"The most climate-stressed regions all contained permafrost, which is vulnerable to thaw as temperatures rise," researcher Sue Natali said.

Some groups in Alaska say they will continue to refer to the country's highest mountain as Denali, despite an executive order changing the name to Mount McKinley.

Canada’s immense boreal ... Alaska to Newfoundland and Labrador, their numbers have dropped significantly over the years. Across the country, caribou are threatened by the break up of intact ...

An analysis of the rapidly warming Arctic-boreal ... central Siberia. Approximately 99% of the Eurasian tundra region experienced significant warming, compared to 72% of Eurasian boreal forests.

Map of areas that experienced ecosystem climate stress in the Arctic-boreal region between ... including Alaska’s Yukon-Kuskokwim Delta and central Canada. These increases in water on the ...