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View of China's military base in the King George island, in Antarctica, on March 13, 2014.     AFP PHOTO / VANDERLEI ALMEIDA        (Photo credit should read VANDERLEI ALMEIDA/AFP/Getty Images)
View of China's military base in the King George island, in Antarctica, on March 13, 2014.     AFP PHOTO / VANDERLEI ALMEIDA        (Photo credit should read VANDERLEI ALMEIDA/AFP/Getty Images)

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    NASA study says ice shelf could disappear by 2020

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NASA study says ice shelf could disappear by 2020

Daniel McGrath, a Research Geophysicist with the USGS, talks to CNN International about the disappearing ice shelf and the impact it would have.

NASA study says ice shelf could disappear by 2020

Daniel McGrath, a Research Geophysicist with the USGS, talks to CNN International about the disappearing ice shelf and the impact it would have.