In western Alaska, several long-term environmental changes have amplified its recent storms: warmer ocean waters, declining ...

The Bootstrap Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS, Version 4 dataset, available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), ...

On September 12, Arctic sea ice likely reached its annual minimum extent of 4.60 million square kilometers (1.78 million square miles). The 2026 minimum shares the tenth lowest spot in the nearly ...

Greetings, readers! Our monthly sea ice analyses are returning just in time for the September equinox. In the Arctic, the sea ice extent this summer was tracking 2012 levels until August. While ...

With the generous support of the Climate Science and Communication Fund from Surge Climate Talent, NSIDC’s Ice Sheets and Sea Ice News and Analysis (ISSINA) is able to start up monthly science ...

The Arctic Report Card, supported by the National Oceanic and Atmospheric Administration (NOAA), is an annual, peer-reviewed snapshot of environmental conditions north of 60°N. Topics range from air ...

Arctic sea ice has likely reached its maximum extent for the year, at 14.29 million square kilometers (5.52 million square miles) on March 15, according to scientists at the National Snow and Ice Data ...

Antarctic sea ice has likely reached its minimum extent for the year, at 2.58 million square kilometers (996,000 square miles) on February 26, 2026, according to scientists at the National Snow and ...

Most of the planet’s seasonal snow cover occurs in the Northern Hemisphere, although isolated areas of snow cover exist south of Earth’s equator and outside of Antarctica. Since continuous satellite ...

A snow drought has gripped the US West, according to report from January 8, 2025, by NIDIS. Snow-covered area in January across the western United States was 66 percent below average, at 401,000 ...

Beginning October 15, 2025, NSIDC’s Sea Ice Today services will be reduced because of non-renewed funding. This means no new monthly and mid-month analysis posts ...

On September 17, Antarctic sea ice likely reached its annual maximum extent of 17.81 million square kilometers (6.88 million square miles). The 2025 maximum is the third lowest in the 47-year ...