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Emerging migration flows in a changing climate in dryland Africa

journal contribution
posted on 2023-06-08, 11:19 authored by Dominic KnivetonDominic Kniveton, Christopher D Smith, Richard Black
Fears of the movement of large numbers of people as a result of changes in the environment were first voiced in the 1980s (ref. 1). Nearly thirty years later the numbers likely to migrate as a result of the impacts of climate change are still, at best, guesswork(2). Owing to the high prevalence of rainfed agriculture, many livelihoods in sub-Saharan African drylands are particularly vulnerable to changes in climate. One commonly adopted response strategy used by populations to deal with the resulting livelihood stress is migration. Here, we use an agent-based model developed around the theory of planned behaviour to explore how climate and demographic change, defined by the ENSEMBLES project(3) and the United Nations Statistics Division of the Department of Economic and Social Affairs(4), combine to influence migration within and from Burkina Faso. The emergent migration patterns modelled support framing the nexus of climate change and migration as a complex adaptive system(5). Using this conceptual framework, we show that the extent of climate-change-related migration is likely to be highly nonlinear and the extent of this nonlinearity is dependent on population growth; therefore supporting migration policy interventions based on both demographic and climate change adaptation.

History

Publication status

  • Published

Journal

Nature Climate Change

ISSN

1758-678X

Publisher

Nature Publishing Group

Issue

6

Volume

2

Page range

444-447

Department affiliated with

  • Geography Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2012-04-16

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