Climate change and desertification have been linked to water loss , decreases in water quantity for irrigation and contamination of surface water bodies . Increased runoff in areas in the Sahel with shallow soils increased water flows to lakes and the recharge of water tables . Water scarcity  was among the first impacts of climate change recognised in North African countries such as Morocco which have extensive dryland areas, with countries such as Turkey, Libya, USA and China carrying out large-scale water transfer projects . The decrease in water availability in Morocco was substantial in terms of both surface water supply  and groundwater , threatening agricultural production.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report