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CRYPTOCURRENCY

Totting up bitcoin’s environmental costs

Totting up bitcoin’s environmental costs

AS COINBASE’S IPO shows, cryptocurrencies have many fans. But they have detractors, too. Environmentalists, in particular, fret about how much energy bitcoin uses. In a paper in Nature Communications, a group of academics led by Dabo Guan of Tsinghua University and Shouyang Wang at the Chinese Academy of Sciences examine bitcoin’s...

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