Sea ice

The recent snowstorms in the northeastern U.S. and a similar blizzard last year might make some doubt the climate is changing. The short answer is: no, and in fact some of the people who study climate predicted wetter winters - and more snow, at least for a while.

There’s hope for polar bears, but it depends on human behavior.

More than 187,000 square miles of on-shore barrier islands in Alaska have been designated a 'critical habitat' for polar bears. The move welcomed by environmentalists is aimed at tackling the threat of extinction of the species.

The Arctic is thawing fast because of global warming but a big Cold Rush for offshore oil and gas looks unlikely because of icebergs and high costs, a new book says.

Global warming will leave the Arctic Ocean ice-free during the summer within 20 years, raising sea levels and harming wildlife such as seals and polar bears, a leading British polar scientist said on Thursday.

United Nations Secretary-General Ban Ki-moon called on world leaders on Monday to take urgent action to combat climate change for the sake of the future of humanity.

Arctic sea ice, a key component of Earth's natural thermostat, has thinned sharply in recent years with the northern polar ice cap shrinking steadily in surface area, government scientists said on Monday.

An ice bridge which had apparently held a vast Antarctic ice shelf in place during recorded history shattered on Saturday and could herald a wider collapse linked to global warming, a leading scientist said.

The dream of a shorter shipping route through melting Arctic ice is, for now, too difficult, too dangerous and totally impractical.