Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/177252
Authors: 
Emmerling, Johannes
Tavoni, Massimo
Year of Publication: 
2017
Series/Report no.: 
Working Paper 058.2017
Abstract: 
The mismatch between actions to combat climate change, which are based on voluntary national initiatives of limited effort, and the recognition of the importance of global warming is growing. Climate engineering via solar radiation management has been proposed as a possible complement to traditional climate policies. However, climate engineering entails specific risks, including its governance. Free driving, the possibility of unilateral climate engineering to the detriment of other nations, has been recently proposed as a potentially powerful additional externality to the traditional free riding one (Weitzman, 2015). This paper provides the first quantitative evaluation of the risks of free driving. Our results indicate that in a strategic setting there is significant over-provision (by almost an order of magnitude) of climate engineering above what is socially optimal, resulting in a sub-optimal global climate. Regions with high climate change impacts, most notably India and developing Asia, deploy climate engineering at the expenses of other regions.
Subjects: 
Climate Engineering
Climate Governance
Free Driving
Climate Policy
JEL: 
H41
Q54
Q58
Document Type: 
Working Paper
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