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"TreeHugger has talked a lot about the power of poo over the years, and with sewage-powered robots and microbial fuel-cells fast becoming a reality, it's definitely time we rethink our attitude to human waste. But this might be the"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/cars/this-car-runs-on-poop-the-bio-bug.html>