By ozgurdonmaz / Getty Images The biggest software upgrade in the short history of crypto has fulfilled its promise to wipe out more than 99 percent of the electricity used by the second-biggest cryptocurrency, experts have told AFP. The biggest software upgrade in the short history of crypto has fulfilled its promise to wipe out more than 99 percent of the electricity used by the second-biggest cryptocurrency, experts have told AFP. That is no mean feat, given that the Ethereum blockchain was burning through about as much electricity as New Zealand. Sceptics had expected glitches with the upg…

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