The World Development Report on Migrants, Refugees, and Societies states, migration will become a necessity to cope with global economic imbalances, diverging demographic trends, and climate change.
| Affected by | Countries | 
| Sea level rise and coastal floods | Bangladesh, India, Pakistan, and Sri Lanka | 
| Glacial melt and temperature rise | Bhutan, Afghanistan and Nepal | 
| Threat of submersion | small island nations like Maldives | 
| In 2020, cyclone Amphan alone displaced five million people across South Asia. In 2015, Nepal’s Gorkha earthquake displaced 2.6 million people, and left over 6 lakh homeless. Over 7.9 million people were displaced by the floods in Pakistan, in 2022. | 
South Asia would have an estimated 50 million climate refugees by 2050.
References
The Hindu -South Asia’s climate migration is a ticking bomb