From the Shoreline & Coastal Planners Group, a collaborative project of Washington Sea Grant and the Washington State Department of Ecology: As sea levels rise, the shallow groundwater table in coastal communities will also rise. This slow but chronic threat can flood communities from below, damaging buried infrastructure, flooding below-grade structures, reducing storm sewer capacity, liberating pollutants, compromising foundations, and emerging above ground as an urban flood hazard that can amplify overland storm flooding. As communities develop climate adaptation plans to…