Snow and Ice

Arctic and Antarctic Sea Ice Approached Historic Lows
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Arctic and Antarctic Sea Ice Approached Historic Lows

Sea ice in the Arctic continued a decades-long downward trend in its minimum summer extent, while sea ice around Antarctica saw meager winter growth in 2024.

Published Oct 17, 2024

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Spring Snow in Lesotho
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Spring Snow in Lesotho

A late-season storm covered the mountainous country and nearby provinces of South Africa in a blanket of white.

Published Sep 29, 2024

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Keeping Tabs on North Cascades Glaciers
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Keeping Tabs on North Cascades Glaciers

Scientists use satellites in orbit and boots on the ice to monitor glacial changes on the flanks of Mount Baker and elsewhere in Washington state.

Published Sep 19, 2024

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A Winter Wanderer in the Weddell Sea
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A Winter Wanderer in the Weddell Sea

Under the cloak of darkness, Iceberg A-83 wiggled away from glue-like sea ice and drifted farther from the Brunt Ice Shelf—but not without sustaining some damage.

Published Sep 16, 2024

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Snow Cover
Global Maps

Snow Cover

Snow and ice influence climate by reflecting sunlight back into space. When it melts, snow is a source of water for drinking and vegetation; too much snowmelt can lead to floods. These maps show average snow cover by month.

Mar 2000 — Aug 2024

Snow and Ice