Africa’s water-related risks to humanity: Spatial patterns and archetypes

Achieving a sustainable water future requires placing Africa’s water-related risks at the forefront of global sustainability agendas. Despite the urgency, systematic, continental-scale assessments remain limited. Drawing on the IPCC framework, water-related risks were evaluated through the combined influence of eight water stressors, human exposure, and societal adaptive capacity. The highest water-related risk areas were predominantly concentrated within the equatorial and sub-equatorial belt of the continent. At the basin level, the Nile, Congo, and Niger basins exhibited the greatest risk levels, while at the country level, Nigeria, the Democratic Republic of Congo, Ethiopia, and Egypt were identified as the most severely affected. These areas are further characterized by high population density, low HDI scores, limited governance capacity, and the concurrent presence of multiple water stressors. In contrast, northern African countries exhibit low WASH-service risks alongside high groundwater risks, indicating that adequate water resources do not inherently reflect underlying resource abundance, but is instead driven by effective infrastructure, governance, and investment. This study provides an analytical and cross-disciplinary framework and unveils spatial patterns and geographic archetypes for guiding future water policies and transboundary cooperation across Africa.