Burning coal literally dumps arsenic into the environment.

And to do so for speculative fun is ridiculous.

i have some bad news for you when it comes to how lot of electricity is generated.

Also, how do you decide which computing is good and which computing is bad?

You do, do you? I suppose it is of the variety where miners magically only use clean energy?

Kill the value of POW as a store of money and see how much of that computing still happens. Then you’ll know how useful it is.

nah. the bad news is that a lot of energy is generated with coal. so you get the arsenic and other crap with our without bitcoin.

now, the question is: who decides what’s acceptable and what’s not acceptable for energy use?

The government defines efficiency standards. I’d bet money some are coming for crypto soon.