Improving the usability of climate indicator visualizations through diagnostic design principles

Michael D. Gerst (), Melissa A. Kenney and Irina Feygina
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Michael D. Gerst: University of Maryland
Melissa A. Kenney: University of Maryland
Irina Feygina: Independent Behavioral Science Practitioner for Climate and Clean Energy

Climatic Change, 2021, vol. 166, issue 3, No 7, 22 pages

Abstract: Abstract Visual climate indicators have become a popular way to communicate trends in important climate phenomena. Producing accessible visualizations for a general audience is challenging, especially when many are based on graphics designed for scientists, present complex and abstract concepts, and utilize suboptimal design choices. This study tests whether diagnostic visualization guidelines can be used to identify communication shortcomings for climate indicators and to specify effective design modifications. Design guidelines were used to diagnose problems in three hard-to-understand indicators, and to create three improved modifications per indicator. Using online surveys, the efficacy of the modifications was tested in a control versus treatment setup that measured the degree to which respondents understood, found accessible, liked, and trusted the graphics. Furthermore, we assessed whether respondents’ numeracy, climate attitudes, and political party affiliation affected the impact of design improvements. Results showed that simplifying modifications had a large positive effect on understanding, ease of understanding, and liking, but not trust. Better designs improved understanding similarly for people with different degrees of numerical capacity. Moreover, while climate skepticism was associated with less positive subjective responses and greater mistrust toward climate communication, design modification improved understanding equally for people across the climate attitude and ideological spectrum. These findings point to diagnostic design guidelines as a useful tool for creating more accessible, engaging climate graphics for the public.

Keywords: Climate change; Visualization; Indicators; Climate communication; Climate skepticism; Climate change acceptance; Usability testing; Political ideology; Numeracy (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1007/s10584-021-03109-w

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