "true consensus of scientists"?

Another problem documented by the IAC is the use of phony "confidence intervals" and estimates of "certainty" in the Summary for Policy Makers (pp. 27-34). Those of us who study the IPCC reports knew this was make-believe when we first saw it in 2007. Work by J. Scott Armstrong on the science of forecasting makes it clear that scientists cannot simply gather around a table and vote on how confident they are about some prediction, and then affix a number to it such as "80% confident." Yet that is how the IPCC proceeds.

The IAC authors say it is "not an appropriate way to characterize uncertainty" (p. 34), a huge understatement. Unfortunately, the IAC authors recommend an equally fraudulent substitute, called "level of understanding scale," which is more mush-mouth for "consensus."

… The news release means that the IAC report was right. That, in turn, means that the first four IPCC reports were, in fact, unreliable. Not just "possibly flawed" or "could have been improved," but likely to be wrong and even fraudulent.

It means that all of the "endorsements" of the climate consensus made by the world's national academies of science -- which invariably refer to the reports of the IPCC as their scientific basis -- were based on false or unreliable data and therefore should be disregarded or revised. It means that the EPA's "endangerment finding" -- its claim that carbon dioxide is a pollutant and threat to human health -- was wrong and should be overturned.