Greenland’s glaciers are melting faster and faster. If they all melted, it’s estimated that the sea level around the world would rise by 20 feet.

In this 360° video, get a stunning firsthand look at the Arctic’s disappearing ice, and follow a team of NASA scientists determined to find out why.

Credit: FRONTLINE, NOVA PBS, Emblematic Group, xRez Studio and Realtra VR.