From TheConversation: As coastal flooding worsens, some cities are retreating from the water,

Cities all along the U.S. coasts have seen high-tide flooding days increase. In 2021, the U.S. coasts are projected to see an average of three to seven high-tide flooding days, rising to 25-75 days by midcentury, the National Oceanic and Atmospheric Administration warns in its annual high-tide flooding outlook, released July 14, 2021.