Various forms of carbon pricing are already implemented. There is for example a minuscule carbon tax in Germany and a carbon market in the EU. Naturally there a

Various forms of carbon pricing are already implemented. There is for example a minuscule carbon tax in Germany and a carbon market in the EU. Naturally there are big enough holes in both that they're not particularly effective, but that is just because politicians are currently busy pretending to solve the crisis without implementing any solution.