If human beings disappeared instantaneously from the Earth, what would happen? How would the planet reclaim its surface? What creatures would emerge from the dark and swarm? How would our treasured structures--our tunnels, our bridges, our homes, our monuments--survive the unmitigated impact of a planet without our intervention? In his revelatory, bestselling account, Alan Weisman draws on every field of science to present an environmental assessment like no other, the most affecting portrait yet of humankind's place on this planet.