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manure lagoons

Ryan Childress (left), Dominion Energy's director of gas business development, and Kraig Westerbeek, an executive at pork producer Smithfield Foods, stand on a plastic-covered manure pond in North Carolina. Dan Charles/NPR hide caption

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Dan Charles/NPR

Big Companies Bet On Cleaner Power From Pig Poop Ponds

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An aerial view of a hog farm in North Carolina. The shot on the right shows a flooded manure lagoon after Hurricane Matthew. Google Earth (left)/Waterkeeper Alliance/EWG (right) hide caption

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Google Earth (left)/Waterkeeper Alliance/EWG (right)