Let’s also note that the carbon footprint for a single mined bitcoin is 191 tons of carbon dioxide:
Cryptocurrencies should obviously be banned. Let's just stop playing passive aggressive here, crypto is interesting technology used almost entirely by scammers and money launderers. And forcing them to obey the law is the same as banning. https://t.co/R4BzMpAsiS
— Matt Stoller (@matthewstoller) November 1, 2021
https://twitter.com/mistertodd/status/1455294115243909121

Cryptocurrency is the greatest fraud to be perpetrated on investors since Charles Ponzi pulled off his scams.