Climate change is increasingly causing structural damage to residential properties through a phenomenon known as soil shrinkage and swelling. In regions with high clay content, prolonged droughts cause the earth to contract, while heavy rains lead it to expand, resulting in significant cracks in walls and foundations. This geological instability, exacerbated by extreme weather patterns, poses a financial and logistical challenge for homeowners and insurance systems as more buildings become vulnerable to shifts in the terrain.
- The “shrink-swell” phenomenon occurs when clay-rich soils dehydrate during droughts and expand during periods of heavy rainfall.
- This soil movement causes foundations to shift, leading to deep cracks in the walls and floors of houses.
- The frequency and severity of this damage have risen due to more intense and frequent heatwaves and droughts.
- Millions of homes, particularly in countries like France, are located in high-risk zones where the soil composition is predominantly clay.
- Homeowners often face significant financial burdens, as repairs can be expensive and insurance coverage frequently depends on official natural disaster declarations.
- The rising cost of claims related to soil movement is putting increased pressure on national insurance schemes and government disaster funds.
France 24 is an international television network and news website owned by the French state.
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