A decade's worth of sampling has revealed the presence of algae-related toxins in marine mammals in the Arctic Ocean, a new study finds -- the farthest north these toxins, associated with warmer waters, have ever been found.

Yereth Rosen
Here are some of the stories from around the Arctic that we've been following this week.Alaska Dispatch News
President Obama's budget request to Congress includes $400 million "to cover the unique circumstances confronting vulnerable Alaskan communities," including money to pay for village relocation.Chris Mooney | The Washington Post
A senior Russian government official on Tuesday formally presented to the United Nations his country’s claim to Arctic Ocean seabed, including an area under the North Pole.Andrew E. Kramer | The New York Times
Beaufort Sea polar bears equipped in 2014 and 2015 with Fitbit-like devices and neck cameras revealed their daily routines to scientists studying their food needs.Yereth Rosen
With "I am Inuit," a follow-up to his "I am Alaskan" series, photographer Brian Adams will spend a year visiting some 20 Alaska villages to deliver a portrait of the people and places of rural Alaska. Tara Young
2015 saw increased attention paid to the Arctic from the state, the nation and the world. How does Gov. Bill Walker plan to respond to the rapid changes in the region?Shady Grove Oliver | The Arctic Sounder
A single Alaska state senator spent $39,900 on travel in 2015, including two trips overseas — a $7,000 increase from the previous year, even as the state faces an escalating budget crisis.Nathaniel Herz
Stronger winds and thinner ice are forcing Alaska polar bears to work harder to remain in Alaska, according to scientists who have studied increased movements of both sea ice and bears.Ned Rozell
Arctic sea ice was less extensive last month than in any January since satellite records begin in 1979 -- the result of unusual weather patterns in the region.Yereth Rosen