Updated and outdated reservations about research into stratospheric aerosol injection

Wake Smith () and Claire Henly
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Wake Smith: Yale College
Claire Henly: Harvard Kennedy School

Climatic Change, 2021, vol. 164, issue 3, No 15, 15 pages

Abstract: Abstract In this paper, we seek to ground discussions of the governance of stratospheric aerosol injection research in recent literature about the field including an updated understanding of the technology’s deployment logistics and scale, pattern of effects, and research pathways. Relying upon this literature, we evaluate several common reservations regarding the governance of pre-deployment research and testing including covert deployment, technological lock-in, weaponization, slippery slope, and the blurry line between research and deployment. We conclude that these reservations are no longer supported by literature. However, we do not argue that there is no reason for concern. Instead, we enumerate alternative bases for caution about research into stratospheric aerosol injection which are supported by an up-to-date understanding of the literature. We conclude that in order to establish the correct degree and type of governance for stratospheric aerosol injection research, the research community must focus its attention on these well-grounded reservations. However, while these reservations are supported and warrant further attention, we conclude that none currently justifies restrictive governance of early-stage stratospheric aerosol injection research.

Keywords: Governance; Slippery slope; Moral hazard; Stratospheric aerosol injection; Greenfinger; Covert deployment; Geoengineering (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1007/s10584-021-03017-z

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