Ethereum Classic’s hash rate has gone up by about 25% of Ethereum’s hashrate, so at least for now it looks like a lot of the energy use is just moving as miners point their GPU rigs at alt coins. Very curious to see if ETHW, ie Ethereum without the merge, maintains a significant amount of hashing power. Another thing to watch will be if those alt coins are profitable to keep mining or if miners will start selling their rigs.