Bitcoin mining generates as much CO2 as a small country, study estimates

The newest study on bitcoin's energy consumption estimates that about 22 megatons in CO2 emissions are generated per year, Wired reports; approximately equivalent to the carbon footprint of Jordan, Sri Lanka, or Kansas City. When other cryptocurrencies beyond bitcoin are taken into the equation, the figure doubles.

The biggest issue is the use of coal and other "dirty energies" in bitcoin mining. According to the paper's author, an energy researcher at the Technical University of Munich Christian Stoll, “Coal is fueling Bitcoin. The question is how to prevent it, and that’s up to local regulators.”

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