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Our publications, reports and research library hosts over 500 specialist reports and research papers on all topics associated with CCS.

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A tale of tails: uncertainty and the social cost of carbon dioxide
A tale of tails: uncertainty and the social cost of carbon dioxide

22nd December 2011

Topic(s): Economics, Policy, law and regulation, Social cost

Recent thinking about the economics of climate change has concerned the uncertainty about the upper bound of both climate sensitivity to greenhouse gases and the damages that might occur at high temperatures. This argument suggests that the appropriate probability distributions for these factors may be fat-tailed. The matter of tail shape has important implications for the calculation of the social cost of carbon dioxide (SCCO2). In this paper a probabilistic integrated assessment model is adapted to allow for the possibility of a thin, intermediate or fat tail for both the climate sensitivity parameter and the damage function exponent. Results show that depending on the tail shape of the climate sensitivity parameter the mean SCCO2rises by 29–85%. Changes in the mean SCCO2due to the adjustments to the damage function alone range from a reduction of 7% to a rise of 12%. The combination of both leads to rises of 33–15%. Greater rises occur for the upper percentiles of the SCCO2estimates. Given the uncertainties in both the science and the economics of climate change different tail shapes deserve consideration due to their important implications for the range of possible values for the SCCO2.

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Disclaimer

The content within the Global CCS Institute Publications, Reports and Research Library is provided for information purposes only. We make every effort and take reasonable care to keep the content of this section up-to-date and error-free. However, we make no claim as to its accuracy, currency or reliability.

Content and material featured within this section of our website includes reports and research published by third parties. The content and material may include opinions and recommendations of third parties that do not reflect those held by the Global CCS Institute.

International inequity aversion and the social cost of carbon
International inequity aversion and the social cost of carbon

21st September 2009

Topic(s): Economics, Policy, law and regulation, Social cost

This paper defines the rate of inequity aversion, distinguishing between the pure rate and the consumption rate. The social cost of carbon is very sensitive to equity weighting and assumptions about the rate of risk and inequity aversion. Estimates for the consumption rate of inequity aversion for recent data suggest that the equity-weighted social cost of carbon is less than 50% larger than the unweighted estimate.

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Disclaimer

The content within the Global CCS Institute Publications, Reports and Research Library is provided for information purposes only. We make every effort and take reasonable care to keep the content of this section up-to-date and error-free. However, we make no claim as to its accuracy, currency or reliability.

Content and material featured within this section of our website includes reports and research published by third parties. The content and material may include opinions and recommendations of third parties that do not reflect those held by the Global CCS Institute.

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