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Permafrost melting in arctic causes big problems
Permafrost melting in arctic causes big problems

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    Melting permafrost is a big problem

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Melting permafrost is a big problem

Melting permafrost in the Arctic would create a gassy, and soggy, situation. CNN's Chad Myers explains.

Melting permafrost is a big problem

Melting permafrost in the Arctic would create a gassy, and soggy, situation. CNN's Chad Myers explains.