Which process triggers widespread lacustrine landslides when glacial meltwater rapidly fills a proglacial lake?

💡 Explanation

When meltwater fills a proglacial lake, permafrost thaw occurs because the increased water volume and temperature destabilize the frozen ground around the lake, leading to landslides. Therefore reduced slope stability causes widespread landslides, rather than isostatic rebound, seismic activity, or eutrophication, which require significantly different conditions.

• Which ecological outcome results when coastal upwelling is disrupted by increased surface water temperatures?
• Which risk increases when a large earthquake ruptures across a natural levee along a major river?
• Which localized outcome commonly occurs due to coastal upwelling?
• Which mechanism causes a positive feedback effect on glacial melting in high-latitude regions?
• Which risk rises significantly when valley-confined lava flows develop levees?
• Which outcome occurs when increased tephra plume static?