Poop Could Be the World’s Next Big Energy Resource https://t.co/xMQsU7arU9 via @mental_floss
— Flush This (@flushthis) November 25, 2015
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Poop Could Be the World’s Next Big Energy Resource https://t.co/xMQsU7arU9 via @mental_floss
— Flush This (@flushthis) November 25, 2015