Green and crypto are incompatible ideas. You don't waste for the sake of wasting when you're looking to be green.
Green and crypto are quite different things, supply and demand — green is about production, the only important part. How we generate energy in a clean and sustainable way.
Crypto is about consumption, and you have no business telling others how they should spend energy. You can however incentivize the consumers to do it cleanly. You can be green and also pro-energy usage.
Being green doesn’t mean being a bully and telling people what they can and can’t do.
2. Banks provide orders or magnitude more services than cryptocurrency ever will