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A Texas-size chunk of winter sea ice is missing from Antarctica - and it's probably not coming back
Live Science • • world
Key Points:
- A massive area of sea ice about the size of Texas, approximately 250,000 square miles, is missing from the Bellingshausen Sea on Antarctica's west coast during the winter season, a significant deviation from the 1991-2020 average.
- Scientists express concern that this sea ice may never reform, marking the third time in four years that the region has experienced unusually low sea ice levels, potentially linked to ocean changes and global warming.
- Antarctic sea ice decline, previously slower than in the Arctic, is now showing a worrying pattern with record lows in 2016, 2022, and 2023, reflecting broader impacts of a warming climate.
- The loss of winter sea ice threatens ecosystems dependent on it, such as krill and penguins, and disrupts climate regulation functions like driving ocean currents, insulating the ocean, and protecting glacier ice shelves.
- Nearby, the Thwaites Glacier's ice shelf, crucial for restraining glacier ice flow and preventing sea-level rise, is at risk of disintegration, which could contribute to significant global sea-level increases in the future.
