The increase in GHG gases in the atmosphere due to expansions in
industrial and vehicular concentration is attributed to warming of the
climate world wide. The resultant change in climatic pattern can induce
abnormalities in the hydrological cycle. As a result, the regular
functionality of river watersheds will also be affected. This Brief
highlights a new methodology to rank the watersheds in terms of its
vulnerability to change in climate. This Brief introduces a
Vulnerability Index which will be directly proportional to the climatic
impacts of the watersheds. Analytical Hierarchy Process and Artificial
Neural Networks are used in a cascading manner to develop the model for
prediction of the vulnerability index.