Well, I think there already some geoengineering solutions that —- if worst comes to worst —- look like they might be effective in combating climate change albeit at the cost of unknown and potentially serious side effects.

I definitely think the US will pull the trigger on stratosphere aerosol injection and other geoengineering technologies before letting Miami go underwater.

But... this debate has been going on a long time

https://news.ycombinator.com/item?id=6450358