Coastal development destroys critical habitat for marine wildlife, seabirds, and migratory species, causing both population declines and individual welfare suffering.
Coastal development welfare harms are cumulative and hard to reverse: wetland destruction eliminates nursery habitat used by thousands of species; seawall construction removes intertidal foraging zones; beach lighting disorients nesting turtles. Individual animals displaced by development face resource competition in remaining habitat, increased stress, and reduced reproductive success. Coastal setback regulations, wildlife-sensitive lighting standards, and wetland protection laws are the most effective interventions.