Respected journal Nature has raised more environmental concern about the sustainability of China's energy-hungry bitcoin mines. Though the majority of China's bitcoin mines are powered by renewable energy sources, around 40% of the mines are coal-powered.
Nature says these mines are now so energy-rapacious they could push China away from hitting its 2030 peak emissions carbon emissions target, not to mention the 2060 target by which China wants to be carbon neutral.
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