You don't necessarily need to enforce it globally. Europe is currently working on a carbon adjustment mechanism which would deal with this kind of problems [1]

You don't necessarily need to enforce it globally. Europe is currently working on a carbon adjustment mechanism which would deal with this kind of problems [1]. It is an extremely complex mechanism to build but it could address the main problem with local carbon taxation. Even better: such mechanism, once implemented, could also be used to twist the arm of countries without a carbon tax of their own or countries are not committed to reduce their emissions by penalizing them harder than other countries. [1] https://ec.europa.eu/commission/presscorner/detail/en/qanda_21_3661 https://ec.europa.eu/commission/presscorner/detail/en/qanda_...