The list of crimes Donald Trump has committed against the planet, in just two years, is already so impeachably long that his slippery-fish climate denial registers as hardly more than a footnote. “I have a natural instinct for science,” the president bragged to the AP Tuesday, a week after the U.N. raised the alarm on global warming that is much faster, and more horrifying, than it had acknowledged before. It was an especially grotesque demonstration of bad faith, given that just weeks ago, his administration had announced that, as a matter of climate policy, it was now assuming a worst-case...