A hidden Antarctic threat could accelerate global sea level rise far faster than expected. Deep beneath floating ice shelves, long channels carved into the ice appear to trap warmer ocean water, dramatically speeding up melting from below. Even regions of East Antarctica once considered relatively stable may be far more vulnerable than realized. Current climate models may be missing this dangerous process entirely, meaning future sea level rise could be underestimated.
phys.org/news/2026-05-rapidly-antarctic-ice-shelves-global.html