Overview
- GEOMAR scientists report that increasingly frequent rain events, including in winter, deliver heat to glaciers and can double melting by darkening refrozen surfaces.
- Field observations describe rapid fracture growth that routes meltwater deep into the ice, speeding the slide of the ice sheet toward the ocean.
- A VUB study published in The Cryosphere couples a polar regional climate model with a Greenland ice‑sheet model under the SSP5‑8.5 scenario to capture powerful albedo feedbacks.
- Recent analyses suggest potential tipping behavior, with a single‑year loss near 230 gigatons flagged as a critical threshold and early‑warning signals of reduced stability in west Greenland.
- Greenland is currently losing roughly 270 billion tonnes of ice per year, and complete loss would raise global sea level by about 7.4 meters.