So they actually get quite limited bang for buck. Or are pretty low CO2 intensive compared to a regular economy with people in it. Or manage to spend a lot on c

So they actually get quite limited bang for buck. Or are pretty low CO2 intensive compared to a regular economy with people in it. Or manage to spend a lot on contractors that are not adequately accounted for, or ... A global carbon tax accounted for at a company level would alleviate this problem of comparisons. And is unfeasible (alas).