Le site de vulgarisation scientifique de l’Université de Liège. ULg, Université de Liège
permafrost

Soil that is permanently frozen and is therefore impermeable. Since its dynamics are linked to climatic variations, permafrost is studied within the framework of research on climate change. In some places, for instance Siberia, the permafrost is thawing and is releasing large amounts of greenhouse gases.

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