Climate change and global warming is one of the burning issues, which need more attention, awareness and understanding. It refers to change in average weather pattern for an extended period of time in terms of decades or millions of years. Climate change is caused by several factors like variation in solar radiation, plate movements and volcanic activities. In addition, human intervention plays a major role in ongoing climate change. The continuous rise in global temperature affecting the hydrological cycle has substantial impact on surface and sub-surface water resources. The Inter-governmental Panel on Climate Change (IPCC, 2000) reports that the surging population, increasing industrialization and associated demands for freshwater, food and energy would be major areas of concern in the climate change aspect. Increase of temperature increases evaporation, resulting in droughts. Under warmer environment, more precipitation will occur as rainfall rather than snow. The changes in monsoon rainfall may be considered as measure to examine climate variability in the context of global warming. Glaciers are an important source for fresh water and considered among the most sensitive indicators of climate change. People living in the catchment areas of the Himalayas face increased risk of floods as glaciers retreat followed by drought and water scarcity. In the coming decades, it is predicted that billions of people in developing countries face shortages of water and food as a result of climate change. Rigorous action has to be taken to enable developing countries to adapt to the effects of climate change. Hence, it is an urgent need for assessing impact and vulnerabilities of climate change, as well as considering possible adaptation options. The deliberations in the conference may be useful in understanding the impact of climate change on water resource, create awareness, learning process for planning and implementing adaptation options.