This Changes Everything: Capitalism vs. the Climate" is a book of such ambition and consequence that it is almost unreviewable. Klein's fans will recognize her method. To call "This Changes Everything" environmental is to limit Klein's considerable agenda. "There is still time to avoid catastrophic warming," she contends, "but not within the rules of capitalism as they are currently constructed. Which is surely the best argument there has ever been for changing those rules." Many share Klein's sentiments. Klein diagnoses impressively what hasn't worked. No more claptrap about fracked gas as a bridge to renewables. Enough already of the ... nonbinding agreements that bind us all to more emissions. Klein dismantles the boondoggle that is cap and trade. She skewers grandiose command-and-control schemes to re-engineer the planet's climate. No point, when a hubristic mind-set has gotten us into this mess, to pile on further hubris. In democracies driven by lobbyists, donors and plutocrats, the giant polluters are going to win while the rest of us, in various degrees of passivity and complicity, will watch the planet die. "Any attempt to rise to the climate challenge will be fruitless unless it is understood as part of a much broader battle of worldviews," Klein writes. "This Changes Everything" is ... the most momentous and contentious environmental book since "Silent Spring."