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The influence of learning about carbon dioxide removal (CDR) on support for mitigation policies

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Abstract

A wide range of carbon dioxide removal (CDR) strategies has been proposed to address climate change. As most CDR strategies are unfamiliar to the public, it is unknown how increased media and policy attention on CDR might affect public sentiment about climate change. On the one hand, CDR poses a potential moral hazard: if people perceive that CDR solves climate change, they may be less likely to support efforts to reduce carbon emissions. On the other hand, the need for CDR may increase the perceived severity of climate change and, thus, increase support for other types of mitigation. Using an online survey of US adults (N = 984), we tested these competing hypotheses by exposing participants to information about different forms of CDR. We find that learning about certain CDR strategies indirectly reduces support for mitigation policies by reducing the perceived threat of climate change. This was found to be true for participants who read about CDR in general (without mention of specific strategies), bioenergy with carbon capture and storage, or direct air capture. Furthermore, this risk compensation pattern was more pronounced among political conservatives than liberals—although in some cases, was partially offset by positive direct effects. Learning about reforestation, by contrast, had no indirect effects on mitigation support through perceived threat but was found to directly increase support among conservatives. The results suggest caution is warranted when promoting technological fixes to climate change, like CDR, as some forms may further dampen support for climate change action among the unengaged.

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Notes

  1. Study vignettes (available as Electronic Supplementary Material) contain more information about these CDR approaches.

  2. The attention check consisted of a single item embedded in the items relating to the dependent variable (mitigation policy support). The item instructed participants to “Please select ‘slightly opposed’ as your answer for this item.”

  3. Ninety-one participants did not complete the survey (7.6% of combined complete and incomplete surveys). Within this group, 61 participants withdrew from the survey prior to being assigned to an experimental condition. The remaining 30 participants did not advance to the survey items relating to the dependent variable (mitigation policy support) or withdrew before completing the final survey items. Based on the demographic data available to us, there were no significant differences between those who completed the survey and those who withdrew.

  4. As Model 15 cannot be run when more than two groups are being compared, this model was run separately for each CDR condition (compared to the control). PROCESS Models 59 and 1, as well as an ANCOVA testing non-mediated effects of condition on mitigation support, are available in the Electronic Supplementary Material.

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Acknowledgements

This research was funded by a Beyond Carbon Neutral grant from the University of Michigan Energy Institute. We are grateful to Daniel Raimi, Paige Fischer, and Brian Ellis for their feedback on the carbon dioxide removal technology vignettes. The authors wish to thank the two anonymous reviewers who provided comments on the earlier versions of the manuscript.

Author attribution

All authors contributed equally to the design, data collection, analysis, and write-up of this study.

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Author notes

  1. Kimberly S. Wolske

    Present address: Harris School of Public Policy, University of Chicago, 1155 E 60th St, Chicago, IL, 60637, USA

Authors and Affiliations

  1. School of Natural Resources and Environment, University of Michigan, 440 Church St., Ann Arbor, MI, 48109-1041, USA

    Victoria Campbell-Arvai

  2. Communication Studies | Program in the Environment, University of Michigan, 5417 NQ, 105 S. State Street, Ann Arbor, MI, 48109-1285, USA

    P. Sol Hart

  3. Gerald R. Ford School of Public Policy, University of Michigan, 735 S. State St., Ann Arbor, MI, 48109-3091, USA

    Kaitlin T. Raimi

  4. Erb Institute for Global Sustainable Enterprise, Ross School of Business, University of Michigan, 701 Tappan Ave., Ann Arbor, MI, 48109-1234, USA

    Kimberly S. Wolske

Authors
  1. Victoria Campbell-Arvai
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  2. P. Sol Hart
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Correspondence to Victoria Campbell-Arvai.

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This research was reviewed and approved by the University of Michigan’s Health Sciences and Behavioral Sciences Institutional Review Board; standards for obtaining informed consent from study participants were followed.

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The authors declare that they have no conflicts of interest.

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Campbell-Arvai, V., Hart, P.S., Raimi, K.T. et al. The influence of learning about carbon dioxide removal (CDR) on support for mitigation policies. Climatic Change 143, 321–336 (2017). https://doi.org/10.1007/s10584-017-2005-1

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