I've long mused that despite the climate deniers howls, at some point we're going to hit an impasse. Due to historical reasons, we'll save New Orleans and other big name towns on the gulf coast in regions that sit at or below the water line.
However, if you're from some town nobody's ever heard of that's on the coast, you're pretty much fucked. If we believe the models and so far they've been spot on, every year some percentage of these towns are going to get flooded and/or walloped by hurricanes.
Each year the federal government and insurance agencies swoop in (for some value of swooping) and rebuild these towns. At some point insurance companies are going to cry uncle. They'll boost rates so high that literally nobody will be able to afford to rebuild. I could even see a situation where after a federal government has to step in and say "We're moving your entire community 50 miles in land and combining it with this other community" Why? Money and resources. At some point as wasteful as the government is, they're going to see the folly of rebuilding a town over and over and as the tide rises it's going to become less and less financially tenantable and take more and more resources.