Well, I for one am happy that less compute is being wasted on blockchain, and if the total BTUs and tonnes of CO2 remain equal while the proportion allocated to

Well, I for one am happy that less compute is being wasted on blockchain, and if the total BTUs and tonnes of CO2 remain equal while the proportion allocated to AI goes up, that'll also be a good thing. Doing useful stuff, and becoming more efficient (eliminating high carbon wasteful human activities and replacing with AI compute using less overall carbon), is also a net win.