As for the ecological impacts, Ethereum is primarily used as the basis for almost all NFTs. Ethereum currently uses Proof of Work like Bitcoin which spends lots

As for the ecological impacts, Ethereum is primarily used as the basis for almost all NFTs. Ethereum currently uses Proof of Work like Bitcoin which spends lots of electricity to achieve decentralization. Unlike Bitcoin, Ethereum has spent years developing Proof of Stake as an alternative. You can follow the progress here: https://ethereum.org/en/developers/docs/consensus-mechanisms/pow/#:~:text=Ethereum%2C%20like%20Bitcoin%2C%20currently%20uses,of%2Dwork%20(PoW).&text=This%20will%20also%20phase%20out%20mining%20from%20Ethereum https://ethereum.org/en/developers/docs/consensus-mechanisms.... Proof of stake should dramatically decrease the electricity requirement of Ethereum.