Greenland’s glaciers have retreated so far that they can no longer support the ice sheet that feeds them. The ice sheet system has reached a new normal of consistent annual ice loss.
One of two underwater gliders is deployed from a research ship into Antarctic waters.
NOAA
Jennifer Walsh, National Oceanic and Atmospheric Administration
Sending autonomous vehicles to the Southern Ocean can be fraught with anxiety, especially if one of them doesn’t make radio contact when it’s supposed to.