by Patrick J. Michaels, Paul C. Knappenberger
Cato Institute
September 23, 2013
Regulation
The U.S. Global Change Research Program (USGCRP) is a 13-agency entity charged with producing a “national assessment” of climate change to provide the Environmental Protection Agency with information that it can use to regulate carbon dioxide. Unfortunately, none of the assessments provide complete and comprehensive summaries of the scientific literature, but instead highlight materials that tend to view climate change as a serious and emergent problem. In the 2000 assessment, the USGCRP examined nine different general circulation climate models (GCMs) to assess climate change impacts on the nation. They chose two GCMs to use for their projections of climate change. The salient feature of those models is that they achieved something very difficult in science: they generated “anti-information”—projections that were of less utility than no forecasts whatsoever.



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