Armor (the right kind) against sea-level rise, storm surge
Soft defenses (think wetlands, vegetation) defend the shore more cheaply and effectively from storm surge and sea-level rise than concrete structures. That sturdy wall in front of your place may protect you but “dramatically alter what’s going on next door. Local erosion rates seem to just skyrocket,” according to Northeastern University. For cost-effective projects: municipal and state officials take note.