Articles | Volume 21, issue 1
Atmos. Chem. Phys., 21, 57–68, 2021
https://doi.org/10.5194/acp-21-57-2021
Atmos. Chem. Phys., 21, 57–68, 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 et al.

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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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