Articles | Volume 22, issue 9
https://doi.org/10.5194/acp-22-5757-2022
https://doi.org/10.5194/acp-22-5757-2022
Research article
 | 
03 May 2022
Research article |  | 03 May 2022

An approach to sulfate geoengineering with surface emissions of carbonyl sulfide

Ilaria Quaglia, Daniele Visioni, Giovanni Pitari, and Ben Kravitz

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Cited articles

Barkley, M. P., Palmer, P. I., Boone, C. D., Bernath, P. F., and Suntharalingam, P.: Global distributions of carbonyl sulfide in the upper troposphere and stratosphere, Geophys. Res. Lett., 35, L14810, https://doi.org/10.1029/2008GL034270, 2008. a
Bartholomaeus, A. and Haritos, V.: Review of the toxicology of carbonyl sulfide, a new grain fumigant, Food Chem. Toxicol., 43, 1687–1701, https://doi.org/10.1016/j.fct.2005.06.016, 2006. a, b
Bingaman, D. C., Rice, C. V., Smith, W., and Vogel, P.: A Stratospheric Aerosol Injection Lofter Aircraft Concept: Brimstone Angel, in: AIAA Scitech 2020 Forum, 6–10 January 2020, Orlando, FL, https://doi.org/10.2514/6.2020-0618, 2020. a
Brühl, C. and Crutzen, P. J.: Scenarios of possible changes in atmospheric temperatures and ozone concentrations due to man's activities, estimated with a one-dimensional coupled photochemical climate model, Clim. Dynam., 2, 173–203, https://doi.org/10.1007/BF01053474, 1988. a
Brühl, C., Lelieveld, J., Crutzen, P. J., and Tost, H.: The role of carbonyl sulphide as a source of stratospheric sulphate aerosol and its impact on climate, Atmos. Chem. Phys., 12, 1239–1253, https://doi.org/10.5194/acp-12-1239-2012, 2012. a, b, c
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Short summary
Carbonyl sulfide is a gas that mixes very well in the atmosphere and can reach the stratosphere, where it reacts with sunlight and produces aerosol. Here we propose that, by increasing surface fluxes by an order of magnitude, the number of stratospheric aerosols produced may be enough to partially offset the warming produced by greenhouse gases. We explore what effect this would have on the atmospheric composition.
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