Interactive sea level viewer shows what will happen to America's beaches

Gone, obviously. Tom Scocca:

Using our advanced technology, it is possible to look up the beaches in the National Oceanic and Atmospheric Administration's Sea Level Rise Viewer, and to imagine what will happen if we visit them, or try to visit them, in the future-when the sea levels have risen three feet, or six feet, or more, if you want. You can use your pocket phone-computer to watch them move ahead through time below.