Guillaume Favreau

Hydrologist, French Institute of Research for Development (IRD)

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Last updated Aug 5, 2026

Stories

Groundwater rises across the African Sahel after decades of drought

Built World

As of August 2026: Studied the rising water table in southwest Niger

For decades the Sahel meant one thing: drought and famine. Now wells that once ran dry are filling, and in places the water table has climbed more than 13 feet.

Updated Aug 5