Rising Seas Threaten to Swallow These Ten Global Wonders

If things continue unchanged, many coastal sites of historical and cultural significance will be underwater. “We have to deal with that knowledge and make some prioritizations,” says Adam Markham of the Union of Concerned Scientists. International organizations like the United Nations Educational, Scientific and Cultural Organization (UNESCO) compile lists of important sites, but determining what’s at most risk and what’s worth saving is no easy task.