Ground shifting on Banks Island

Landslides caused by permafrost thaw are much more common than they were 30 years ago

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There was a 60-fold increase in landslides caused by thawing permafrost on Banks Island between 1984 and 2015, according to a research article published on April 2. The amount of active thaw slumping—the technical term for these landslides—right now is only about 0.1 percent of the total island. While the island can likely accommodate greater...