Water resources refer to the wide range of natural water that exist on the Earth, irrespective of their form. The waterof the lakes, oceans and rivers are the most accessible sources of usable water. Deep subsurface waters, permanent snowfields, groundwater and glaciers are other sources of accessible water. Changing weather patterns can result in climate change, whicin turn can can lead to water scarcity, extreme weather event, contaminated water supplies, and uncertain water avialability. Such effects of climate change have an imapact on the water resources in terms of variability, form, quantity, intensity and timing of precipation. Furthermore, wate rquality is also affected by climate change in both coastal and inland regions. This book unravelsthe recent studies with respect to climate change imapcts on water resources. It will also provide interesting topics for research, which interested readers can take up. This book is meant for students who are looking for an elaborate reference text on this subject.