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COSTEA

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.

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A resource center to answer all your questions about water for food in the face of climate change worldwide.

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Our Key
Themes

COSTEA organizes reflection groups, field expertise, cross-experience feedback, and training around four main themes:

01

Agroecological re-engineering and management of collective irrigated systems

02

Wastewater reuse for agriculture

03

Mitigation of the impact of irrigated agriculture on climate change

04

Participatory and inclusive territorial water governance

Our Partner
Countries

COSTEA supports states in developing public policies for irrigated agriculture adapted to climate change.

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Cambodia

Morocco

Tunisia

Palestine

Senegal

Chad

Mauritania

France

8 Member States

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.

+ 150

Open Access Publications

+ 100

People trained this year

Our Recent Work

Develop Your
Skills

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.

Our News

Participants of the regional training on treated wastewater reuse, in Amman in September 2026

Facing Water Stress, Strengthening the Safe Reuse of Treated Wastewater in Agriculture

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Cambodia: Understanding the transformations of irrigated systems to support the agroecological transition

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Senegal: Regional workshop to rethink collective irrigation systems in the face of agroecological challenges