Water is scarce and pivotal for the Sahel, not only for increasing the productivity for millions of small-scale farmers but also for countering loss of arable land resulting from erosion and warming temperatures. A major barrier to the use of water in the Sahel is the lack of infrastructure and technologies – 45 percent of the population do not have access to water, and only 2 percent of arable land is irrigated (OECD, 2022).