Assuming we don't find better ways to generate electricity. This ignores that a lot of mining power is concentrated in China hooked up to cheap renewable source

Assuming we don't find better ways to generate electricity. This ignores that a lot of mining power is concentrated in China hooked up to cheap renewable sources like hydro-electric power. If we can generate electricity without emissions and run miners off that (wind, nuclear, solar, hydro-electric...) then there is no need for Bitcoin to warm the planet at all.