Articles | Volume 18, issue 16
Atmos. Chem. Phys., 18, 11905–11925, 2018
https://doi.org/10.5194/acp-18-11905-2018

Special issue: The Geoengineering Model Intercomparison Project (GeoMIP):...

Atmos. Chem. Phys., 18, 11905–11925, 2018
https://doi.org/10.5194/acp-18-11905-2018

Research article 21 Aug 2018

Research article | 21 Aug 2018

Changes in clouds and thermodynamics under solar geoengineering and implications for required solar reduction

Rick D. Russotto and Thomas P. Ackerman

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Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Rick Russotto on behalf of the Authors (24 Jul 2018)  Author's response    Manuscript
ED: Publish subject to minor revisions (review by editor) (26 Jul 2018) by Ben Kravitz
AR by Rick Russotto on behalf of the Authors (27 Jul 2018)  Author's response    Manuscript
ED: Publish as is (30 Jul 2018) by Ben Kravitz
AR by Rick Russotto on behalf of the Authors (06 Aug 2018)  Author's response    Manuscript
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Short summary
In simulations with different climate models in which the strength of the Sun is reduced to cancel the surface warming from a quadrupling of atmospheric carbon dioxide, low cloud cover decreases, high cloud cover increases, the upper troposphere and stratosphere cool, and water vapor concentration decreases. The stratospheric cooling and low cloud reduction result in more sunlight reduction being needed than originally thought.
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