The World Without Us

Saw journalist Alan Weisman speak last night - was truly remarkable. His book "The World Without Us" is just out and he's on tour. The book explores a world without humans, and Weisman interviewed hundreds of people to explore the notion. For example, he talked to city managers in Manhattan to learn how long the city's bridges would survive if workers stopped coming to take care of them. And how long it would take for New York's subways to flood and streets to cave in if workers stopped arriving each morning. It's a fascinating journey - largely about the resilience of nature - and worth picking up.