The groundwater resource of the Iullemeden-Taoudeni Tanezrouft Aquifer System shared by 7 countries (Algeria, Benin, Burkina Faso, Mali, Mauritania, Niger and Nigeria) is increasingly threatened in terms of quantity and quality. The GICRESAIT regional project "Integrated and concerted water resources management of the Iullemeden, Taoudeni/Tanezrouft and Niger River Aquifer Systems" (2010-2016) assessed the potential resources and ensured its monitoring and vulnerability to climate change. This work has highlighted the importance of the resource with no less than 7 high potential areas, and its low vulnerability to climate change. This should be part of the solution to the major challenges of groundwater mobilization in the countries concerned and help them achieve the main objectives of sustainable development.
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