Microlevel evidence has improved our understanding of how climate affects individual and household decisions to migrate over time in African and Asian countries. Macrolevel analyses help us assess whether such country-specific evidence may be systematic enough to constitute a global phenomenon. Following a review of recent evidence, this brief segues into the main research challenges in identifying migration–climate links and discusses the policy options to formalize migration as an adaptation mechanism to climate change.
URL : http://www.fao.org/fsnforum/sites/default/files/resources/rb18.pdf