Solar power has finally passed the point where it saves more CO2 than it produces during construction. (Wind power has not). I'm hoping a southern club member will land-lease to produce solar energy to mine bitcoin we can give to our members. Wrap all the expenses and income in a blockchain, and this could be the first community mining project everyone could stand behind.
What people do with their energy is their business, but if I lived at a lower latitude and could get free power, I wouldn't be using it to support a blockchain that misuses energy like bitcoin does. Survival societies should implement a private blockchain today, and be ready to transfer bitcoin assets and the mining energy to these blockchains when things collapse.