That's not the point. The person playing the game would pay 10cents in carbon tax or something, which is insignificant to them. The person with a bitcoin farm w

That's not the point. The person playing the game would pay 10cents in carbon tax or something, which is insignificant to them. The person with a bitcoin farm would have to pay much much more, which is a disincentive. And even if it is worth it to them to run with the carbon tax (as it would be for a gamer), the money that's being taxed can be used to offset their emission. That's the point of a carbon tax; pollute if you want BUT you pay for what you generate as pollution so that we can offset it in some other way.