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Earth

Warm seawater intrudes into Antarctica’s main ice shelf, raising concerns about sea levels

Schematic map of the Filchner Trough region on the eastern continental shelf of the Weddell Sea. Credit: Journal of Geophysical Research: Oceans (2024). DOI: 10.1029/2023JC020700 The vast Antarctic ice sheet stores more than half of the earth’s fresh water. In some places on the continent, the ice extends over the ocean, where it forms large floating shelves. Observations show that…