Coal kills almost as many Americans as there are coal miners. How many lives is one miner's job worth? @mzjacobson https://www.sciencedaily.com/releases/2017/06/170601133430.htm …
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Coal kills almost as many Americans as there are coal miners. How many lives is one miner's job worth? @mzjacobson https://www.sciencedaily.com/releases/2017/06/170601133430.htm …