Tag: sea ice

June 17, 2022

Isolated polar bear population endures, even when sea ice is gone

In a remote corner of southeastern Greenland, researchers discovered an isolated, genetically distinct polar bear population that survives in a landscape without sea ice for most of the year—the sort...

March 28, 2022

Arctic sea ice is 10th lowest on record

Arctic sea ice fell to its 10th lowest on record last winter, according to NASA’s National Snow and Ice Data Center. The sea ice peaked at 5.75 million square miles...

March 9, 2022

Polar bear ranges increase as sea ice shrinks

As climate change causes sea ice to recede in the Arctic, polar bears must decide whether to travel farther for their ringed seal prey or swim to land in search...

November 3, 2021

TWS2021: Indigenous hunters teach researchers about seals

Conversations that researchers have had with indigenous hunters in Utqiaġvik, Alaska, have revealed information about where seal species are showing up and how climate change may impact them. By including...

September 17, 2021

Watch: AI predicts long-term sea ice changes

Traditional models predict Arctic sea ice levels well over a few weeks, but long-range forecasting is a challenge. But researchers say a new tool using artificial intelligence may be far...

September 10, 2021

Climate change changes Indigenous seal hunting

A changing climate resulting in reduced sea ice coverage is causing Indigenous seal hunters who rely on the marine mammals for subsistence to change their methods. As the ice continues...

July 6, 2018

Study finds polar bears aren’t so wasteful when walking

With declines in sea ice that polar bears (Ursus maritimus) in the arctic require to subsist, researchers have seen accounts of bears traveling farther north. But what do these longer...

May 15, 2018

As climate warms, polar bears take advantage of eider eggs

Polar bears (Ursus maritimus) in the Canadian arctic are taking advantage of a unique food source — common eider (Somateria mollissima) eggs — according to new research. In a study...

June 13, 2016

A polar bear’s eye view

With a warming climate and less sea ice during the summer, researchers are looking at polar bears’ behaviors during this warmer time of year as well as how they spend...

Male Polar Bear Near Kaktovik Alaska
April 1, 2015

Polar bears Won’t Thrive on Land Food as Ice Melts

Polar bear populations whose main diet sources are disappearing with melting icebergs may not be able to subsist long on terrestrial food sources. “Although some polar bears (Ursus maritimus) may...