Why can thermokarst collapse be dangerous in construction and farming areas?

Thermokarst collapse poses significant risks to construction and farming because it creates an unstable, uneven ground surface that can compromise the integrity of infrastructure and land use.12

In construction, the primary danger stems from the melting of ground ice, which leads to the subsidence of the surface. Because thermokarst features—such as tunnels and caverns—can exist as undetected voids for years before the roof gives way, they can cause sudden, catastrophic structural failure for buildings, roads, railroads, and other engineering projects. Furthermore, the thawing process reduces the bearing strength of the soil, making it difficult to maintain stable foundations.134

In agricultural areas, thermokarst activity disrupts the land surface by forming mounds, sinkholes, and depressions that can fill with water, rendering the soil difficult to manage or cultivate. Additionally, the introduction of agriculture itself can disturb the delicate thermal equilibrium of the permafrost, accelerating the thawing process and leading to further land degradation. In both sectors, these processes are often exacerbated by human activity, which can trigger localized thawing and subsequent ground collapse.124