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Tag archives for sea ice

The First Look at Arctic Life on Ice Through the Eyes of a Polar Bear

Seals swim in a cold blue abyss. White paws paddle through the icy water, giving chase. Finally, morsels of frozen, skinned seal float into view as the hunter gnaws down on her meal.

It’s the first-ever glimpse of life on Arctic sea ice through the eyes of a polar bear.

Geography in the News: Polar Bears

By Neal Lineback and Mandy Lineback Gritzner, Geography in the NewsTM Polar Bears on the Run The world’s polar bears are becoming more and more threatened, not from predation, as they have no natural predators except humans, but from global warming. A book entitled On Thin Ice: The Changing World of the Polar Bear by…

Exploring the Natural History of Polar Bears

Icon of the Arctic, the polar bear thrives in the remote Arctic landscape of ice and snow. World-renowned polar bear scientist Ian Stirling offers his thoughts on the state of polar bears in the wild, the threats they face today, and insights from his recent book, Polar Bears: A Natural History of a Threatened Species.

Geography in the News: Arctic Dangers to Oil Platforms

By Neal Lineback and Mandy Lineback Gritzner, Appalachian State University  Shell Oil’s Grounded Platform Confirms Worries About Arctic Oil The Arctic Ocean is a formidable foe to ships, even in the summer. Nonetheless, oil exploration continues despite the dangerous conditions created by wind and ice floes, particularly in the winter. Concerns by Alaskans and Canadians…

How Climate Change is Causing Antarctic Sea-ice to Expand

As rising temperatures continue to shrink the extent of Arctic summer sea-ice, there has been much speculation as to why the ice cover on the opposite side of the planet has expanded slightly in recent years. Now British scientists have found the explanation–and it’s related to climate change. Using data gathered by U.S. military satellite-tracking…

Interview with Polar Bears International Chief Scientist Steven Amstrup

Steven C. Amstrup, a former chairman of the IUCN Polar Bear Specialist Group and a world authority on polar bears, has joined the conservation group Polar Bears International as senior scientist. A long time scientific advisor to PBI, Amstrup was previously wildlife biologist with the United States Geological Surveys’s Alaska Science Center in Anchorage. He…

Arctic Sea Ice Likely at Lowest Volume on Record, Researchers Say

Illustration courtesy National Snow and Ice Data Center The giant ice cube bobbing on the top of the planet just got smaller. Warming sea and air probably caused the Arctic sea ice to melt to its lowest volume on record this summer, the University of Colorado at Boulder’s National Snow and Ice Data Center reported…