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Climate change, migration, and irrigation

Résumé : Climate change will affect both international and internal migration. Earlier work finds evidence of a climate-migration poverty trap: higher temperatures reduce agri- cultural yields, which in turn reduce emigration rates in low-income countries, due to liquidity constraints. We test whether access to irrigation modulates the climate- migration poverty trap, since irrigation protects crops from heat. We regress measures of international and internal migration on decadal averages of temperature and rain- fall, interacted with country-level data on irrigation and income. We find that irri- gation access significantly weakens the climate-migration poverty trap, demonstrating the importance of considering alternative adaptation strategies when analyzing climate migration.
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https://halshs.archives-ouvertes.fr/halshs-02107098
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Submitted on : Tuesday, April 23, 2019 - 3:12:28 PM
Last modification on : Tuesday, September 22, 2020 - 3:54:40 AM

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  • HAL Id : halshs-02107098, version 1

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Théo Benonnier, Katrin Millock, Vis Taraz. Climate change, migration, and irrigation. 2019. ⟨halshs-02107098⟩

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