Swiss Study Shows Wars Can Alter Groundwater and Water Systems

A new Swiss academic study has revealed that armed conflicts can significantly alter underground water systems and groundwater dynamics, reshaping how water resources behave in war-affected regions.

Research conducted at the University of Neuchâtel shows that large-scale population displacement and abandoned agricultural activity can directly influence groundwater recharge patterns.

Doctoral researcher Saeed Mhanna observed unexpected changes in an underground water system in a Syrian river basin, using satellite-based InSAR technology to study areas that are otherwise inaccessible due to ongoing conflict.

The findings suggest that when populations are forced to leave farmland during war, the cessation of irrigation allows groundwater levels to partially recover. In some locations, the soil surface even rose by up to 4 cm per year due to changes in underground pressure.

The study highlights how the invisible nature of aquifers makes wartime water assessment extremely difficult, especially when field access is restricted. Satellite data and indirect measurement techniques were therefore combined to analyze changes in water storage and recharge.

Beyond Syria, the research also examined the impact of the Kakhovka dam collapse in Ukraine in 2023. The study found that the destruction of the dam drastically disrupted the regional hydrological system along the Dnieper River.

Researchers estimate that the volume of water lost to the Black Sea after the dam’s collapse was roughly equivalent to the capacity of Lake Geneva, though with a significant margin of uncertainty.

The study demonstrates that modern satellite monitoring can play a crucial role in identifying damaged water infrastructure, tracking groundwater depletion, and detecting unexpected water recovery in conflict zones.

Experts say these insights could help governments and aid organizations prioritize emergency repairs, protect critical water infrastructure such as wells and pipelines, and improve humanitarian response in war-affected regions.

The research highlights the growing importance of space-based environmental monitoring in understanding how human conflicts reshape natural water systems over time.