Journal of Climate Change, Vol. 2, No. 2 (2016), pp. 71–82. DOI 10.3233/JCC-160018 Response of Himalayan Eco-system to Anticipate Climate Change S.P. Sati 1 * and Y.P. Raiwani 2 1 Department of Geology 2 Department of Computer Science & Engineering HNB Garhwal University, Srinagar Garhwal, Uttarakhand, India * spsatihnbgu@gmail.com Received April 10, 2016; revised and accepted June 20, 2016 Abstract: The climate change is going to have far reaching consequences in the vulnerable Himalayan ecosystems. Although there are efforts to understand the eco-system response to climate variability, considering the vividness and extreme topographical confguration, there is no unique suggestion on the likely impacts of climate change in the Himalayan valleys. In fact each valley should be treated separately in terms of their responses. The present paper is an attempt towards this direction, which gives some insight into the terrain responses that exists in the region to global warming and what really is a way forward. Attempt has also been made to underline implications of these changes on the human communities, along with few success stories; the study gives some recommendations towards combating this threat in the region. Keywords: Ecosystem, Himalaya, Climate, Monsoon, Westerly. *Corresponding Author Background The spectacular Himalayan orogen is an outcome of continental-continental collision that took place ~55 million years ago. The Himalaya is intimately associated with the climate of SE Asian countries and is the source of innumerable life giving river systems that nearly feed more than half of the population in the Indian subcontinent. Being the youngest and loftiest ranges in the world, the continued northward movement of Indian plate is known to make it restless at times, which is manifested in the form of infrequent high magnitude earthquakes. It is because of its dynamic nature, the topography of Himalaya is immature, thus makes it vulnerable to erosion and denudation. Superimposed on the sensitivity of the Himalayan eco-system, the threat posed by global warming suggests that human-induced climate changes, particularly increases in temperature is going to have cascading effect on the Himalayan eco-system because mountain eco-system respond too sensitively to slight change in temperature and precipitation condition (Whiteman, 2000). Under the anticipated global warming scenarios, it is speculated that the earth surface processes are going to be different so much so that the conventional geological concept viz. the present is the key to past may not hold if one would like to reconstruct past earth surface processes using the sediment archives because the anthropogenic modifcation has signifcantly altered the natural processes. The IPCC (2007), report in its regional climate projection indicated that there would be an increase in warming (well above the global mean) over central Asia, the Tibetan Plateau and northern Asia. Similarly, precipitation in summer is likely to increase