South Asia, comprising eight countries including Bangladesh, Maldives and Nepal, is affected by a range of natural disasters including floods, glacial lake outburst floods, storm surges, droughts, cyclones and heavy precipitation. These disasters take a huge toll as they displace thousands of people every year. The Intergovernmental Panel on Climate Change has predicted that slow-onset and sudden-onset disasters will increase in severity and frequency, threatening lives and livelihoods across the region. To provide evidence to this issue and assess these trends, the International Organization for Migration has produced an assessment study on climate change, environmental degradation and migration in South Asia. The study contains a review of literature and policies, as well as findings from field research conducted in Bangladesh, Maldives and Nepal. To ensure that climate migration is comprehensively addressed, the study also contains model plans of action ‒ developed after a consultative process at the national level ‒ that can be implemented.