Giovanni Peri, Akira Sasahara, 15 July 2019

Though the economic consequences of climate change will be felt across the globe, not all populations will be affected equally. This column examines the impact of rising temperatures on migrant communities. Using historical data from three decades (1970-2000), it finds that higher temperatures increased the number of rural-to-urban migrations in middle-income countries while decreasing rural-to-urban migrations in poor countries. The prospect of climate change leaving large rural populations trapped in poverty adds urgency to the case for addressing the asymmetric effects of global warming. 

Cristina Cattaneo, Giovanni Peri, 14 November 2015

Climate change can affect agricultural productivity and the incentives of people to remain in rural areas. This column looks at the effects of warming trends on rural-urban and international migration. In middle-income economies, higher temperatures increased emigration rates to urban areas and to other countries. In very poor countries, however, higher temperatures reduced the probability of emigration to cities or to other countries, consistent with the presence of liquidity constraints.

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