Scientists are increasingly alarmed by the impact of underwater tsunamis generated by calving glaciers in Antarctica, as these events could accelerate ice melt. When large icebergs break off, they create powerful waves that mix warmer ocean water with colder surface layers, potentially speeding up the melting process. Researchers at the British Antarctic Survey are deploying robotic gliders near Sheldon Glacier to measure these underwater waves and their effect on ocean temperatures, aiming to improve predictions of sea-level rise. This research is crucial given the rapid retreat of glaciers like Sheldon and the looming threat of the Thwaites Glacier, nicknamed the "Doomsday Glacier," which holds enough ice to raise global sea levels by 60cm. Antarctica's role in absorbing heat and carbon dioxide is also under scrutiny, with scientists uncertain how its marine ecosystem will respond to rapid warming.