Map depicting current extent of permafrost in Northern Hemisphere (light blue) and projected extent of permafrost in 2070 (dark blue) under RCP 4.5 scenario.

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

As the frozen ground warms much faster than expected, it’s reshaping the landscape—and releasing carbon gases that fuel global warming ... across the Arctic. As permafrost laced with buried ...

The vast frozen terrain of Arctic permafrost thawed several times in North America within the past 1 million years when the world's climate was not much warmer than today, researchers from the United ...

As the Arctic climate warms, its permafrost landscapes are rapidly melting, causing significant changes to the terrain. High-resolution aerial photography has been an ideal tool for analyzing ...