Polar sea ice is ever-changing. It shrinks, expands, moves, breaks apart, reforms in response to changing seasons, and rapid climate change. It is far from a homogenous layer of frozen water on ...

The claim: NASA 'admits' polar ice has increased since 1979 and denies significant warming over the last 18 years. NASA researchers have documented the loss of trillions of tons of ice from Earth ...

Polar bears walk across sea ice for miles, searching for cracks and holes in the surface through which they can hunt their ringed seal prey. But a new study has found that, in some areas, the ice ...

Sea ice extent is at record, and near record, lows for this time of year in both polar regions, leaving the planet increasingly vulnerable to the cascading effects of global warming. This March ...

Polar bears don’t have to worry about skipping a wash day. The sebum, or natural oil, on the mammals’ fur helps them survive the harsh Arctic weather by making it hard for ice to stick to them ...

Polar bears have a hidden-in-a-plain-sight superpower that anyone who has watched a wildlife documentary could have spotted: ice doesn’t stick to their fur. This has long been known to ...

Polar ice is like an invisible hand that has sculpted our world and will shape our future. For millennia, our species has lived with land, coastlines, oceanic islands and sea levels defined by the ...

“As sea ice decreases at a rate of about 4.6 percent a decade, some polar bears at the southern edges of the species’ range are spending five to six months on land, with very few seals to eat.

For example, the structure of Gentoo penguin feathers repels ice, all without the fatty grease that polar bears use. [ Related: Polar bears adapted to the Arctic just 70,000 years ago . Grease as ...

Earth’s major climate goal is too warm for the polar ice sheets, study says. If Earth stays at its current levels of warming — below policymakers’ goal of 1.5 degrees Celsius — polar ice ...

The polar bears pass through Churchill, Manitoba, hoping to catch a ride out of the tiny town on Hudson Bay's sea ice. After a summer of fasting on land, the bears need to get back to their frozen ...

A polar bear near Kaktovik, Alaska. New research reveals how polar bears keep ice off their fur. Alan Wilson via Wikimedia Commons under CC BY-SA 3.0. Polar bears don’t have to worry about ...