US EditionUnexpected Climate Feedback Links Antarctic Ice Sheet with Reduced Carbon Uptake
Iron from icebergs in the Southern Ocean is highly weathered and less usable by algae, potentially limiting carbon dioxide absorption as the West Antarctic Ice Sheet thins.
6 Articles
6 Articles
Unexpected climate feedback links Antarctic ice sheet with reduced carbon uptake
A study in Nature Geoscience reveals that changes in the West Antarctic Ice Sheet (WAIS) closely tracked marine algae growth in the Southern Ocean over previous glacial cycles, but not in the way scientists expected. The key factor is iron-rich sediments transported by icebergs from West Antarctica.
Melting Antarctic Ice Did the Opposite of What Scientists Expected
Scientists studying ancient ocean sediments discovered a surprising link between the shrinking of West Antarctica’s ice and the Southern Ocean’s ability to absorb carbon dioxide. A new study published today (February 2) in Nature Geoscience finds that shifts in the West Antarctic Ice Sheet (WAIS) closely followed changes in marine algae growth in the Southern [...]
News of the Day and the Hour Latest News of the day An international research published in Nature Geoscience suggests that the chemical composition of sediment alters the development of algae and natural balance An international team of scientists identified a new climate feedback in Western Antarctica that could significantly influence the ability of the Southern Ocean to absorb carbon.According to a study published in Nature Geoscience, the r…
Antarctic ice feedback limits Southern Ocean carbon sink
Berlin, Germany (SPX) Feb 03, 2026 A sediment core from the Pacific sector of the Southern Ocean has provided a research team led by geochemist Dr Torben Struve from the University of Oldenburg, Germany, with evidence of an unexpected climate feedback in Antarctica. The study, published in Nature Geoscience, links changes in the West Antarctic Ice Sheet to variations in marine algae growth over several glacial cycles, but in a wa
Surprising Climate Feedback Connects Antarctic Ice Sheet to Decline in
Recent findings published in Nature Geoscience have illuminated a previously unforeseen connection between the West Antarctic Ice Sheet (WAIS) dynamics and carbon uptake in the Southern Ocean, challenging established paradigms about iron fertilization and marine algae productivity. This groundbreaking study reveals that, contrary to prevailing assumptions, greater inputs of iron-rich sediments from icebergs do not necessarily enhance marine alga…
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