Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.

In this NASA handout image obtained December 15, 2014, the glaciers and landscape in northeast Greenland as it looked on April 19, 2013. A warming planet may lead to swifter ice loss on Greenland's ice sheet, and faster sea level rise for the rest of the world than previously predicted, scientists said Monday. Two separate international studies raised concern about the pace of ice melt on the world's second largest ice sheet after Antarctica, and suggested that scientists may have underestimated the variable behavior of Greenland's ice.
In this NASA handout image obtained December 15, 2014, the glaciers and landscape in northeast Greenland as it looked on April 19, 2013. A warming planet may lead to swifter ice loss on Greenland's ice sheet, and faster sea level rise for the rest of the world than previously predicted, scientists said Monday. Two separate international studies raised concern about the pace of ice melt on the world's second largest ice sheet after Antarctica, and suggested that scientists may have underestimated the variable behavior of Greenland's ice.

    JUST WATCHED

    NASA addresses importance of Greenland ice sheet

MUST WATCH

NASA addresses importance of Greenland ice sheet

CNN's Hala Gorani speaks to NASA climate scientist Josh Willis about the significance of the melting of Greenland's rapidly melting ice sheets.

NASA addresses importance of Greenland ice sheet

CNN's Hala Gorani speaks to NASA climate scientist Josh Willis about the significance of the melting of Greenland's rapidly melting ice sheets.