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According to Nature (This article and its images were originally posted on Nature November 22, 2018 at 02:15AM.)
The cryptocurrency’s production generated about as much carbon dioxide over 30 months as 1 million cars in the same period.
It takes approximately the same amount of energy to mine a dollar’s worth of cryptocurrency as it does to mine a dollar’s worth of certain metals.
Cryptocurrencies such as Bitcoin have raised environmental concerns because ‘mining’ virtual coins requires energy-intensive computer calculations. But quantifying the environmental impact of cryptocurrency production is difficult.
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