Well, any changes in sea level and habitability will be a mix of very gradual shift in tidal patterns and acute high-impact flooding events. Areas will not sudd

Well, any changes in sea level and habitability will be a mix of very gradual shift in tidal patterns and acute high-impact flooding events. Areas will not suddenly go from habitable to inhabitable all at once. In the US, it is very expensive and sometimes impossible to procure insurance for areas at extreme risk of wildfire or flooding. This is essentially the private market's assessment of risk based on location. Most people will leave if they are unable to reasonably insure their homes and property. Cities at very high risk will build seawalls and flood defenses in order to protect their taxpaying base. These are acute solutions to acute impacts. To preempt some replies, I am not denying the extreme scale of the challenge ahead and the broad impact, especially in less developed and highly dense nations. I believe it is an inevitable adjustment that societies will need to make.