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As climate changes, how do Earth's frozen areas affect our planet and impact society?
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![Landscape photo of thufur in Iceland. Landscape photo of thufur in Iceland.](/sites/default/files/styles/content_wwo_desktop/public/images/thufur-iceland-Reir-permafrost.jpg.webp?itok=GG9v4W2X)
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Recent analysis of model results by NCAR and NSIDC scientists suggests that global warming may decimate the top 10 feet (3 meters) or more of perennially frozen ground across the Northern Hemisphere, potentially altering ecosystems as well as dama
![This grayscale image of the East Antarctic Ice Sheet shows the Recovery Ice Stream flowing out of the rugged Shackleton Range Mountains and merging into Filchner Ice Shelf. The image is from the Mosaic of Antarctica, a map of digital images of the continent based on observations collected by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra and Aqua satellites. Credit—National Snow and Ice Data Center, MODIS Mosaic of Antarctica. High-resolution image This grayscale image of the East Antarctic Ice Sheet shows the Recovery Ice Stream flowing out of the rugged Shackleton Range Mountains and merging into Filchner Ice Shelf. The image is from the Mosaic of Antarctica, a map of digital images of the continent based on observations collected by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra and Aqua satellites. Credit—National Snow and Ice Data Center, MODIS Mosaic of Antarctica. High-resolution image](/sites/default/files/styles/content_wwo_desktop/public/images/recovery_moa_label_5.png.webp?itok=a7_RNOLM)
Spotlight
NSIDC has just released a new, high-resolution image mosaic of the Antarctic continent and surrounding islands. The map, called the MODIS Mosaic of Antarctica (MOA), is the best representation to date of the Antarctic continent surface.
![Arctic sea ice extent maps of maximum and minimum Arctic sea ice extent maps of maximum and minimum](/sites/default/files/styles/content_wwo_desktop/public/images/Arctic%20extent-decline-all-seasons.jpg.webp?itok=mxwvAKdQ)
Spotlight
Besides a strong summer decline in ice concentration, the Arctic now shows a winter decline as well.
![Decline_chart_1 Decline_chart_1](/sites/default/files/styles/content_wwo_desktop/public/images/Decline_chart_1.png.webp?itok=Q_RgE9HV)
Spotlight
On 16 November, the US Senate Committee on Commerce, Science and Transportation held a hearing about Global Climate Change to hear testimony on the assessment recently released by the Arctic Council and the International Arctic Sciences Committee.