Antarctic ice shelves melt faster, accelerating global sea level rise

Antarctic ice shelves may melt faster than expected, potentially accelerating global sea level rise. New research reveals that grooves on the underside of ice shelves trap warm ocean water, significantly increasing local melting and weakening their ability to hold back glaciers. This discovery suggests current sea level rise projections may underestimate the impact of Antarctic ice instability, a risk factor already flagged by the IPCC.