I know that. I read the paper published in Joule, stating that Bitcoin was responsible for 0.2% of global carbon emissions via 0.4% of global energy usage. That

I know that. I read the paper published in Joule, stating that Bitcoin was responsible for 0.2% of global carbon emissions via 0.4% of global energy usage. That, to me, does not sound significant enough to claim it has a measurable impact on warming, as worldwide electricity usage surely increases by more than 0.4% each year. With that said, I agree that cryptocurrencies are largely unnecessary and their usage should be regulated, together with other more effective measures.