I was talking purely about domestic policy, just to clarify. In the US people in the southeast are most immediately affected by global warming, in the form of s

I was talking purely about domestic policy, just to clarify. In the US people in the southeast are most immediately affected by global warming, in the form of severe storms (incidentally states in the southeast are also already among the greatest recipients of federal aid, because of their high levels of poverty). On an international level there will need to be economic cooperation as well but it will look different because there isn’t a single sovereign to collect and distribute revenue. Typically such solutions focus on agreements to reduce tariffs in international trade provided certain conditions and such.