The History Channel's Life After People series is fantastic. Each episode looks at a couple of scenarios and takes you through a timeline, examining the changes that would occur over time if people were suddenly absent from Earth, and the human impact were no longer a factor in the subject's status, maintenance, etc.
Everyone should watch this series!
There is also an iphone app.
U.S. Navy Is Chasing Several Oil Tankers in the Atlantic
23 minutes ago
