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Describes polar climates such as the polar and alpine tundras.
It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).
Learn about permafrost: where it is, what it is, and the global consequences if it melts. Melting permafrost is an example of a positive feedback mechanism in the climate system.
It is an educational c ...
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