Not all cryptocurrencies are the same. Many newer ones run PoS which doesn't 'waste' energy. The Celo network goes even further and is carbon negative. It sends

Not all cryptocurrencies are the same. Many newer ones run PoS which doesn't 'waste' energy. The Celo network goes even further and is carbon negative. It sends a portion of block rewards to Project Wren, which uses them to buy carbon credits to offset more carbon than the network emits to run. https://medium.com/celoorg/celo-to-go-carbon-neutral-with-project-wren-66f7dda5512d https://medium.com/celoorg/celo-to-go-carbon-neutral-with-pr...