Publication Abstracts

Shindell et al. 2008

Shindell, D., J.-F. Lamarque, N. Unger, D. Koch, G. Faluvegi, S. Bauer, and H. Teich, 2008: Climate forcing and air quality change due to regional emissions reductions by economic sector. Atmos. Chem. Phys., 8, 7101-7113, doi:10.5194/acp-8-7101-2008.

We examine the air quality (AQ) and radiative forcing (RF) response to emissions reductions by economic sector for North America and developing Asia in the CAM and GISS composition/climate models. Decreases in annual average surface particulate are relatively robust, with intermodel variations in magnitude typically <30% and very similar spatial structure. Surface ozone responses are small and highly model dependent. The largest net RF results from reductions in emissions from the North America industrial/power and developing Asia domestic fuel burning sectors. Sulfate reductions dominate the first case, for which intermodel variations in the sulfate (or total) aerosol optical depth (AOD) responses are ∼30% and the modeled spatial patterns of the AOD reductions are highly correlated (R=0.9). Decreases in BC dominate the developing Asia domestic fuel burning case, and show substantially greater model-to-model differences. Intermodel variations in tropospheric ozone burdens are also large, though aerosol changes dominate those cases with substantial net climate forcing. The results indicate that across-the-board emissions reductions in domestic fuel burning in developing Asia and in surface transportation in North America are likely to offer the greatest potential for substantial, simultaneous improvement in local air quality and near-term mitigation of global climate change via short-lived species. Conversely, reductions in industrial/power emissions have the potential to accelerate near-term warming, though they would improve AQ and have a long-term cooling effect on climate. These broad conclusions appear robust to intermodel differences.

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BibTeX Citation

  author={Shindell, D. and Lamarque, J.-F. and Unger, N. and Koch, D. and Faluvegi, G. and Bauer, S. and Teich, H.},
  title={Climate forcing and air quality change due to regional emissions reductions by economic sector},
  journal={Atmos. Chem. Phys.},

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RIS Citation

ID  - sh00500s
AU  - Shindell, D.
AU  - Lamarque, J.-F.
AU  - Unger, N.
AU  - Koch, D.
AU  - Faluvegi, G.
AU  - Bauer, S.
AU  - Teich, H.
PY  - 2008
TI  - Climate forcing and air quality change due to regional emissions reductions by economic sector
JA  - Atmos. Chem. Phys.
VL  - 8
SP  - 7101
EP  - 7113
DO  - 10.5194/acp-8-7101-2008
ER  -

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