Musk decries bitcoin's 'insane' energy use after Tesla payment U-turn

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Musk decries bitcoin's 'insane' energy use after Tesla payment U-turn

Doubles down on sudden rejection.

Tesla boss Elon Musk on Thursday denounced the "insane" amount of energy used to produce bitcoin, doubling down on his sudden rejection of the cryptocurrency as a means of payment over environmental concerns. Musk, one of bitcoin's most ardent backers, tweeted a graph of ...

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