Scientists have revealed a “grim outlook” for Antarctica’s Thwaites Glacier, also known as the ‘Doomsday Glacier,’ due to its potential catastrophic collapse, which could raise sea levels by 65 cm and impact millions. The glacier, monitored since 2018, is retreating faster than before, contributing significantly to global sea level rise. However, trials in the Canadian Arctic show promise in thickening sea ice by pumping seawater onto snow.