An excellent video from the Environmental Defense Fund:
[youtube=http://www.youtube.com/watch?v=T9SUDoLsS1E&feature=player_embedded]
An excellent video from the Environmental Defense Fund:
[youtube=http://www.youtube.com/watch?v=T9SUDoLsS1E&feature=player_embedded]
We were just talking about this very topic this weekend with the kids. We all enjoyed the video.