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Mining bitcoin uses more energy than Denmark: study
JAY GORY, MANAGING EDITOR, science
Extracting a dollar's worth of cryptocurrency such as bitcoin from the deep Web consumes three times more energy than digging up a dollar's worth of gold, researchers said Monday. There are now hundreds of virtual currencies and an unknown number of server farms around the world running around the clock to unearth them, more than half of them in China, according to a recent report from the University of Cambridge. Mining virtual currencies with a real-world value, in other words, carries a hidden environmental cost that is rarely measured or taken into account. read more


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