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Researchers try packing down snow to preserve permafrost in N.W.T.

Inuvik, Northwest Territories, Canada

A permafrost scientist in the N.W.T. is leading an experiment that compacts snow near the Inuvik-Tuktoyaktuk Highway to see if that will slow down permafrost thaw and protect buildings and roads built atop it.

CBC / Liny Lamberink

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