Climate change, a consequence of global warming has been a hot discussion topic in the recent days.Poor people around the world are among the most sufferers of the erratic climatic event. Climate change is also being proved as doldrums for making people more vulnerable to shocks and stresses more over burden on livelihood capitals i.e. natural, physical, social, financial and human. Thus, this book highlights on the climatic impact around the world and being more specific on current climate change trend on the Koshi basin in Saptari district in Nepal and how the climate change event has aggravated the vulnerability of indigenous community of Nepal(Mushar). Further, this books also provides the recommendation to local and national stakeholders to address the problem of climate change to the poor and vulnerable population.