Naomi Klein’s This Changes Everything (2014) is animated by a counterintuitive insight: It has long been conservatives, rather than the Left or the environmental movement, who have best understood the political implications of global warming. In a chapter titled “The Right Is Right,” she describes attending a Koch-funded conference on climate change in 2011 and hearing a conservative politician warn the crowd that the climate movement was really “a green trojan horse, whose belly is full with red Marxist socioeconomic doctrine.” If only, if only, Klein sighed. If the greens joined forces with