Data on environmental migration: How much do we know?
Climate change is a key concern for the international community. The links to environmental degradation and human mobility are increasingly understood, leading to calls for data on environmental migrants. However, meaningful data only exist on persons newly displaced by disasters within countries, as the environment being one of the several factors in the decision to migrate compounds the difficulty of quantifying these movements.
This data briefing by IOM’s Global Migration Data Analysis Centre (GMDAC) aims to provide an overview of existing data sources on environmental migration. This briefing identifies good and innovative practices on assessing the evidence to guide new and comparable data collection and support State actors in integrating human mobility in all its facets in adaptation, disaster response and disaster risk reduction planning in the context of environmental and climate change.