"Today, we confront another, even more transforming determinant of our lives and culture. Harbingers of climate change are undeniable. It may seem that climate change is last year’s news—forgotten and overtaken by understandable preoccupations with the economy. But inexorably, measurably, it is progressing even as the Congress and the country sleepwalk through it. Climate change is to America what the German buildup in the 1930’s was to the British: The threat that grows more menacing even as we determinedly pretend it is not there."