Which failure type is accelerated as permafrost thaws?

💡 Explanation

Thermokarst lake formation accelerates because permafrost degradation causes ground subsidence via the collapse of previously ice-rich soil; this positive feedback is thermal erosion rather than altered glacial deposits that require different processes.

• Which effect promotes plankton blooms when coastal upwelling transports deep water towards the surface?
• Which mechanism limits development suitability within a floodplain filled with uncompacted alluvial sediments during seismic activity?
• Which topographical outcome occurs when seasonal flooding deposits sediment atop an alluvial fan?
• Which risk increases along coastal barrier islands when inlets undergo rapid lateral migration?
• Which process results after deglaciation causes isostatic rebound in a fjord landscape?
• Which outcome follows reduced wave refraction around stacks?