Whatever one thinks about the merits of bitcoin, one thing is clear. It has a huge environmental impact.
So far this year, computers used to ‘mine’ the cryptocurrency have soaked up 146 terawatt hours (TWh) of electricity, according to the Cambridge Bitcoin Electricity Consumption Index.
That’s more than the annual electricity used by, say, Sweden. And with bitcoin prices hitting $100,000, interest in mining the stuff is bound to increase.
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