ABSTRACT
Climate change is the most important challenge before mankind and has serious implications for future water availability, food production, ecosystems health and well-being and even the survival of human race. Sea-level rise, changes in precipitation patterns, and increased frequencies of extreme events etc. The impact of climate change on developing nation is highly significant. Asia will be particularly vulnerable to the climate change, because of its concentration of major population concentrated at low elevations. The Western Ghats form one of the four watersheds of India, feeding the perennial rivers originating from these mountains, including Godavari, Kaveri, Krishna, Thamiraparani and Tungabhadra. Habitat fragmentation is considered to be responsible for change in local biodiversity of the river, in recent years there are increasing reports of pollution causing massive fish kill, soil erosion and siltation, and agriculture expansion in the catchment area.
