Increased climate variability and extreme events are already driving migration  and projecting that longer-term climate change will increase migration flows across Asia . One in three migrants comes from Asia, and the highest ratio of outward migrants is seen from hazard-exposed Pacific countries. In 2019, Bangladesh, China, India and the Philippines each recorded more than 4 million disaster displacements. In Southeast Asia and East Asia, cyclones, floods and typhoons triggered internal displacement of 9.6 million people, almost 30% of total global displacements in 2019. 
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report