Climate and air quality-driven scenarios of ozone and aerosol precursor abatement

Rypdal, K., Rive, N., Berntsen, T.K., Fagerli, H., Klimont, Z. ORCID:, Mideksa, T.K., & Fuglestvedt, J.S. (2009). Climate and air quality-driven scenarios of ozone and aerosol precursor abatement. Environmental Science & Policy 10.1016/j.envsci.2009.08.002.

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In addition to causing domestic and regional environmental effects, many air pollutants contribute to radiative forcing (RF) of the climate system. However, climate effects are not considered when cost-effective abatement targets for these pollutant are established, nor are they included in current international climate agreements. We construct air pollution abatement scenarios in 2030 which target cost-effective reductions in RF i the EU, USA, and China and compare these to abatement scenarios which instead target regional ozone effects and particulate matter concentrations. Our analysis covers emissions of PM (fine, black carbon and organic carbon), SO2, NOx, CH4, VOCs, and CO. We find that the effect synergies are strong for PM/BC, VOC, CO and CH4. While an air quality strategy targeted at reducing ozone will also reduce RF, this will not be the case for a strategy targeting particulate matter. Abatement in China dominates RF reduction, but there are cheap abatement options also available in the EU and USA. The justification for international cooperation on air quality issues is underlined when he co-benefits of reduced RF are considered. Some species, most importantly SO2, contribute a negative forcing on climate. We suggest that given current knowledge, NOx and SO2 should be ignored in RF-targeted abatement policies.

Item Type: Article
Uncontrolled Keywords: Air pollutants; Radiative forcing; Mitigation; Cost-mitigation
Research Programs: Atmospheric Pollution (APD)
Bibliographic Reference: Environmental Science & Policy; 12(7):855-869 (November 2009)
Depositing User: IIASA Import
Date Deposited: 15 Jan 2016 08:41
Last Modified: 27 Aug 2021 17:20

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