
THINK
TANK
Meeting the challenges of irrigated agriculture together
COSTEA is a think tank dedicated to water for food, facing the challenges of climate change. It is managed by Eau, Agriculture et Territoires (EAT).
It brings together an international community of experts, scientists, agricultural water managers, project owners, public officials, and technical and financial partners.
Its mission: to produce, share, and promote knowledge and public policy recommendations to address the challenges of irrigated agriculture.
A resource center to answer all your questions about water for food in the face of climate change worldwide.
Enter your keywords or ask a question, and COSTEA’s knowledge will provide instant answers.
COSTEA organizes reflection groups, field expertise, cross-experience feedback, and training around four main themes:
Agroecological re-engineering and management of collective irrigated systems
Wastewater reuse for agriculture
Mitigation of the impact of irrigated agriculture on climate change
Participatory and inclusive territorial water governance
COSTEA supports states in developing public policies for irrigated agriculture adapted to climate change.

Cambodia
Morocco
Tunisia
Palestine
Senegal
Chad
Mauritania
France
These member states form the governance of the COSTEA Think Tank, an ambitious choice to profoundly transform irrigated areas in the face of climate change.
Open Access Publications
People trained this year
COSTEA carries out actions, produces knowledge, and is also committed to knowledge transfer. Over 10 years of experience and expertise to share through the following training courses:
COSTEA offers training on the “multi-barrier” approach to ensure the sanitary safety of wastewater reuse in agriculture. The program includes: practical use of the AMBRE serious game to simulate risk management scenarios, field visits to pilot sites, and adaptation to the specificities of each national context.
COSTEA offers participatory workshops to thoroughly rethink collective irrigated perimeters, beyond simple infrastructure renovation. Through the ARIHA serious game, field analysis, and evaluation of the “cost of inaction,” participants co-construct solutions adapted to their territory.
Facing the challenges of restructuring irrigation development and management companies, COSTEA offers practical training in hydro-agricultural project steering. A first session brought together executives from several West African countries in Mauritania, with long-term support extending up to one year after the training.