Articles | Volume 16, issue 15
Atmos. Chem. Phys., 16, 9533–9548, 2016
https://doi.org/10.5194/acp-16-9533-2016
Atmos. Chem. Phys., 16, 9533–9548, 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 et al.

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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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