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An Environmental Odyssey

Mark Hertsgaard, award-winning journalist and author, has stepped forward with a wake-up call for our environmental future. His newly released book, "Earth Odyssey," chronicles the six years he spent travelling around the world, surveying the damage humans are inflicting on our environment, and wondering whether humanity will survive its own short-sightedness. The news is not good -- but in Hertsgaard's words, "If things look too hopeless, and if that scares us off, then we are probably going to fail the evolutionary test." Hertsgaard speaks candidly about his experiences and impressions in this striking, provocative interview.