Articles | Volume 21, issue 1
https://doi.org/10.5194/acp-21-57-2021
https://doi.org/10.5194/acp-21-57-2021
Research article
 | 
04 Jan 2021
Research article |  | 04 Jan 2021

Response of dust emissions in southwestern North America to 21st century trends in climate, CO2 fertilization, and land use: implications for air quality

Yang Li, Loretta J. Mickley, and Jed O. Kaplan

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Yang Li on behalf of the Authors (01 Oct 2020)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (09 Oct 2020) by Alex B. Guenther
RR by Anonymous Referee #1 (22 Oct 2020)
RR by Anonymous Referee #2 (30 Oct 2020)
ED: Publish subject to technical corrections (05 Nov 2020) by Alex B. Guenther
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Short summary
Climate models predict a shift toward warmer, drier environments in southwestern North America. Under future climate, the two main drivers of dust trends play opposing roles: (1) CO2 fertilization enhances vegetation and, in turn, decreases dust, and (2) increasing land use enhances dust emissions from northern Mexico. In the worst-case scenario, elevated dust concentrations spread widely over the domain by 2100 in spring, suggesting a large climate penalty on air quality and human health.
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