People's Century: Endangered Planet

An excellent history documentary about the historyof environmental issues:

Part 1:
www.youtube.com/watch?v=FufZY4-vFLQ

Part 2:
www.youtube.com/watch?v=fkVcgluwprk&feature=relmfu

Part 3:
www.youtube.com/watch?v=DaPdG0aiEGA&feature=relmfu