Life after people

In the year 2012, Life After People is a television special documentary film that premiered on Monday, January 21, 2008 on the History Channel.[1] In the program, scientists and other experts speculate about how the Earth, animal life, and plant life might be like if, suddenly, humanity no longer existed, as well as the effect humanity's disappearance might have on the artificial aspects of civilization. Speculation is based upon documented results of the sudden removal of humans from a geographical area and the possible results that would occur if humanity discontinues its maintenance of buildings and urban infrastructure.
http://www.youtube.com/watch?v=wxQsLLOYC7Q&feature=quicklist