The National Geographic Channel has a bunch of videos up on the environmental cost of living. I particularly liked the one on cars. These people take apart a car and then arrange it on a big world map. It's a really neat visual.
I had no idea the pieces of a car came from so far away. That's pretty amazing.
Find three of the videos hereI also want to add this ecological footprint calculator:
Mine is 11.9 hectares, and it says that if everyone lived like me, we would need 6.6 worlds to support the entire population of the world...
http://www.earthday.net/Footprint/index.asp