Surrounding or occurring around the boreal (northern forest) regions; relating to areas encircling the taiga biome.
Combining circum- (around) with boreal (relating to the north or northern forests, from Latin Boreas, the north wind god). A biogeographical term.
Circumboreal forests circle the entire Northern Hemisphere in an unbroken band—permafrost thaw in these regions is releasing methane that's thousands of years old, potentially accelerating global warming.
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