West and Central Africa

West and Central Africa is heavily dependent on subsistence agriculture, with low productivity and food insecurity affecting nearly 50% of the population. Rapid urban growth has led to inadequate infrastructure and sanitation, causing land degradation and water pollution.

The region is highly vulnerable to climate change. Increasing temperatures, accompanied by erratic rainfall and prolonged dry spells and floods, are likely to reduce crop yields with serious implications for food security at a time of significant population growth: West Africa’s population of over 400 million is set to more than double by 2050.

IWMI in West and Central Africa

IWMI works closely with countries in the Economic Community of West African States and regional initiatives to respond to water challenges and priorities. Our partners include national and local governments, research institutes, universities, private sector enterprises, civil society and nongovernmental organizations, farmer associations and development organizations.

IWMI’s work in West and Central Africa focuses on improving water management, agricultural resilience, and climate adaptation. Through initiatives like AICCRA, IWMI helps farmers adapt to climate impacts and improve productivity.

IWMI also enhances irrigation and mechanization through innovation labs for small-scale irrigation, boosting agricultural productivity in water-scarce regions. Digital tools like DIWASA optimize water use, while policy advocacy and social research promote sustainable practices and equitable access to resources. These efforts contribute to building resilience and food security in the region.

Regional representative

Kehinde-Olufunso-Ogunjobi

Kehinde Olufunso Ogunjobi

Country Representative – Ghana

Contact

For work related to West and Central Africa, please contact our regional office in Ghana.

Contact the media team.

Contact our global HQ.

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Projects in West and Central Africa

Latest West and Central Africa news

IRRILINE: Should I choose solar irrigation or fuel pumps?

IRRILINE helps farmers in Ghana understand whether solar irrigation or traditional fuel-powered irrigation make more sense for their fields …

IRRILINE: Making a good choice of irrigation equipment fit for your purpose

IRRILINE helps Ghanaian farmers make informed decisions on irrigation systems based on their resources and crops …

IRRILINE: Irrigation for all

The IRRILINE service offers easily accessible irrigation advice to smallholder farmers in Ghana by phone …

Amidst food crisis, Nigerian farmers drive irrigation solutions

A multi-stakeholder dialogue platform in Nigeria takes ambitious strides to advance irrigation systems created and managed by farmers …

Latest West and Central Africa publications

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Brief

The Water-Energy-Food-Ecosystem Nexus approach to water infrastructure in Africa: integrated planning, climate resilience, and inclusive growth

International Water Management Institute | December 31st, 2025
Zemadim, Birhanu; McCartney, Matthew P.; Matchaya, Greenwell C.; Cofie, Olufunke O.
Open Access
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Report

Pathways for scaling solar-based irrigation technology ownership in Nigeria: suitability and key stakeholder mapping in Kebbi, Kano, and Kaduna states

International Water Management Institute; CGIAR Scaling for Impact Program | November 24th, 2025
Ojeleye, O. A.; Oke, Adebayo; Tilahun, Seifu A.; Minh, Thai Thi
Open Access