So basically they're all bad except for SV? 1 Gallon of gas makes 2.4 kg emissions, so instead of swiping a card its burning a few gallons of gas, or 50 gallons for BTC.
Rather, they are all bad. Proof of stake cryptocurrencies is the state of the art in consensus protocols today, not proof of work. This is mostly a ranking of who’s the worst among the worse technologies.
