Migration is one response to climatic stress and shocks. In this article we review the recent literature across various disciplines on the effects of climate change on migration. We explore key features of the relationship between climate change and migration, distinguishing between fast-onset and slow-onset climatic events and examining the causes of heterogeneity in migratory responses to climate events. We also seek to shed light on the interactions between different types of adaptations to climate events as well as the mechanisms underlying the relationship between climate change and migration. Based on our review of the existing literature, we identify gaps in the literature and present some general policy recommendations and priorities for research on climate-induced migration.

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This article examines the interrelationships between rainfall variability, livelihood/food security and migration in rural Savannah communities in Northern Ghana. It addresses the question of how strong dry season migration is pronounced and whether the recent dominant migration type is a coping or adaptation mechanism. The analysis is based on empirical research conducted in four communities of the Nadowli District (Upper West Region), using a mixed methods approach. It was found that the households are highly dependent on rain-fed subsistence agriculture and livestock rearing, showing a low degree of economic diversification. Study participants in general complained about the unpredictability of the weather and linked changes in rainfall to declining crop yields and livestock possession as well as to increasing food prices. A common livelihood strategy used by households is dry-season migration to more suitable farming areas and to mining sites. Research in 2011 revealed that the majority of migrants were forced to migrate during the rainy season in order to feed the household members. This observation may indicate a shift in seasonal migration patterns with potentially harmful consequences for household livelihood security in the future.

This article analyses the dynamics between rainfall variability, food insecurity and human mobility in eight case studies, namely Ghana,

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