It’s not simply bitcoins energy consumption - it’s the energy consumption relative to other PoW cryptocurrencies. There was a study published recently showing

It’s not simply bitcoins energy consumption - it’s the energy consumption relative to other PoW cryptocurrencies. There was a study published recently showing that Bitcoin uses more than 2000x more energy per transaction than dogecoin, for example. No doubt it is this revelation that has made musk reconsider which cryptocurrency he should be backing.