Antarctic Ice Sheets Are Collapsing -- But When Will Sea Levels Rise?

Yesterday, newly-published scientific evidence revealed that the west Antarctic ice sheet is "collapsing." In fact, this ice melt is pretty much inevitable, and will mean up to 4 inches of sea level rise. What most news stories left out, though, was the timeline for this change to our shorelines. » 5/13/14 4:20pm 5/13/14 4:20pm