ScienceEarth ScienceTopographyglaciersicesattgbookref science-361-6407-icesat-2 NASA space laser targets melting poles Arctic sea ice is vanishing, while melting ice sheets in Greenland and Antarctica are driving an acceleration in sea level rise. … ICESat-2’s three paired laser beams will cover the poles more quickly than its predecessor, and at higher resolution By Paul Voosen Sep 12th, 2018 Previous Next