Are there reasons against open-ended research into solar radiation management? A model of intergenerational decision-making under uncertainty

Martin Quaas, Johannes Quaas, Wilfried Rickels and Olivier Boucher

Journal of Environmental Economics and Management, 2017, vol. 84, issue C, 1-17

Abstract: Solar radiation management (SRM) has been proposed as a means of last resort against dangerous climate change. We propose a stylized model of intergenerational decision making on SRM research, greenhouse-gas abatement and SRM deployment, under uncertainties about (a) the extent of future climate damage and (b) effectiveness and potential harmful side-effects of SRM. Open-ended research may reveal either that SRM effectively reduces climate damage, or that it would cause more harm than benefits. We find that SRM research increases the likelihood of deployment (“slippery slope”), and derive conditions that it decreases abatement effort in expectation (“moral hazard”). Neither of these provides a rationale against SRM research, though. The rational decision is to perform SRM research, unless (i) discounting is hyperbolic and (ii) the absolute prudence of expected climate damage is smaller than absolute risk aversion. These results generalize to the case where SRM research also provides information on climate sensitivity.

Keywords: Climate economics; Climate engineering; Geoengineering; Solar radiation management; Learning; Hyperbolic discounting; Intergenerational decision-making; Precautionary effort (search for similar items in EconPapers)
JEL-codes: D80 O32 Q54 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (16)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:jeeman:v:84:y:2017:i:c:p:1-17

DOI: 10.1016/j.jeem.2017.02.002

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