Science Daily iconScience DailySep 23, 2026

The Arctic sea ice melt season grew longer for decades, but something strange happened around 2010

The Arctic sea ice melt season is roughly 40 days longer than it was in 1979, yet its rapid expansion unexpectedly leveled off around 2010. Scientists say changing clouds and increasingly thin ice may explain the pause, but continued Arctic warming could eventually trigger another period of rapid change.

The Arctic sea ice melt season grew longer for decades, but something strange happened around 2010

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The Arctic sea ice melt season is roughly 40 days longer than it was in 1979, yet its rapid expansion unexpectedly leveled off around 2010.

Scientists say changing clouds and increasingly thin ice may explain the pause, but continued Arctic warming could eventually trigger another period of rapid change.

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The Arctic sea ice melt season is roughly 40 days longer than it was in 1979, yet its rapid expansion unexpectedly leveled off around 2010. Scientists say changing clouds and increasingly thin ice may explain the pause, but continued Arctic warming could eventually trigger another period of rapid change.

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