Articles | Volume 16, issue 15
https://doi.org/10.5194/acp-16-9533-2016
https://doi.org/10.5194/acp-16-9533-2016
Research article
 | 
01 Aug 2016
Research article |  | 01 Aug 2016

Co-benefits of global and regional greenhouse gas mitigation for US air quality in 2050

Yuqiang Zhang, Jared H. Bowden, Zachariah Adelman, Vaishali Naik, Larry W. Horowitz, Steven J. Smith, and J. Jason West

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Short summary
Reducing greenhouse gas (GHG) emissions can also improve air quality. We estimate the co-benefits of global GHG mitigation for US air quality in 2050 at fine resolution by downscaling from a previous global study. Foreign GHG mitigation under RCP4.5 contributes more to the US O3 reduction (76 % of the total) than domestic mitigation and contributes 26 % of the PM2.5 reduction. Therefore, the US gains significantly greater air quality co-benefits by coordinating GHG controls internationally.
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