This paper carries out a rational review on the current knowledge of the relationships between climate change and groundwater resources in the face of projected climate changes and the adaptation choices for policy formation. This is inevitable as climate change will bring about numerous environmental problems, including alterations to the hydrological cycle, which is already heavily influenced by anthropogenic activity. The Intergovernmental Panel on Climate Change estimates that temperature has increased 0.6 ± 0.2 oC, and predicts an increase of 2 - 4 oC over the next 100 years. Temperature increases also affect the hydrologic cycle by directly increasing evaporation of available surface water and vegetation transpiration. Consequently, these changes can influence precipitation amounts, timings, and intensity rates, and indirectly impact the storage of water groundwater reservoirs. In this regard, predicting these impacts are just as uncertain as predicting climate trends as they vary over time and space. Despite these uncertainties, there are numerous attempts to build resilient management institutions while still developing a favorable policy framework to increase the consciousness and participation that help promote and protect the optimal utilization of groundwater.
KEYWORDS: Climate change; Groundwater, Integrated Water resources management and Recharge.
