Well, cutting CO2 and CH4 emissions won't have much impact on decade scales. But we should still do that, to mitigate longer term damage.

What could help shorter term is adaptation. Moving cities to higher ground, away from oceans. And building dikes, where it's workable. But not in Florida or New Orleans. Maybe not even for New York City.

Also moving populations to areas that require less air conditioning. And moving farmland from areas that are becoming more arid. So generally, poleward.

And then there's immigration. As others move generally poleward. Targets could block immigration, and build walls where feasible. As the US and UK are doing. Or they could focus on integrating immigrants, as some EU nations are doing. That seems like the best long term strategy. Otherwise, you're going to have huge refugee camps, near borders, and probably end up killing lots of people.

And then we have social and political implications. I have no clue about that. Except to extrapolate current trends. So socially, that would be increased concentration of wealth, with the wealthy increasingly isolating themselves from the poor. And politically, increased authoritarian control, with associated surveillance.

Interesting times, for sure.