Uncertainty, scepticism and attitudes towards climate change: biased assimilation and attitude polarisation |
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| Authors: | Adam Corner Lorraine Whitmarsh Dimitrios Xenias |
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| Institution: | 1. School of Psychology, Cardiff University, Affiliate of the BRASS Centre, Cardiff University & Tyndall Centre for Climate Change Research, Tower Building, Park Place, Cardiff CF10 3AT, UK
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| Abstract: | ‘Scepticism’ in public attitudes towards climate change is seen as a significant barrier to public engagement. In an experimental study, we measured participants’ scepticism about climate change before and after reading two newspaper editorials that made opposing claims about the reality and seriousness of climate change (designed to generate uncertainty). A well-established social psychological finding is that people with opposing attitudes often assimilate evidence in a way that is biased towards their existing attitudinal position, which may lead to attitude polarisation. We found that people who were less sceptical about climate change evaluated the convincingness and reliability of the editorials in a markedly different way to people who were more sceptical about climate change, demonstrating biased assimilation of the information. In both groups, attitudes towards climate change became significantly more sceptical after reading the editorials, but we observed no evidence of attitude polarisation—that is, the attitudes of these two groups did not diverge. The results are the first application of the well-established assimilation and polarisation paradigm to attitudes about climate change, with important implications for anticipating how uncertainty—in the form of conflicting information—may impact on public engagement with climate change. |
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