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Human waste to power US city

Human waste to power US city In A First, Methane Gas To Be Harvested On Commercial Scale And Turned Into Clean Fuel San Antonio: The city of San Antonio unveiled a deal that will make it the first US city to harvest methane gas from human waste on a commercial scale and turn it into clean-burning fuel. San Antonio residents produce about 140,000 tons a year of a substance gently referred to as

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