Environmental Migration

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Quantifying environmental migration, displacement and mobility is challenging given the multiple drivers of such movement, related methodological challenges and the lack of data collection standards. Some quantitative data exist on population displacement within a country, and to a lesser degree across borders, due to natural hazards. However, for mobility due to slow-onset environmental processes, such as drought or sea-level rise, most existing data are qualitative and based on case studies, with few comparative studies. While research methodologies are constantly being improved, and projection models for future mobility due to climate are being developed, data gaps still persist.


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