A few nice Save The Earth images I found:
Saving the earth

Image by Payton Chung
This projected piece (with spoken-word overlay) came preprogrammed with some "50 Easy Ways to Save the Earth" style sayings. Most of the anonymous responses, though, came from a rather sillier school of thought.
Three others: "I will recycle my bong water", "I will pleasure myself in the dark", "I will give it a faux hawk."
("What Will You Do?" by Nina Czegledy, Greg Judelman, Deborah Hession and Daniel Barber)
Do you want to save the earth?

Image by allie™
There was a tiny knock on my door. I opened it to see a tiny boy (maybe 5 years old?) with some papers in his hands.
"Do you want to save the earth?" he asked me.
"Sure!" I said.
"Here you go," he said as he handed me one of the sheets of paper.
"Thanks!" I exclaimed.
"You’re welcome," he mumbled as he bounced away happily.
D’aw. Children.
save the earth

Image by michael pollak
save the earth, it’s the only planet with chocolate!
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February 21st, 2012 at 6:28 pm
Nice… social advertisement
Why don’t you send your advertisement in 12th international CCA as an entry, its one of the most renowned social print advertising award. No entry fee and You get a chance to win US $ 11000 you just have to send your entry along with filled entry form to cca@patrika.com. for more details log on to http://www.concernedcommunicatoraward.org
Cheers!
Mradul