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Volume 15, issue 16 | Copyright

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

Atmos. Chem. Phys., 15, 9129-9141, 2015
https://doi.org/10.5194/acp-15-9129-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 18 Aug 2015

Research article | 18 Aug 2015

What is the limit of climate engineering by stratospheric injection of SO2?

U. Niemeier and C. Timmreck
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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 Ulrike Niemeier on behalf of the Authors (13 Jul 2015)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (14 Jul 2015) by Ben Kravitz
RR by Anonymous Referee #1 (17 Jul 2015)
RR by Anonymous Referee #2 (24 Jul 2015)
ED: Reconsider after minor revisions (Editor review) (30 Jul 2015) by Ben Kravitz
AR by Ulrike Niemeier on behalf of the Authors (31 Jul 2015)  Author's response    Manuscript
ED: Publish as is (03 Aug 2015) by Ben Kravitz
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The injection of sulfur dioxide is considered as an option for solar radiation management. We have calculated the effects of SO2 injections up to 100 Tg(S)/y. Our calculations show that the forcing efficiency of the injection decays exponentially. This result implies that SO2 injections in the order of 6 times Mt. Pinatubo eruptions per year are required to keep temperatures constant at that anticipated for 2020, whilst maintaining business as usual emission conditions.
The injection of sulfur dioxide is considered as an option for solar radiation management. We...
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