By INA FASSBENDER / AFP An army of computer programmers scattered across the globe is set to attempt one of the biggest software upgrades the crypto sector has ever seen this week to reduce its environmentally unfriendly energy consumption. An army of computer programmers scattered across the globe is set to attempt one of the biggest software upgrades the crypto sector has ever seen this week to reduce its environmentally unfriendly energy consumption. Developers have spent years working on a more energy-efficient version of the ethereum blockchain, a digital ledger that underpins a multibill…

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