EU regulates how much power my vacuum cleaner and my lightbulb can use. And to what end? So that some greedy miner can buy cheaper electricity to make numbers and heat! The only way I can see that the environmental problem called Bitcoin can end, is to make it a more expensive.

Power prices could be increased by usage to motivate consuming less and punish those who use too much.

There will still be countries that mine and burn coal so that others can mine Bitcoin. But I believe there are more sustainable industries that could benefit from these wasted resources