[taberiand]

Sure, and the people who live near oceans can just sell their houses and move as sea levels rise.

People forced to migrate due to fresh water scarcity will migrate to where fresh water can be found, which is likely where other people already are, increasing pressure on the increasingly scarce water and other resources in that area, driving conflict, disease, famine, further migration into increasingly stressed areas and leading to social and ecological collapse across the board.

Access to reliable fresh water is foundational to stable society.