My paraphrase: Decarbonization requires either carbon pricing or regulation. The former is most efficient but you can use AND/OR. Examples exist of mixes and that is fine. But to decarbonize, you need one or the other or both.
My paraphrase: Decarbonization requires either carbon pricing or regulation. The former is most efficient but you can use AND/OR. Examples exist of mixes and that is fine. But to decarbonize, you need one or the other or both.