People can understand IPCC visuals and are not influenced by colors

Vittoria Battocletti, Alessandro Romano and Chiara Sotis

LSE Research Online Documents on Economics from London School of Economics and Political Science, LSE Library

Abstract: We carry out two online experiments with large representative samples of the US population to study key climate visuals included in the Sixth Report of the Intergovernmental Panel on Climate Change (IPCC). In the first study (N = 977), we test whether people can understand such visuals, and we investigate whether color consistency within and across visuals influences respondents’ understanding, their attitudes toward climate change and their policy preferences. Our findings reveal that respondents exhibit a remarkably good understanding of the IPCC visuals. Given that IPCC visuals convey complex multi-layered information, our results suggest that the clarity of the visuals is extremely high. Moreover, we observe that altering color consistency has limited impact on the full sample of respondents, but affects the understanding and the policy preferences of respondents who identify as Republicans. In the second study (n = 1169), we analyze the role played by colors’ semantic discriminability, that is the degree to which observers can infer a unique mapping between the color and a concept (for instance red and warmth have high semantic discriminability). We observe that semantic discriminability does not affect attitudes toward climate change or policy preferences and that increasing semantic discriminability does not improve understanding of the climate visual.

Keywords: climate change; IPCC report; climate visuals; colors; framing; visuals; carbon tax; REF fund (search for similar items in EconPapers)
JEL-codes: Q50 Q54 (search for similar items in EconPapers)
Pages: 11 pages
Date: 2023-11-01
New Economics Papers: this item is included in nep-ene and nep-env
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Published in Environmental Research Letters, 1, November, 2023, 18(11). ISSN: 1748-9326

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