Researchers drill a permafrost core in Alaska

Researchers discover massive amounts of mercury in Arctic permafrost, which could be released as permafrost thaws.

permafrost in Alaska

Permafrost, also known as frozen ground, is soil that remains at or below 0°C (32°F) for at least two years. When it thaws, permafrost contributes to global warming by releasing greenhouse gases...

Subscribe to RSS - Permafrost