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

Ross's gull — a bird of a rare species generally found only in Siberia, Greenland, Canada and northern Alaska — has died in ...

While some hotspots in Siberia and the Northwest Territories of Canada grew drier, the researchers detected increased surface water and flooding in parts of North America, including Alaska's Yukon ...