Preprints
https://doi.org/10.5194/acp-2021-1059
https://doi.org/10.5194/acp-2021-1059
17 Jan 2022
17 Jan 2022
Status: this preprint is currently under review for the journal ACP.

Opinion: Coordinated Development of Emission Inventories for Climate Forcers and Air Pollutants

Steven J. Smith1, Erin E. McDuffie2, and Molly Charles1 Steven J. Smith et al.
  • 1Joint Global Change Research Institute, Pacific Northwest National Laboratory, College Park, MD
  • 2AAAS Science and Technology Policy Fellowships, Washington, D.C.

Abstract. Emissions into the atmosphere of fine particulates, their precursors, and precursors to tropospheric ozone, not only impact human health and ecosystems, but also impact the climate by altering Earth’s radiative balance. Accurately quantifying these impacts across local to global scales, historically, and in future scenarios, requires emission inventories that are accurate, transparent, complete, comparable, and consistent. In an effort to better quantify the emissions and impacts of these pollutants, also called short-lived climate forcers (SLCFs), the Intergovernmental Panel on Climate Change (IPCC) is developing a new SLCF emissions methodology report. This report would supplement existing IPCC reporting guidance on greenhouse gas (GHG) emissions inventories, currently used by inventory compilers to fulfill national reporting requirements under the United Nations Framework Convention on Climate Change (UNFCCC) and new requirements of the Enhanced Transparency Framework (ETF) under the Paris Agreement starting in 2024. We review the relevant issues, including how air pollutant and GHG inventory activities have historically been structured, as well as potential benefits, challenges, and recommendations for coordinating GHG and air pollutant inventory efforts. We argue that while there are potential benefits to increasing coordination between air pollutant and GHG inventory development efforts, we also caution that there are differences in appropriate methodologies and applications that must jointly be considered.

Steven J. Smith et al.

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • CC1: 'Comment on acp-2021-1059 regarding F-gases', Luke Western, 31 Jan 2022
  • RC1: 'Comment on acp-2021-1059', Zbigniew Klimont, 12 Mar 2022
  • RC2: 'Comment on acp-2021-1059', Anonymous Referee #2, 14 Mar 2022

Steven J. Smith et al.

Steven J. Smith et al.

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Latest update: 27 May 2022
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Short summary
Emissions into the atmosphere of greenhouse gases and air pollutant species impact human health and ecosystems and the climate. Accurately quantifying these impacts requires emission inventories. These inventories have often complied separately, and have different uses and requirements. We discuss here the benefits to increasing coordination between air pollutant and GHG inventory development efforts, but also caution that there are differences in appropriate methodologies and applications.
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