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Europe's Copernicus Sentinel-1 mission has documented a major change at Petermann Glacier in northwest Greenland, where a 76 sq km section of the glacier's floating ice tongue broke away on August 4, 2026.
The break represents Petermann Glacier's largest loss of floating ice since 2012 and the biggest calving event recorded in the Arctic since 2020. It offers another striking example of how quickly conditions can shift across Earth's polar regions.
The ...
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