A carbon tax is climatically useless

WUWT
"How much global warming will result from U.S. emissions over the course of this century, and how much of that could be prevented by a carbon tax? These two questions have the same simple answer—virtually none. One or two tenths of a degree a century out with–and without–a carbon tax makes the whole climate debate a peculiar exercise. ........Any tax on carbon dioxide is clearly a case of not getting what you pay for. You will pay a lot, and receive nothing in return, or at least nothing that you will ever realize, or that could be proven."