Vanishing Coastlines

Coastlines of the world will shrink remarkably by 2020 as waters levels rise at the present rate of warming.  TimeStar posits that warming  and storming will continue for decades, despite the solar phase shift in process in 2013.  Much warming is associated with magnetic changes and are internal to the Earth along with atmospheric damage that will require decades (possibly centuries) to heal.  A map of vanishing lands that National Geographic magazine published reflects information that I have seen over the decades, most specifically inundation of the Mississippi Valley and Florida with water.  Florida already experiences a large number of sinkholes because of high water levels. http://ngm.nationalgeographic.com/2013/09/rising-seas/if-ice-melted-map