Support for the Deployment of Climate Engineering: A Comparison of Ten Different Technologies

Marilou Jobin and Michael Siegrist

Risk Analysis, 2020, vol. 40, issue 5, 1058-1078

Abstract: Due to the renewed increase in CO2 emissions seen in recent years, the deployment of climate engineering technologies might become necessary if the global temperature increase is to be kept within 1.5 °C. If climate engineering is to be deployed, however, public support is required. The present study hence compared public support for a broad range of climate engineering technologies. Further, the factors that drive public support were investigated and compared across the technologies. In an online survey conducted in Switzerland, respondents (n = 1,575) were randomly allocated to the description of 1 of 10 climate engineering technologies, of which 7 were specific carbon dioxide removal measures and 3 were solar radiation management measures. The results show that the level of public support for afforestation was the highest. The levels of public support for the other climate engineering technologies were relatively similar, although a tendency for solar radiation management to have a lower level of support was identified. Across all the investigated climate engineering technologies, the perceived benefits were an important driver of public support. Additionally, for all the technologies but afforestation, a higher level of trust in industry/science/government increased the level of public support, whereas the factor perceived risks and tampering with nature was found to be a negative predictor of support. The present findings suggest that there are opportunities available for the deployment of several climate engineering technologies in combination with other mitigation measures. Communicating the benefits of such technologies might be an effective strategy in terms of fostering increased support.

Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:wly:riskan:v:40:y:2020:i:5:p:1058-1078

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