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

Common. breeding: Found in the subarctic forests and tundra across northern Canada and much of Alaska. The rostrata breeds in tundra scrub, where it overlaps with the hoary. Winter: forms large ...

The declining Western Arctic herd and the thriving Porcupine herd use habitat with differing levels of climate change-related shrub growth.

The contrast between the declining Western Arctic herd and the thriving Porcupine herd is correlated to different levels of ...

Learn about hotspots in tundras and boreal forests that are releasing higher level of carbon dioxide, altering the carbon balance in the world's coldest regions.

The most substantial land warming between 1997–2020 occurred in the far eastern Siberian tundra and ... including Alaska's Yukon-Kuskokwim Delta and central Canada. These increases in water ...