[vageli]

> What % of energy used in bitcoin mining is from coal or other fossil fuels?

> What's the delta amount of fossil fuels burned compared to bitcoin not existing? How does that compare to other ways of sending money digitally?

How would it be possible to answer any of those questions reliably when any individual could set up a miner at their home?

[robbie-c]

I'm only talking analytics-quality data here, at the very least you would look at the major players and see where they are based. You would at least want to include anyone capable of doing setting up their own power plant specifically for mining, like these guys https://www.bbc.co.uk/news/av/technology-58020010