Action anthropique ; Arctique ; Changement global ; Effet de serre ; Forêt ; Glaciaire ; Ozone ; Pollution ; Stratosphère ; Toundra ; Variation climatique ; Zone froide
Arctic Region ; Climatic variation ; Cold area ; Forest ; Glacial features ; Global change ; Greenhouse effect ; Human impact ; Ozone ; Pollution ; Stratosphere ; Tundra
topical environmental issues of public and scientific concern with the factual world. The A. studies the climatic trends and variability, snow, ice and periglacial activity, stratospheric ozone, plant cover-tundra and the boreal forest, pollution of air