Ice Melt
Scientists drilling at Prudhoe Dome, a Luxembourg-sized ice bulge in northern Greenland, found it fully melted between 6,000 and 8,200 years ago during early Holocene warming 3-5°C above today. Sediment dating from the 2023 GreenDrill project, published in Nature Geoscience, warns of similar risks from human-driven climate change, with implications for sea-level rise.
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A new study reveals violent underwater vortices beneath Antarctica's ice shelves that draw warm water to the surface, accelerating ice melt. These 'storms' are driven by the freezing and melting of sea ice, displacing protective cold water layers. The findings highlight rapid changes in the West Antarctic Ice Sheet, threatening global sea levels.