Favourite “green” music…

What are your favourite songs about the environment?

I can think of a few:

“Vampire Blues” by Neil Young… about our love of oil.
“Cuyahago” by R.E.M. – about the Cuyahago Indians of Ohio.
“The Earth Dies Screaming” by UB40… about, er, the earth dying.
“Mercy Mercy Me (The Ecology)” by Marvin Gaye… see above.
“Never Turn Your Back On Planet Earth” by Sparks… ditto.

I see the Guardian recently ran a similar list of Songs About the Environment

Any others?

Photo thanks to Jake Bellucci