There's some good data here - that being said, even if the carbon footprint were literally zero, I couldn't personally support cryptocurrency. Fundamentally it's the antithesis to democracy. Say whatever you will about all forms of government, but ultimately no matter the form, there's some level of accountability. Some governments use elections to facilitate this, others use the threat of rulers being killed. One wa…
And while this is true in theory, the reality as far as I can tell is that we already have a system of no accountability - for a certain privileged sub-group of society. All crypto does is to level the field, and that's a big net win in my book.
Now if panama and paradise papers had lead to anything other than journalists getting killed, trillion dollar corporations didn't keep buying up and stifling competition, insider trading by CEOs and politicians wasn't rampant, politics as a whole was not a money game and celebrities and high ranking officials didn't get off scoff free for crimes that would put lesser fortunate or connected individuals behind bars for years if not decades, maybe, maybe then accountability would be a valid point.
Until then I will celebrate the fact that the odds are a little more evened out now than they were before.