Frozen Arctic soils hold vast stores of carbon that may exacerbate global warming. A NASA Arctic campaign is looking for signals that may hold a key to Earth's climate future.
99% of all of Earth’s land ice is locked into the Greenland and Antarctic ice sheets. But from 2003 to 2009, the world’s other glaciers contributed just as much to sea level rise as the two ice sheets combined.
NASA will test a new robotic explorer, dubbed GROVER, in Greenland from early May to early June 2013.