Trends in CO2 exchange in a high Arctic tundra

Trends in CO<sub>2</sub> exchange in a high Arctic tundra

Permafrost is a solid layer of frozen rock and soil which is mainly found in heart of Arctic, where the average annual temperature lies below ~23°F (-5° C). The Arctic tundra, with underlying permafrost, is stark and treeless all year around but in summer, the topmost layer of the permafrost melts, leaving behind soggy ground […]

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