Which effect accelerates solifluction on Arctic slopes following permafrost thaw due to rising temperatures?

💡 Explanation

As permafrost thaws, trapped meltwater cannot drain readily, leading to elevated pore water pressure because permeability contrasts exist between thawed and frozen layers, effectively weakening the soil's shear strength and accelerating downslope flow. Therefore, increased pore water pressure accelerates solifluction rather than other processes such as ice crystal growth, vegetation stabilization, or water drainage limits.

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