President Obama’s headed to Alaska today, but it’s not the typical politicized meet-and-greet. From talking to residents who are forced to flee their homes due to rising sea levels, to learning the political repercussions of melting polar ice, he’s got one of the most science-focused itineraries ever embarked upon by…
This natural-color image of sea ice off East Antarctica's Princess Astrid Coast was acquired April 5 by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite. Via NASA, here's a bit more about what's depicted in this striking photograph:
Not all ice is created equal: this view of the Amundsen Gulf has open ocean, older thick ice, young thin ice, fresh snow and even broken brash ice adrift at sea.
Scientists use a range of techniques—from satellite observations to drilling holes—to measure sea ice thickness. Usually, such efforts look down at the sea floor. But, by equipping an underwater drone with upward-looking sonar, researchers were able to create the first high-resolution 3D maps of Antarctic sea ice.
Newly formed sea ice in the Bellingshausen Sea next to an ice berg on Nov. 5, 2014. NASA's Operation IceBridge took this aerial photograph of a calving front of the Western Antarctic ice sheet on a science flight out of Punta Arenas, Chile. The flight plan was designed to collect data on changes in ice elevation along…
When the the 10th edition of the National Geographic world atlas is released this fall, it will look markedly different from previous versions. That field of endless white usually covering the very north of the planet will be dramatically reduced to reflect the real-life shrinkage of the Arctic ice sheet.
This emaciated polar bear, a 16 year-old male, was recently found over 150 miles away from its normal range. Experts believe that a lack of sea ice forced the bear into unknown territory as it desperately searched for food — a quest that came to a grim conclusion.
Sea ice levels shrink every summer, but this year has been different. Yesterday brought some big news: the extent of Arctic sea ice has officially reached a record low. What's more, it's done so weeks earlier than ever before — and it's not done shrinking yet.
Harp seals use sea ice as their chilly love nests, and after the lovin' leads to babies, parents nurse for just 12 days before the pups are on their own. But their ice dens have been melting beneath the baby seals, and when that happens, their chances of survival are slim.