One of @worldeconomicforum #wef19 highlights:
Greenland is losing an average of 260 billion tons of ice each year. In mid-September, a surge of warm air caused a spike in surface melting in southern Greenland one of the largest spikes to occur in September since 1978.
Thanks to NASA time-lapse satellite imagery that we re able to explore the causes and consequences of ocean pollution now and through time. @nasa @tweetsoutloud
