[seibelj]

Hydro power, solar power, wind power, these do not contribute to global warming.

Plus, Bitcoin is a valuable asset (for many people) and the reason it keeps its value is that it's safe. Energy is expended to keep it safe. That is a free market choice, and you can disagree with it, but many choose to pay for energy to protect Bitcoin.

[speedgoose]

I do not believe bitcoin only run on clean energy. Even if it was the case, this energy could have a better usage like solving actual problems instead of bruteforcing checksums.

The free market needs to be controlled when it destroys the environment. The people needs to be responsible for their actions.