Researchers say a two-thirds massive cavity from Manhattan is found under a glacier in Antarctica. The pocket is a sign of "rapid disintegration" and just one of the "few worrying findings" made recently about the glacier, the NASA engineer said on Wednesday. "The cavity beneath the glacier plays an important role in the melting," says Pietro Mililo of the reactive motion lab. "As more heat and water fall under the glacier, it melts faster."  The growing cavity sits in Western Antarctica at the bottom of the Travers glacier, which is as big as Florida and contains enough ice to bring more than 2 feet to raise the sea level, NASA said, expanding at an "explosive" speed that surprised researchers conducting a survey conducted by the Glacier Agency [1 9659004] "The findings highlight the need for detailed bottom-up observations of Antarctic glaciers in calculating how quickly global sea levels will rise in response to climate change," said NASA's
CBS News Air Conditioning and Atmospheric Conditions Jeff Berardelli reports that the cavity is probably a significant finding because the Western Antarctic ice sheet is considered one of the most unstable and vulnerable. It seems not only melts at the ocean edges, but also below, and the warmer ocean waters have penetrated.
NASA said the hole was large enough to hold 14 billion tons of ice – the bulk of which had melted. over the past three years. Scientists say the glacier is responsible for about four percent of the global sea level rise.