Action anthropique ; Arctique ; Bilan hydrologique ; Canada ; Changement global ; Effet de serre ; Inondation ; Permafrost ; Périglaciaire ; Thermokarst ; Variation climatique ; Zone froide
Arctic Ocean;Arctic Region ; Canada ; Climatic variation ; Cold area ; Flood ; Global change ; Greenhouse effect ; Human impact ; Periglacial features ; Permafrost ; Thermokarst ; Water balance
Human-induced climatic warming will have major impacts on permafrost, which presently underlies half of Canada's land mass. The extent of permafrost will diminish, accompanied by modifications of the land surface through thermokarst or mass wasting