Soldato
A pretty daming piece on the future of bitcoin. https://www.bbc.co.uk/news/science-environment-56215787
I don't see why people are bothered. Particularly as it was mentioned above that 40-70% could be from renewables.
Isn't bitcoin dead anyway the moment the first large quantum computer tries to mine it? Theoretically it could mine all the remaining coins in 2 seconds not taking into account the difficulty jump. Taking into account that, as soon as it started mining, mining would then become so difficult that no other computer/farm would be able to reasonably mine anymore.