On December 6 signatories of the United Nations’ Framework Convention on Climate Change will meet in Copenhagen to produce a successor to the Kyoto Protocol, and President Obama and many members of Congress would like to pass cap-and-trade legislation beforehand. But does such an approach have a firm scientific foundation? Multiple chains of evidence that have emerged in the last year argue against precipitous action, including the possibility that climate is not as sensitive to carbon dioxide as previously thought. Indeed, the “climate crisis” may itself be an endangered species. In this briefing, Michaels will discuss the relevance of recent scientific findings both to legislation being considered by Congress and emissions reductions schemes proposed by the EPA.