On this edition of ST, we speak by phone with Giles Slade, a Canadian environmentalist and journalist whose books include " Made to Break: Technology and Obsolescence in America" and "The Big Disconnect: The Story of Technology and Loneliness." Slade's newest book, just out from New Society Publishers, is "American Exodus: Climate Change and the Coming Flight for Survival." As we read of this book at the New Society website: "Some scientists predict the sea will rise 1.5 meters before 2100, but rapidly melting polar ice caps could make the real amount much higher. In the coming century, intensifying storms will batter our coasts, and droughts and heat events will be annual threats. All this will occur as population grows, and declining water resources desiccate agriculture. What will happen when the United States cannot provide food or fresh water for the overheated, overcrowded cities where 80% of Americans currently live? The good news is that this overall decline of habitability in the mid-latitudes will be matched by increases in the carrying capacity of sparsely populated lands above the 49th parallel.... In this compelling cautionary tale, Slade argues that we are entering a long period of global desperation which will be characterized by human migration on an unprecedented scale."