Songs about ecology

"Mother Nature's Son" - The Beatles.
"Everest" - Ani DiFranco.

And then there's the Talking Heads "(Nothing but) Flowers."
Sorry couldn't resist.

"Big Yellow Taxi", by Joni Mitchell - they paved paradise and put up a parking lot.

Marty

Interesting Project:

A song that is not in the mainstream, but is worth checking out is "The Planet" by Hans Theessink. THe song is on his CD "Call Me" from circa 1992 I believe. It also showed up on one of Burmeister's Sampler CDs.

Here's a link to the lyrics:

http://www.ildb.info/Hans+Theessink-The+Planet,lid219773-a6580.html

and a link to the CD:

http://cdbaby.com/cd/hanstheessink

Cheers,
Coffee_nudge

Dylan's "Hard Rain". This song has other geopolitical messages, but there is definitely an environmental component to it.