The First Assessment Report of the Intergovernmental Panel on Climate Change (IPCC AR1) in 1990 noted that the greatest single impact of climate change might be on human migration. The report estimated that by 2050, 150 million people could be displaced by climate change related phenomenon like desertification, increasing water scarcity, floods and storm etc. The United Nations Environment Program (UNEP) termed these future migrants as ‘environmental refugees’-people who have been forced to leave their traditional habitat, temporarily or permanently, because of marked environmental disruption (natural and/or triggered by people) that jeopardized their existence and/or seriously affect the quality of their life.