Effect of Climate Change on Water Resources in the Yewa–Awori Zone of Ogun State, Nigeria

Climate change is a global phenomenon that has become a major environmental challenge affecting different aspects of the socio – economic development of community and nations globally. The situation is therefore not without having its toll on the water resources in the Yewa – Awori zone of Ogun State of Nigeria. The global effect of the climate change has contributed immensely to the escalating water stress that is being witnessed in the region. This has resulted in significant influence on water availability and quality because of variations in rainfall patterns, rising temperatures, and increasing frequency of extreme weather events. The focus of this chapter is to examine the shifts in rainfall patterns, groundwater recharge, and surface water availability in the region.Additionally, the study examines how climate change affects water resources in the Yewa–Awori zone. Highlights of the influence of climate variability on the availability of surface and ground water; increase in flooding and drought occurrences as well as the effect on water quality and public health are considered.Based on the foregoing, the study concludes that drip irrigation, rainwater harvesting, and solar pumps offer viable solutions.  The study provides actionable recommendations to enhance water security and climate resilience in the critical agro-ecological zone. The recommendations aqre made with regards to integrated water resource management, climate adaptation strategies, and improved environmental monitoring to ensure sustainable water supply in the region.