The paper by the Challenge Program on Water and Food deals with the impact of climate change on water resources & glacier melt and potential adaptations in Indian agriculture. Global climatic changes will have major effects on precipitation, water availability, glacier/ice melt, and sea level rise. Climate-induced changes in hydrological conditions will affect the magnitude, frequency, and damage costs of future extreme events.
There is evidence that flooding is likely to become a larger problem in South Asian countries. The most significant uncertainties are the changes in precipitation and runoff projected by large-scale general circulation models. Uncertainties exist in translating large-scale climatic changes into specific regional impacts because of problems with models and data, and because many of the human impacts will depend on economic, technological, and institutional factors that help define our water system.
For a comprehensive, integrated and futuristic policy framework on adaptation to climate change in water resources the following recommendations need to be seriously considered -
The full paper can be downloaded here