George Monbiot’s Heat: How to Stop the Planet from Burning marks an important moment in our civilization’s thinking about global warming. The question is no longer whether climate change is actually happening. The question is what to do about it. Monbiot offers an ambitious and far-reaching program to cut our carbon dioxide emissions to the point where the environmental scales start tipping away from catastrophe. (But not before he devotes a chapter to unmasking the vested interests that have spent fortunes funding the specious science of the climate change deniers.)