Up to 59% of Antarctic ice shelves may be at risk of disappearing under high-emission scenarios by 2300, according to a comprehensive analysis of the effect of ocean warming published in Nature. This could result in up to 10 m of global sea-level rise. The modeling suggests that ice sheet losses would be much lower under a scenario in which warming remains below 2°C, which underscores the urgency of pursuing low emissions to safeguard Antarctic ice shelves and coastal regions.