6c28ef20-d49b-44fd-a533-d7648958219e_650x366Many of the nation’s coastal cities have seen big increases in recent years in what’s known as “nuisance flooding,” or flooding caused not by storms but by sea level rise, according to a new report issued by the National Oceanic and Atmospheric Administration (NOAA). Nuisance flooding has been on the rise on all three U.S. coasts since the 1960s, the report adds, shooting up by between 300 and 925 percent during that time. Eight of the top 10 cities lie along the East Coast, where the problems nuisance flooding causes – forcing road closures, damaging urban infrastructure such as water and sewer systems, and overwhelming cities’ storm drains – are becoming costlier and more destructive. More