Study Finds the Arctic Could Lose Far More Sea Ice Than Scientists Previously Predicted - SciTechDaily
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Ancient evidence from a warmer Arctic is challenging scientists’ predictions about the region’s future sea ice. Credit: Sarah DasClues from a warmer Arctic 6,000 years ago suggest the region could lose a million square kilometers more winter sea ice than scientists previously expected. The loss of Arctic sea ice has been linked to colder winters and heavier snowfall in the UK, the rest of northern Europe, and North America. The ice regulates how much heat and moisture the ocean releases into the atmosphere, so changes in its cover can influence weather far beyond the polar region. Climate models disagree most about how much ice will cover the Arctic in winter, making its future particularly difficult to predict. Using evidence from a warmer Arctic 6,000 years ago, researchers have now revised those projections downward by about one million square kilometers, or roughly 386,000 square miles. The findings, published in Nature Geoscience, come after the Arctic recorded its lowest maximum sea ice extent since modern measurements began in March 2025, a record tied again this year.
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