Climate change challenges conservative and libertarian instincts in a way that makes it harder to believe the evidence, no matter how strong it is. Climate evangelists likewise tend to embrace science and evidence when it confirms their prior political views and reject it otherwise. For progressives and big-government liberals, climate change is easy to accept to the extent it seems to call out for a big-government solution. But even among climate evangelicals, where science and their prior political commitments conflict, politics usually win.