Recent research in *Climate of the Past* shows Greenland's Jakobshavn Glacier is approaching a critical point. Accelerated meltwater runoff from the Greenland Ice Sheet is the cause. Kiel University researchers reconstructed over a century of freshwater discharge into Disko Bay. A significant shift began in the early 2000s. Since 2007, freshwater volume entering the ocean has permanently exceeded historical levels. This indicates consistently higher meltwater output. The ice sheet may be nearing a self-reinforcing, hard-to-reverse threshold.