Good question. The answer lies in multilateral agreements (Paris etc.) and in so-called Border Carbon Adjustments. The latter have to be implemented carefully s

Good question. The answer lies in multilateral agreements (Paris etc.) and in so-called Border Carbon Adjustments. The latter have to be implemented carefully so as not to violate any WTO rules [0], but it's possible. [0] https://www.brookings.edu/wp-content/uploads/2018/07/TPC_20180726_Morris-Making-Border-Carbon-Adjustments-Work.pdf https://www.brookings.edu/wp-content/uploads/2018/07/TPC_201...