An Antarctic glacier shrunk by nearly 50% in just two months, the fastest retreat recorded in modern history. Grounded glaciers like Hektoria, which rest on the seabed and don’t float, generally retreat no more than a few hundred meters a year. But between November and December 2022 it retreated by 5 miles. If larger glaciers retreat at similar rates, it could have catastrophic implications for sea level rise. Antarctica holds enough ice to raise global sea level by around 190 feet.
https://www.cnn.com/2025/11/03/climate/antarctic-glacier-hektoria-rapid-melt-sea-level