Taking apart New York City

"What would happen to the Earth if all humans suddenly disappeared? In his new book, The World Without Us, author Alan Weisman discusses how long it would take for all evidence of human life to vanish from the planet.

Weisman says that after just two days without human intervention, the New York City subway system would be flooded. After one year, every nuclear power plant on Earth would have failed or melted down."

It sounds like he wants you to feel guilty for what humans have done to the earth. Instead he shows that the great man made achievements would vanish like a sandcastle. More importantly though it's the process that's interesting. I have no idea how one would start such an amazing project. Check it out.

http://www.npr.org/templates/story/story.php?storyId=14241572