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Environmental and Resource Economics

, Volume 53, Issue 1, pp 97–116 | Cite as

On the Uncertainty About the Total Economic Impact of Climate Change

  • Richard S. J. Tol
Open Access
Article

Abstract

This paper uses a vote-counting procedure to estimate the probability density function of the total economic impact as a parabolic function of global warming. There is a wide range of uncertainty about the impact of climate change up to 3°C, and the information becomes progressively more diffuse beyond that. Warming greater than 3°C most likely has net negative impacts, and warming greater than 7°C may lead to a total welfare loss. The expected value of the social cost of carbon is about $29/tC in 2015 and rises at roughly 2% per year.

Keywords

Climate change Economic impact Meta-analysis Social cost of carbon 

JEL Classification

Q54 

Notes

This paper benefitted from discussions with and comments by David Anthoff, Trudy Ann Cameron, Bill Cline, Sam Fankhauser, Sean Lyons, David Maddison, Rob Mendelsohn, Bill Nordhaus, Steve Pacala, David Pearce, Katrin Rehdanz, Till Requate, Joel Smith, Jeremy Stein, Timothy Taylor, John Weyant and Gary Yohe. Three anonymous referees had excellent comments on an earlier version. The Climate Cost project (CEC DG Research FP7) provided welcome financial support. All errors and opinions are mine.

Open Access

This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.

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Copyright information

© The Author(s) 2012

Authors and Affiliations

  1. 1.Department of EconomicsUniversity of SussexBrightonUK
  2. 2.Institute for Environmental StudiesVrije UniversiteitAmsterdamThe Netherlands
  3. 3.Department of Spatial EconomicsVrije UniversiteitAmsterdamThe Netherlands
  4. 4.Mantell BuildingUniversity of SussexFalmerUK

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