Naturally Kiawah Magazine Volume 33 | Page 15

Beaches and sea marshes In 1987 the Report of the South Carolina Blue Ribbon Committee on Beachfront Management declared that “[t]he state of South Carolina is blessed with 198 miles of Atlantic Ocean shoreline which is characterized by beautiful dry sand beaches and rolling sand dunes. This shoreline is vitally important to the citizens of this state... The shoreline, with a healthy beach/dune system in place, also provides the first line of defense in protecting life and property against the ravages of storms and shoreline erosion. In addition, the beach/dune system serves as a habitat and nesting area for many species of plants and animals.” The Committee went on, however, to say “[t]he South Carolina beach/dune system is now in a state of crisis. Over 17 miles of our beaches are critically eroding... The primary causes of this crisis include a persistent rise in sea level.” The sense of crisis conveyed in the 1987 report came not only from a realization of the possible impact of climate change and attendant sea level rise, but also because major storms, with extremely high tides, occurred in December 1986 and again on January 1, 1987. The coastline suffered millions of dollars in damage. WINTER/SPRING 2015 • VOLUME 33 The 1987 report was a bit ahead of its time. Most recently, the Intergovernmental Panel on Climate Change (IPCC) and the National Research Council of the U. S. National Academy of Sciences have published extensive reports that relate directly to sea level rise and its causes and effects. This important issue is complex but highly relevant to those of us living on a barrier island. Eight U. S. cities are among the top 20 cities in the world most susceptible to damage from coastal storms. Since the late 1980s, we have seen a succession of major coastal storms including Hugo (1989), Andrew (1992), Katrina (2005), and Sandy (2012), and all caused extensive damage. The amount of federal aid to damaged areas has risen dramatically, from 23% of the cost in the case of Hugo to more than 75% for Sandy. Major coastal storms are now a national issue. An enormous amount of scientific study has been done on global climate change. In December 2014 the National Climatic Data Center of the National Oceanic and Atmospheric Administration (NOAA) reported that “[t]he combined global land and ocean average surface temperature for the year-to-date is 1.22 °F above the 20th century average of 57.2 °F, the warmest such period on record.” Regarding 13