Are the currently strong going to keep the weak down, will the weak destroy the strong, will power be distributed to minimize the number of weak at the expense of the strong, or will something else entirely happen? My bet is that the strong have quite a lot longer to go getting stronger before the weak can enact meaningful change.
Also worth noting are that there is a large gap between, for example, the American weak and the global weak. The global weak will suffer more and have less avenues to enact change. Americans have the luxury of climate “debate” while Indonesia (not even a super poor country) moves its capital and while others suffer.
EDIT: To be clear, I think this situation is absolutely horrible. Based on how countries have been acting for the last couple decades though, I'm not expecting things to get better before they get much worse.
I could see something like a carbon credit for individuals based on their actions that impact the climate such as limiting their power use, not driving their car frequently, or not having pets. This type of rationing also has problems, though, as it starts to become effectively limiting things to wealthy people who can afford a lifestyle in which they can use a car less frequently or own an energy-efficient home for example.
I don't think there is a reasonable way of rationing climate relief in a morally justifiable way.