It's worth mentioning Ethereum has been planning to switch to proof-of-stake (PoS) mining instead fo proof-of-work (Pow) for a long while now. They even have a

It's worth mentioning Ethereum has been planning to switch to proof-of-stake (PoS) mining instead fo proof-of-work (Pow) for a long while now. They even have a "time bomb" built into their PoW algorithm they have to "reset" every once in a while because these original plans were more aggressive. I'm not necessarily in favor of PoS, but it does "solve" the electricity concerns you are raising. Also insert here long winded explanation of how much power is used by existing banking infrastructure.