Walrus carcasses were found last week on a northwest Alaska beach, but the U.S. Fish and Wildlife Service says the deaths appear to be natural.
An unusual observation by Mars Express shows a sweeping view over the planet's south polar ice cap and across its ancient, cratered highlands.
When it comes to coping with climate change in the Arctic region, which is warming at three times the global average, some animals are more equal than others.
Sea level rise is a natural consequence of the warming of our planet.
Sea levels are rising around the world, and the latest satellite data suggests that three feet (one meter) or more is unavoidable in the next 100-200 years, NASA scientists said Wednesday.
Polar bears are unlikely to physiologically compensate for extended food deprivation associated with the ongoing loss of sea ice, according to one-of-its-kind research conducted by University of Wyoming scientists and others, ...
An unmanned NASA spacecraft will reveal details of Pluto's surface for the first time Tuesday, as it speeds by the dwarf planet after a near decade-long journey.
A new review analyzing three decades of research on the historic effects of melting polar ice sheets found that global sea levels have risen at least six meters, or about 20 feet, above present levels on multiple occasions ...
Polar bears are at risk of dying off if humans don't reverse the trend of global warming, a blunt U.S. government report filed Thursday said.
In the late spring and summer, unusual clouds form high in the atmosphere above the polar regions of the world. As the lower atmosphere warms, the upper atmosphere gets coooler, and ice crystals form on meteor dust and other ...