Experimental effects of climate messages vary geographically

Baobao Zhang (), Sander van der Linden, Matto Mildenberger, Jennifer R. Marlon, Peter D. Howe and Anthony Leiserowitz
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Baobao Zhang: Yale University
Sander van der Linden: University of Cambridge
Matto Mildenberger: University of California Santa Barbara
Jennifer R. Marlon: Yale University
Peter D. Howe: Utah State University
Anthony Leiserowitz: Yale University

Nature Climate Change, 2018, vol. 8, issue 5, 370-374

Abstract: Abstract Social science scholars routinely evaluate the efficacy of diverse climate frames using local convenience or nationally representative samples1–5. For example, previous research has focused on communicating the scientific consensus on climate change, which has been identified as a ‘gateway’ cognition to other key beliefs about the issue6–9. Importantly, although these efforts reveal average public responsiveness to particular climate frames, they do not describe variation in message effectiveness at the spatial and political scales relevant for climate policymaking. Here we use a small-area estimation method to map geographical variation in public responsiveness to information about the scientific consensus as part of a large-scale randomized national experiment (n = 6,301). Our survey experiment finds that, on average, public perception of the consensus increases by 16 percentage points after message exposure. However, substantial spatial variation exists across the United States at state and local scales. Crucially, responsiveness is highest in more conservative parts of the country, leading to national convergence in perceptions of the climate science consensus across diverse political geographies. These findings not only advance a geographical understanding of how the public engages with information about scientific agreement, but will also prove useful for policymakers, practitioners and scientists engaged in climate change mitigation and adaptation.

Date: 2018
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DOI: 10.1038/s41558-018-0122-0

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