EcoAlert: "Greenland's Great Melt" --NASA Monitoring the Massive Ice Sheet That's Adding 250 Gigatonnes of Water to Ocean Per Year (WATCH Today's 'Galaxy' Stream)

Global sea level rise will be one of the major environmental challenges of the 21st Century. NASA' s Oceans Melting Greenland (OMG) a 5-year airborne and ship-based mission that will pave the way for improved estimates of sea level rise...