Scientists have unusually prepared a press release in advance for the expected collapse of Antarctica's Thwaites Eastern Ice Shelf, signaling they see failure as imminent rather than hypothetical.
Satellite imagery shows the 1,500-square-kilometer shelf tearing apart with major fractures, while its flow speed has tripled since 2020 to more than 2,000 meters a year.
Researchers link the rapid breakup to thinning driven by shifting ocean circulation and changes in ice-flow dynamics that are increasing strain across the shelf.
Thwaites is often dubbed the "Doomsday" glacier because its wider destabilization could eventually contribute about 3.3 meters to global sea-level rise.
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With Thwaites' collapse triggering irreversible sea-level rise, what radical adaptations must coastal megacities now consider?
Thwaites Glacier Meltdown: Unavoidable Sea-Level Rise and the Race for Coastal Adaptation
Overview
The Thwaites Glacier in West Antarctica, known as the 'Doomsday Glacier,' is changing faster than almost any other ice-ocean system in the world. Scientists have observed a rapid increase in fractures on its Eastern Ice Shelf over the past two decades, especially near a key pinning point that helps keep the shelf stable. This growing network of cracks is weakening the ice shelf and could lead to further instability. In early 2026, researchers traveled to Antarctica to study these changes and found that the glacier is melting at an alarming rate, raising serious concerns about future sea-level rise.