"Forecasts of sea level rise and increased hurricane activity suggest that our nation's coastlines are becoming increasingly vulnerable to the powerful forces of the ocean. Along our coasts, rising sea levels expose higher locations not usually subjected to the power of the sea and to the erosive forces of waves and currents.[...] The primary objective of [the National Assessment of Coastal Change Hazards] program is to determine and quantify the relative vulnerabilities of U.S. coastlines to coastal change hazards. [...] This webpage provides information on five main components of this work. Each addresses a particular type of coastal change hazard, such as sea cliff erosion and sea level rise, or presents a comprehensive summary of the current state of our coastlines." The five main components identified are: Hurricane and extreme storm hazards; Coastal classification; Long-term shoreline change hazards; Sea level rise hazards; and Sea cliff erosion hazards.
U.S. Geological Survey; St. Petersburg Coastal and Marine Science Center: http://coastal.er.usgs.gov/