Which hazard dramatically increases following permafrost thaw underneath Arctic infrastructure corridors?

💡 Explanation

When permafrost thaws, subsurface ice melts and supersaturates the existing soils because the previously frozen water is released and cannot drain, increasing pore water pressure dramatically, leading to loss of soil strength and triggering liquefaction during seismic events. Therefore liquefaction poses increased geologic hazards, rather than methane release, seismic activity, or dust loading which occur by other seperate mechanisms.

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