If you want to have rather green cryptos, you need to exclude those who rely on proof-of-work to secure the network.
Btw. Ethereum showed that a transition from proof-of-work to proof-of-stake is possible.
If you’re not interested in the complexities that a lot of cryptos have, because you just want to transfer value efficiently, have a look at Nano (https://nano.org)
If you want to have rather green cryptos, you need to exclude those who rely on proof-of-work to secure the network.
Btw. Ethereum showed that a transition from proof-of-work to proof-of-stake is possible.
If you’re not interested in the complexities that a lot of cryptos have, because you just want to transfer value efficiently, have a look at Nano (https://nano.org)