I'm personally advocating for Ethereum which is Proof of Stake and uses a fraction of the energy Bitcoin does.
However, correct me if I'm wrong here because I'm not that much invested in bitcoin as a tech or investment, but isn't almost half of the energy used on bitcoin generated from renewables? I could swear I saw an article about it somewhere.
Although nowadays people seem busy heating up the world telling AI to cheat on their homework, so I wonder if this is a problem with society rather than technology.