New Yorker: During last falls midterm election campaign, Im not a scientist became a standard Republican answer to questions about climate change. The line seemed to invite parody, and Stephen Colbert (among others) obliged. He played clips of House Speaker John Boehner, then Senate Minority Leader Mitch McConnell, and Florida Governor Rick Scott all offering, more or less word for word, the same refrain. Everyone who denies climate change has the same stirring message, Colbert observed. We dont know...