Old aerial photos give scientists a new tool to predict sea level rise

On 28 November 1966, an American airplane flies over the Antarctic Peninsula just south of the southernmost tip of Chile. On board is a photographer, probably from the U.S. Navy, whose job is to map the Antarctic landscape. But it turns out that the photographer is also documenting a very special situation that is in progress. He shoots an aerial photo of the Wordie Ice Shelf, which, 30 years later, has almost vanished after a total collapse.