Afaik most % of mining happens close to the energy source where it can't even be transported or where it's already being wasted. At least that would be the most economically viable solution; hence hopefully what everyone will eventually be doing (doing otherwise would not be rewardable).

Actually in a way the market price is not only defined by speculation but also how much "paying for energy" compares to "getting the bitcoin reward". So in a way the market price tells us how much people are willing to pay for energy (globally).

But yeah I agree it all sucks that it's going to mess up our planet even more.