Not if you make coal-fired plants illegal to operate. Easy to enforce, since you can see the CO2 emissions and just go seize and demolish the plant if it turns

Not if you make coal-fired plants illegal to operate. Easy to enforce, since you can see the CO2 emissions and just go seize and demolish the plant if it turns on. Can also seize the coal mines. This will have to happen regardless of whether or not cryptocurrency exists.