Abstract
Climate change-induced migration is a rapidly increasing phenomenon estimated to affect millions of people in the coming decades. With increasing media coverage of climate migration, including within the United States, it is critical to understand how to effectively communicate about this issue. In two high-powered experiments of U.S. Democrats and Republicans (& leaners; Study 1: N = 1452; Study 2: N = 1873), we test the effects of fictional news coverage about domestic and international climate-induced migration on climate change and migration risk perceptions, warmth toward migrants, and policy support. We also tested whether including a personal story about a specific migrant alongside numerical trends could increase support for climate change mitigation and aiding potential migrants. Impacts on climate outcomes were minimal: in Study 1, those exposed to different message frames reported similar climate policy support and risk perception in Study 1, and, in Study 2, domestic (but not international) climate migration coverage slightly increased climate risk perceptions and marginally increased mitigation policy support compared to a no-message baseline. In both studies, international migration was perceived as riskier to Americans than domestic migration, and coverage of international migration heighted this perceived risk. Coverage of domestic climate migration, on the other hand, did not boost risk perceptions of that type of migration. Furthermore, coverage of international climate migration led to greater support for adaptation infrastructure to help potential migrants stay home but did not affect support for policies to help migration. Contrary to expectations, the inclusion of personal stories did not affect warmth toward migrants in either study. Political affiliation dominated associations with all climate change and migration outcomes, likely obscuring potential framing effects. These results suggest that coverage about climate-induced migration may face challenges in shifting entrenched public opinion and policy support. Communicators should be aware of the limitations of using this type of coverage to promote constructive actions to address climate change and migration.
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