Valuing the Ozone-Related Health Benefits of Methane Emission Controls

Marcus C. Sarofim (), Stephanie T. Waldhoff () and Susan C. Anenberg ()
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Marcus C. Sarofim: U.S. Environmental Protection Agency (USEPA, 6207A)
Stephanie T. Waldhoff: Pacific Northwest National Laboratory
Susan C. Anenberg: Environmental Health Analytics, LLC

Environmental & Resource Economics, 2017, vol. 66, issue 1, No 3, 45-63

Abstract: Abstract Methane is a greenhouse gas that oxidizes to form ground-level ozone, itself a greenhouse gas and a health-harmful air pollutant. Reducing methane emissions will both slow anthropogenic climate change and reduce ozone-related mortality. We estimate the benefits of reducing methane emissions anywhere in the world for ozone-related premature mortality globally and for eight geographic regions. Our methods are consistent with those used by the US Government to estimate the social cost of carbon (SCC). We find that the global short- and long-term premature mortality benefits due to reduced ozone production from methane mitigation are (2011) $790 and $1775 per tonne methane, respectively. These correspond to approximately 70 and 150 % of the valuation of methane’s global climate impacts using the SCC after extrapolating from carbon dioxide to methane using global warming potential estimates. Results for monetized benefits are sensitive to a number of factors, particularly the choice of elasticity to income growth used when calculating the value of a statistical life. The benefits increase for emission years further in the future. Regionally, most of the global mortality benefits accrue in Asia, but 10 % accrue in the United States. This methodology can be used to assess the benefits of methane emission reductions anywhere in the world, including those achieved by national and multinational policies.

Keywords: Methane; Ozone; Mortality; Air pollution; SCC (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (4)

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DOI: 10.1007/s10640-015-9937-6

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