statistics about going green

what is a good song for a video about "going green"??

for my class at school I have to make a video and will be video aa no one speaks, but a song plays throughout the video and one person is going to pick up trash and recycling, etc and I could give some statistics about how these things can help because you really want to send a message and I was wondering what are some good songs to be kind to the earth?? can be instrumental letters do not matter or have I just cannot not think of good songs for the video (and im not going to use the song despite sending it is good not exactly wat I'm looking for) thanks for the help

It is not easy, being green with Kermit T. Frog: http://www.youtube.com/watch?v=RIOiwg2iHio

Green Guerillas Give PG&E A Run For Their Money