A World Without Humans

This is a fascinating podcast from the Scientific American podcast archive. Journalist Alan Weisman conducts a giant thought experiment — what would the world be like if humanity just vanished tomorrow? What would be left? How would nature respond? And what would happen to all our stuff? Would some of the things we leave behind be indelible?

You might also be interested in the book he wrote on the subject which got rave reviews: The World Without Us