Articles | Volume 18, issue 16
Research article
 | Highlight paper
28 Aug 2018
Research article | Highlight paper |  | 28 Aug 2018

Connecting regional aerosol emissions reductions to local and remote precipitation responses

Daniel M. Westervelt, Andrew J. Conley, Arlene M. Fiore, Jean-François Lamarque, Drew T. Shindell, Michael Previdi, Nora R. Mascioli, Greg Faluvegi, Gustavo Correa, and Larry W. Horowitz

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Cited articles

Ackerley, D., Booth, B. B. B., Knight, S. H. E., Highwood, E. J., Frame, D. J., Allen, M. R., Rowell, D. P., Ackerley, D., Booth, B. B. B., Knight, S. H. E., Highwood, E. J., Frame, D. J., Allen, M. R., and Rowell, D. P.: Sensitivity of Twentieth-Century Sahel Rainfall to Sulfate Aerosol and CO2 Forcing, J. Climate, 24, 4999–5014,, 2011. 
Albrecht, B. A.: Aerosols, Cloud Microphysics, and Fractional Cloudiness, Science, 245, 1227–1230,, 1989. 
Allen, M. R. and Ingram, W. J.: Constraints on future changes in climate and the hydrologic cycle, Nature, 419, 224–232, 2002. 
Allen, R. J.: A 21st century northward tropical precipitation shift caused by future anthropogenic aerosol reductions, J. Geophys. Res.-Atmos., 120, 9087–9102,, 2015. 
Allen, R. J. and Ajoku, O.: Future aerosol reductions and widening of the northern tropical rain belt, J. Geophys Res.-Atmos., 121, 6765–6786,, 2016. 
Short summary
Small particles in Earth's atmosphere (also referred to as atmospheric aerosols) emitted by human activities impact Earth's climate in complex ways and play an important role in Earth's water cycle. We use a climate modeling approach and find that aerosols from the United States and Europe can have substantial effects on rainfall in far-away regions such as Africa's Sahel or the Mediterranean. Air pollution controls in these regions may help reduce the likelihood and severity of Sahel drought.
Final-revised paper