Bill McKibben

Hammarby Sjostad used to be an industrial brownfield, toxic and unpopulated. It was slated to become part of the Olympic Village in 2004; the bid failed, but the momentum for a new neighborhood was enormous, and a town was built. It was designed to be an ecological gem, a place where the average person would live half again as lightly as the average Swede, who is already among the most ecologically minded citizens of the developed world.

In the last year or so, the data about climate change has grown steadily darker. The scale and the pace of global warming seem larger and faster than we realized even a few years ago....

A decade ago most experts thought of global warming as the largest challenge civilization faced—but one that would happen relatively gradually. That cautious optimism has faded as one study after another has proved that the earth was more finely balanced than we’d understood. The climate crisis is bearing down on us much faster than most people realize. The temperature rise has started melting every frozen thing on earth. In the Arctic Ocean, white ice that reflected the sun’s rays is quickly turning into water that absorbs more of the sun’s heat. And, as the ice melts, there’s the very real chance of a catastrophic rise in sea levels.

If there is one sure curse in this world, it’s mineral wealth. Is there gold or diamonds or oil beneath the surface of your land? Then count on poverty, gross inequality and autocracy above. Of all the possibilities, coal is the worst, dirty in every way. When it’s burned, it fills the air with carbon, powering the global warming now unhinging the planet. But before that silent tragedy can take place, there’s a noisy horror—the kaboom of exploding mountains across the southern Appalachians.

As I write these words, the season’s first named storm—Alberto—is developing in the Caribbean. We’re now in what everyone refers to as hurricane season, which is joining winter, spring, summer, autumn, Christmas and football as a fixture on the calendar. (It probably has a brighter future than winter.)A few years ago, words like these would have been scoffed at by most mainstream Americans, treated as the unlikely emanations of radical greens. (Trust me on that.) But within the past year or so the tide has turned. Katrina had something to do with that. So did Al Gore.

In their book, Off Center, political scientists Jacob Hacker and Paul Pierson use statistics to prove that the Republicans have defied political gravity. Instead of trimming their sails to the moderate breezes of the American middle, the Republicans have lurched far to the right. “According to the conventional wisdom about American politics, this shouldn’t be possible,” write Hacker and Pierson.