The most sustainable cryptos, Musk asks the question

 Elon Musk says they will no longer accept Bitcoin at Tesla due to environmental concerns, raising the question, what are the most sustainable crypto currencies?

SolarCoin, Bitgree, Stellar, Cardano, Ripple, Nano, Eosio, Tron, Burstcoin, Ethereum's Beacon Chain, according to these guys at Leafscore

https://www.leafscore.com/blog/the-9-most-sustainable-cryptocurrencies-for-2021/