10/22/2009 05:12 am ET | Updated May 25, 2011

11 Strange Clean Energy Sources: Watermelon, Dead Turkeys, Urine And More!

Why stick with boring old oil when you could be powering your home, car and gadgets with slaughterhouse waste, garbage and onions? As strange as transforming these substances into renewable fuels might seem, many of them are viable energy sources and some are already in use around the world.

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