Science

Shared aquifers, border hotspots: Cooperation should follow where groundwater is pumped, scientists say

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 26/10/2026, 20:25:25 UTC.

Briefings

UNU-INWEH research indicates groundwater depletion and irrigation concentrate near international borders, where pumping on one side risks affecting users on the other. This finding suggests cooperation should follow where groundwater is pumped, highlighting a critical vulnerability in shared aquifers.

Key points

• Groundwater depletion and groundwater-dependent irrigation tend to concentrate close to international borders within aquifers shared by two or more countries.
• Pumping on one side of a shared aquifer is more likely to affect users on the other side, creating a risk of cross-border impact.

Context

Groundwater depletion and groundwater-dependent irrigation tend to concentrate close to international borders within aquifers shared by two or more countries, where pumping on one side is more likely to affect users on the other, according to a publication by the United Nations University Institute for Water, Environment and Health.

Limitations

Evidence is limited to a single publication by UNU-INWEH; specific aquifer names, country locations, or precise depletion rates are not provided.

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