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LSJI Hand-held Disinfection Spray Small Disinfectant Container S


LSJI Hand-held Disinfection Spray Small Disinfectant Container S


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LSJI Hand-held Disinfection Spray Small Disinfectant Container S

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Ice Shelves


Soil Moisture


Frozen Ground

Advancing knowledge of Earth's frozen regions

NSIDC manages and distributes scientific data, creates tools for data access, supports data users, performs scientific research, and educates the public about the cryosphere.

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Scientific analysis of Arctic sea ice conditions plus daily images


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NASA Earth science data on snow, ice, cryosphere, and climate

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Facts, photos and educational resources about Earth's frozen regions

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8 November 2021

Mountain and polar groups at the twenty-sixth United Nations Climate Change Conference of the Parties (COP26) are calling for more consideration of the dire global impacts that will result should governments not take greater action as the climate talks in Glasgow begin their second and final week.

22 September 2021

Arctic sea ice has likely reached its minimum extent for the year, at 4.72 million square kilometers (1.82 million square miles) on September 16, 2021, according to scientists at the National Snow and Ice Data Center (NSIDC) at the University of Colorado Boulder. The 2021 minimum is the twelfth lowest in the nearly 43-year satellite record. The last 15 years are the lowest 15 sea ice extents in the satellite record. 

14 September 2021

Each September, the National Snow and Ice Data Center (NSIDC) at the University of Colorado Boulder informs the public of the annual Arctic sea ice minimum extent, an indicator of how climate change is affecting the Arctic, the fastest-warming region of the globe.

Scientists at Northern Arizona University, Arizona State University, the Arizona Geological Survey at the University of Arizona, and the National Snow and Ice Data Center at the University of Colorado Boulder have been awarded almost $2 million from the National Science Foundation (NSF) to develop a virtual reality teaching tool called Polar Explorer.

The National Snow and Ice Data Center (NSIDC) announced this week their participation in the 50x30 Coalition, a group of governments and cryosphere and emissions research institutions endorsing the need to reduce greenhouse gas emissions 50 percent by 2030. The Coalition’s founding members endorse the scientific consensus that failure to reach this milestone will result in temperature “overshoot,” in which emissions remain too high to hold Earth within 1.5 degrees Celsius of pre-industrial levels, leading to major and irreversible damages to the environment. Damage may be especially harmful for highly temperature-sensitive frozen components of the Earth system, with impacts ranging from sea level rise to infrastructure damage to food insecurity.


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The Latest on Snow and Ice

9 November 2021

Daily melt extent mapping for the Antarctic Ice Sheet will be restarting soon, while... read more

2 November 2021

The sea ice extent has been quickly growing, and by the end of October, ice covered most of the ... read more

5 October 2021

The summer melt season has come to a modest end. The summer of 2021 was relatively cool compared... read more

22 September 2021

On September 16, Arctic sea ice likely reached its annual minimum extent of 4.72 million square... read more

16 September 2021

The Arctic sea ice minimum extent is imminent. After a cool and stormy summer, this year’s... read more