“Those people who shoot endless time-lapse films of unfurling roses and tulips have the wrong idea. They should train their cameras instead on the melting of pack ice, the green filling of ponds, the tidal swings…They should film the glaciers of Greenland, some of which creak along at such a fast clip that even the dogs bark at them. They should film the invasion of the southernmost Canadian tundra by the northernmost spruce-fir forest, which is happening right now at the rate of a mile every 10 years. When the last ice sheet receded from the North American continent, the earth rebounded 10 feet. Wouldn’t that have been a sight to see?”