Despite greatly reducing energy use, a new Ethereum blockchain algorithm ended bitcoin mining.
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It took place. The Proof-of-Stake approach, which Ethereum has eventually adopted, has greatly decreased the amount of energy used.
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2016 saw the start of the switchover to the new model. There won't be any noticeable changes for regular network users, but cryptocurrency miners can sell video cards on message boards.
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Proof-of-Stake includes the validation of transactions by ETH cryptocurrency owners rather than by bitcoin miners.
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Beacon Chain, the first iteration of the Proof-of-Stake subnetwork, was released two years ago. It served as a testbed for establishing validators.
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These are users of the Ethereum network who sent money to a service address, where they are not permitted to sell or purchase it, and pledged at least 32 ETH.
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Critics of proof-of-stake exist. They contend that sticking with the old model won't make a difference.
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Now, the Lido community will own a third of the validators' stake, along with the top cryptocurrency exchanges (Binance, Kraken and Coinbase).
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Ethereum's power usage should drop by 99.9% with the switch to Proof-of-Stake.
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Imagine the entire country of Finland being cut off from the world electricity grid to better understand.