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The Canadian Arctic tundra is a biogeographic designation for Northern Canada's terrain generally lying north of the tree line or boreal forest, [2] [3] [4] that corresponds with the Scandinavian Alpine tundra to the east and the Siberian Arctic tundra to the west inside the circumpolar tundra belt of the Northern Hemisphere.
But warming air temperatures in the Arctic are breaking down permafrost across the tundra, in some cases, severely. The Arctic report, for example, showed Alaskan permafrost temperatures in 2024 ...
The Arctic is rapidly changing from the climate crisis, with no "new normal," scientists warn. Wildfires and permafrost thaw are making the tundra emit more carbon than it absorbs. From beaver ...
The Arctic tundra has become a source of emissions, rather than a carbon sink. ... for the effects of climate change, the Arctic is heating up far faster than places at lower altitudes — two to ...
Animal species that are endangered in the tundra include the Arctic fox, caribou, and polar bears. These animals have been endangered due to overhunting, an infestation of disease, loss of diet and habitat due to climate change, and human destructive activities, such as searches for natural gas and oil, mining, and road building. [10]
Retrogressive thaw slumps threaten Canada's infrastructure and contributes to mercury contamination in the water. [48] in the western Canadian Arctic, Inuvialuit residents of the hamlet of Sachs Harbour, Banks Island reported seeing an increase in the number of slumps, which had affected "travel for traditional hunting and fishing activities ...
The Arctic tundra, a critical “carbon sink” for thousands of years, ... Research published over the summer found that forests and other land ecosystems failed to curb climate change last year.
A major reason why research in the Arctic is valuable for the study of climate change is that the effects of climate change will be felt more quickly and more drastically at higher latitudes of the world as above average temperatures are predicted for Northwest Canada and Alaska. [10] [11]