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Tipping points ahead? How laypeople respond to linear versus nonlinear climate change predictions
Felix J Formanski1, Marcel M Pein1, David D Loschelder2
1Faculty of Sustainability, Leuphana University Lüneburg, Universitätsallee 1, 21335 Lüneburg, Germany.
Climatic Change
|November 28, 2022
Summary
Portraying climate change as nonlinear did not increase risk perception. However, both linear and nonlinear climate change messages motivated increased donations to environmental organizations.
Area of Science:
- Environmental Psychology
- Climate Change Communication
Background:
- Public perception of climate change risk is crucial for policy support.
- Communication strategies can influence risk perception, but their effectiveness varies.
Purpose of the Study:
- To investigate if nonlinear climate change communication increases laypeople's risk perception.
- To examine the impact of nonlinear vs. linear climate change portrayals on perceived risk characteristics and holistic risk perceptions.
Main Methods:
- A high-powered, preregistered online experiment.
- Participants were exposed to linear or nonlinear predictions of future temperature increases.
- Measured perceptions of qualitative risk (catastrophic potential, controllability) and holistic risk.
Main Results:
- Climate change portrayal type did not significantly affect overall risk perception or efficacy beliefs.
- Nonlinear portrayals increased perceived likelihood of abrupt climate changes but not perceived catastrophe or controllability.
- Both linear and nonlinear climate messages increased willingness to donate to environmental organizations compared to no message.
Conclusions:
- Communicating climate change as nonlinear does not inherently heighten risk perception.
- Climate change messaging, regardless of linearity, can motivate pro-environmental financial contributions.
- Future research should explore nuanced communication strategies for effective climate change engagement.
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