Who do you want to see receive $20,000 to put their Earth-saving idea into action? Check out the ten Green Effect finalists, and until July 20 you can vote—up to once a day—for your favorite idea!
Friday, July 10, 2009 |
Friday, July 10, 2009 |
Photo: Alcohol, Feces, Carcasses Fuel "Green" Vehicles in SwedenThe pollution-free train is powered by biogas, a renewable fuel source formed by decomposing micro-bacteria that feed on substances such as alcohol, animal remains, and human waste. Photograph courtesy Lasse Hejdenberg
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ADVERTISEMENTNATIONAL GEOGRAPHIC'S PHOTO OF THE DAY |
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