Nobel-Prize-winning economist Paul Krugman can't fathom how anyone of sound mind could doubt the prognostications of the leaked U.S. climate report. Bad enough that climate deniers always argue in "bad faith," Krugman fumes in a recent op-ed, but now they're abetting the Republicans' "project of destroying civilization." What drives this "epidemic" of deceit? he wonders. Answer: an "axis of climate evil" comprised of fossil-fuel opportunists, right-wing ideologues and ego-maniacal intellectuals. A related question emerges. What dark forces are at work to compel one of the world's most celebrated liberal thinkers to brand those who disagree with him evil?