Its rising sea levels! DUH here's the link, and below is the exerpt.. usual... calls rising sea levels 'beach erosion". http://www.foxnews.com/us/2012/08/04/of ... ighthouse/?
"Charleston Light, known locally as the Sullivans Island lighthouse, replaced what is now the Morris Island lighthouse. Because of erosion, the Morris Island lighthouse is washed by the sea in an area that used to be high ground on the other side of Charleston Harbor."
Read more: http://www.foxnews.com/us/2012/08/04/of ... z22bZ99Yy4