Bitcoin, and almost all cryptocurrency work by deliberately consuming compute resources, which is electricity. It does this in staggering amounts, and is deliberately adjusted to keep pace with any technology improvements. Crypto means burning an artificially high amount of energy just to do money.
Cryptocurrenices are also a central ledger. It is physically distributed, ergo “decentralized,” but it is is very centralized source of information.
There’s probably some edge cases that address these, but the movement as a whole is probably more dark than light.