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Coal is one of the worst culprits of global warming....As its use should not be abandoned in the short term, several companies are studying ways to make it less polluting. Who went ahead, it seems, was the American OriginOil...
Jul 18, 2011 2:00:08 PM
Coal is one of the worst culprits of global warming....As its use should not be abandoned in the short term, several companies are studying ways to make it less polluting. Who went ahead, it seems, was the American OriginOil...
