Permafrost

Permafrost is frozen ground - a mixture of soil, rock, sand, and ice - that remains at or below 0°C for at least two consecutive years. Permafrost covers about a quarter of the landmass in the Northern Hemisphere, the majority of which can be found in northern Russia, Canada, Alaska, Iceland, and Scandinavia. As long as it stays frozen, it’s no threat to the climate.

Permafrost is the frozen mix of soil, ice, and rocks that occupies nearly a quarter of the land in the northern hemisphere. It contains vast amounts of animal and plant remains along with bacteria and other microorganisms. All it has been frozen – stuck in time – for millennia.