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 & West and Central Africa Subregion

Contact

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

Contact the media team.

Contact our global HQ.

Get updates

Be the first to know about IWMI research, data, events, and news.

Inline subscribe form - West and Central Africa updates

Projects in West and Central Africa

Latest West and Central Africa news

CircularEconomy4Ghana Innovation Challenge opens for applications

Startups and entrepreneurs invited to apply for support to scale technology-driven circular economy solutions in Ghana’s agriculture and textile sectors …

Groundwater is Africa’s hidden lifeline, but real-world data is lacking

Researchers are combining continental insights with local fieldwork to ensure groundwater is used sustainably and equitably …

Listen before you build

How IWMI scientists and irrigation managers from Mali co-created a digital irrigation tool for long-term impact …

Where irrigation dialogue becomes action

A multi-stakeholder platform in Nigeria brings together government, financiers and farmers to align priorities and scale irrigation investment in agriculture …

Latest West and Central Africa publications

Thumbnail
Report

Regional Strategic Roadmap: West and Central Africa 2024–2030

International Water Management Institute | June 2nd, 2026
International Water Management Institute
Open Access
Thumbnail
Manual

Enhancing Capacity for Mainstreaming Gender in Nigeria’s Water Sector Policies and Governance

International Water Management Institute | July 8th, 2026
Osei-Amponsah, Charity; Appiah, Sarah; Nicol, Alan
Open Access
Thumbnail
Journal Article

Climate–Yield Interactions in West Africa: Machine Learning Insights for Cocoa Production in Ghana and Côte d’Ivoire

Public Library of Science | July, 2026
Obahoundje, Salomon; Tilahun, Seifu A.; Schmitter, Petra S.
Open Access
Thumbnail
Journal Article

Starting Points of Agroecological Transitions in Africa: Why and How Farm Structure Matter

Elsevier | June 19th, 2026
Girard, Pierre; Mercandalli, Sara; Berre, David; Andrieu, Nadine; Bezner Kerr, Rachel; Coe, Richard; Dedieu, Benoît; Madsen, Sidney; Scopel, Eric; Asnake, Woinishet; Mekuria, Wolde; Dembele, Catherine; Frija, Aymen; Haule, Yohana; Magaju, Christine; Mengistu, Dejene Kassahun; Orounladji, Boko Michel; Raharimalala, Sitrakiniaina
Open Access