The immediate carbon impact of driving should be solved by improving public transportation and weening people off individual transportation. The immediate carb

The immediate carbon impact of driving should be solved by improving public transportation and weening people off individual transportation. The immediate carbon impact of proof-of-work should be solved by banning proof-of-work. What is the problem any of this is solving? It seems to me like your defense of proof-of-work is "it needs to be this way to work properly and it's not that big a deal", but why do we even need it to work? If it has a clear carbon cost and no perceivable benefit, then it seems obvious to me we should get rid of it.