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Multi-gas emission reduction for climate change policy: An application of FUND
The costs of greenhouse gas emission reduction with abatement of carbon dioxide, methane, and nitrous oxide are investigated using the FUND model. The central policy scenario keeps anthropogenic radiative forcing below 4.5 Win2. If CO2 emission reduction were the only possibility to meet this target, the net present value of consumption losses would be $45 trillion; with abatement of the other gases added, costsfall to $33 trillion. The bulk of these costs savings can be ascribed to reductions of nitrous oxide. Because nitrous oxide emission reduction is so much more important than methane emission reduction, the choice of equivalence metric between the greenhouse gases does not matter much. Sensitivity analyses show that the shape of the cost curves for CH4 and N2O emission reductions matter, and that the inclusion of sulphate aerosols makes policy targets substantially harder to achieve. The costs of emission reduction vary greatly with the choice of stabilisation target. A target of 4.5 WM-2 is not justified by our current knowledge of the damage costs of climate change.
History
Publication status
- Published
Journal
Energy JournalISSN
0195-6574Publisher
International Association for Energy EconomistsIssue
SPEC.Volume
27Page range
235-250Department affiliated with
- Economics Publications
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- No
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- Yes
Legacy Posted Date
2012-04-18Usage metrics
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