Name: Antarctica glacier lost nearly half of its ice in two months
Uploaded: 2025-11-11T21:50:22.181Z
Duration: 55 s
Description: The Hektoria Glacier in Antarctica has lost half of its ice in roughly two months. Researchers say this lightning-fast retreat is reminiscent of the Ice Ages, and could signal a bigger concern when it comes to sea level rise. Watch to see how researchers discovered this massive loss on the frozen continent.

The Hektoria Glacier in Antarctica has lost half of its ice in roughly two months. Researchers say this lightning-fast retreat is reminiscent of the Ice Ages, and could signal a bigger concern when it comes to sea level rise. Watch to see how researchers discovered this massive loss on the frozen continent.

Antarctica's Hectoria Glacier, which is about the size of Philadelphia, lost nearly half of its ice over a two-month period between late 2022 and early 2023. This event represents the fastest glacier retreat ever recorded in modern history, according to researchers from the University of Colorado Boulder.

The glacier's retreat was triggered when it lifted off its bedrock base and began floating, making it vulnerable to ocean waves that broke it apart. Scientists caution that if similar rapid retreats occur in larger glaciers, it could significantly accelerate global sea level rise.

Antarctica glacier lost nearly half of its ice in two months

Antarctica's Hectoria Glacier may be small, about the size of Philadelphia, but what just happened is a really big deal. In just two months, the glacier lost nearly half of its ice. That's five miles of glacier gone between late 2022 and early 2023. That makes it the fastest glacier retreat ever recorded in modern history. Researchers from the University of Colorado Boulder say the glacier sits on a flat stretch of bedrock known as an ice plane. Once it retreated enough, the glacier lifted off the seafloor and began to float, exposing it to ocean waves and that tore it apart. That triggered a chain reaction, a massive calving, ice cracking, breaking, and collapsing into the sea. Researchers say that this kind of lightning fast retreat really changes what's possible for other larger glaciers. Scientists say if the same thing happens to bigger glaciers, it could dramatically speed up sea level rise.

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