It worked for SO2 emissions. https://voxeu.org/article/lessons-climate-policy-us-sulphur-dioxide-cap-and-trade-programme https://voxeu.org/article/lessons-clim

It worked for SO2 emissions. https://voxeu.org/article/lessons-climate-policy-us-sulphur-dioxide-cap-and-trade-programme https://voxeu.org/article/lessons-climate-policy-us-sulphur-...