borehole in the Northeast Greenland Ice Stream — Greenland's largest frozen river that serves as the main artery through which ice is discharged from the ice sheet's interior into the North ...

But in March 2022, an intense atmospheric river delivered 16 billion tons of snow to Greenland. That was enough snow to offset the sheet's annual ice loss by 8%, the study reports.

Glaciologist Alun Hubbard holds up part of a 15-meter-long ice core, collected in southeastern Greenland to study how atmospheric rivers impact the Greenland Ice Sheet. The visible divide between ...