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ARC_SeaIceAge_1985w11_2019w11_620.png

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Arctic sea ice age overlaid on maps for 1985 and 2019.

The proportion of old, thick ice in the Arctic's winter maximum ice pack has dropped from more than a third in the mid-1980s to barely just 1 percent today. See more visual highlights: https://www.climate.gov/news-features/understanding-climate/2019-arctic-report-card-visual-highlights