Water sector adaptation measures show medium social and economic feasibility but low feasibility for most African cities due to technical and institutional restrictions, particularly for large supply dams and centralised distribution systems .  Use of integrated water management, water supply augmentation and establishment of decentralised water management systems can reduce risk. Integrated water management measures including sub-national financing, demand management through subsidies, rates and taxes, and sustainable water technologies can reduce water insecurity caused by either drought or floods . 
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report