Oh. But surely carbon offsets in the best scenario are an accounting gimmick, and inappropriate for a case like this where you want to compare truly CO2 free pr

Oh. But surely carbon offsets in the best scenario are an accounting gimmick, and inappropriate for a case like this where you want to compare truly CO2 free production of a resource. If a mine releases CO2, but doesn't actually remove it, then it's still released. It sounds to me like I should set up a giant CO2 production factory and then people can pay me not to run it. Great business. The people paying me are still pumping CO2 into the atmosphere but greenwashed with a carbon offset gimmick.