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Earth System Dynamics An interactive open-access journal of the European Geosciences Union

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Earth Syst. Dynam., 8, 235-253, 2017
http://www.earth-syst-dynam.net/8/235/2017/
doi:10.5194/esd-8-235-2017
© Author(s) 2017. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
10 Apr 2017
Accounting for the climate–carbon feedback in emission metrics Thomas Gasser et al.
Publications Copernicus
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Short summary
Emission metrics such as GWP or GTP are used to put non-CO2 species on a CO2-equivalent scale. In the fifth IPCC report the metrics are inconsistent, as the climate–carbon feedback is included only for CO2 but not for non-CO2 species. Here, we simulate a new impulse response function for the feedback, and we use it to correct the metrics. For instance, 1 g of CH4 is equivalent to 31 g of CO2 (instead of 28 g) following the corrected GWP100 metric. It is 34 g if other factors are also updated.
Emission metrics such as GWP or GTP are used to put non-CO2 species on a CO2-equivalent scale....
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