I have watched with a kind of petrified fascination in recent years as the world creeps closer to what looks to me like disastrous climate change. The poles are melting. Ocean levels are rising. The face of the planet is torn by unprecedented natural disasters. States of emergency have become so routine that governors always seem to be proclaiming one. Do they have drafts of proclamations on file?

The political responses to this condition seem to fall along party lines. Democrats think legi...