Annual Sea Ice Extremes

Every year, the frozen seawater in the Arctic Ocean and around Antarctica reaches a maximum and minimum extent.
Arctic Sea Ice Tied for 10th-Lowest on Record
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Arctic Sea Ice Tied for 10th-Lowest on Record

The summer 2022 extent of Arctic sea ice continued the downward trend under way since the 1980s.

Published Sep 22, 2022

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Arctic Sea Ice 12th-Lowest on Record
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Arctic Sea Ice 12th-Lowest on Record

Sea ice covered more area this summer compared to recent years, but it was also much thinner.

Published Sep 22, 2021

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Sluggish Start for Arctic Sea Ice Freeze-Up
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Sluggish Start for Arctic Sea Ice Freeze-Up

Early ice retreat amid warm Arctic air temperatures set the stage for the slow refreeze in 2020.

Published Dec 8, 2020

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Arctic Sea Ice Reaches Second-Lowest Extent
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Arctic Sea Ice Reaches Second-Lowest Extent

The Arctic sea ice extent continues its long-term downward trend.

Published Sep 22, 2020

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Arctic Lows
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Arctic Lows

Record-low sea ice in July 2020 could be further depleted by a low-pressure system that developed over the Arctic Ocean.

Published Aug 5, 2020

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Sea Ice Below Normal Despite a Seasonal Bump
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Sea Ice Below Normal Despite a Seasonal Bump

Slight recoveries in the extent of sea ice at both poles were not enough to return to long-term normal levels.

Published Mar 24, 2020

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2019 Arctic Sea Ice Minimum Is Second Lowest
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2019 Arctic Sea Ice Minimum Is Second Lowest

The long-term trend for Arctic sea ice extent has been definitively downward.

Published Sep 23, 2019

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Arctic Sea Ice Reaches 2018 Minimum
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Arctic Sea Ice Reaches 2018 Minimum

The ice cap tied for the sixth lowest extent on record, continuing a long-term decline.

Published Sep 28, 2018

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