Taylor, Karl E.
Stenchikov, Georgiy L.
KAUST DepartmentPhysical Sciences and Engineering (PSE) Division
Environmental Science and Engineering Program
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AbstractTo evaluate the effects of stratospheric geoengineering with sulphate aerosols, we propose standard forcing scenarios to be applied to multiple climate models to compare their results and determine the robustness of their responses. Thus far, different modeling groups have used different forcing scenarios for both global warming and geoengineering, complicating the comparison of results. We recommend four experiments to explore the extent to which geoengineering might offset climate change projected in some of the Climate Model Intercomparison Project 5 experiments. These experiments focus on stratospheric aerosols, but future experiments under this framework may focus on different means of geoengineering. © 2011 Royal Meteorological Society.
SponsorsWe thank Bjorn Stevens, Drew Shindell, Jerry Meehl, Ron Stouffer, Andy Jones, Jim Haywood, Phil Rasch, and Marco Giorgetta for their suggestions in improving this document and the outlined scenarios therein. We also thank the reviewers for their thorough, helpful comments. This document also benefited from extensive discussion with attendees of the Strategic Workshop on Geoengineering Research, Hamburg, Germany, 25-26 November 2009, and subsequent discussions with researchers from the IMPLICC project. We thank Luke Oman and Allison Marquardt for their past work on and assistance with our research. The work of B. Kravitz, A. Robock, and G. Stenchikov is supported by NSF grant ATM-0730452. The work of O. Boucher is supported by DECC/Defra Integrated Climate Programme (GA01101). The work of H. Schmidt and M. Schulz is supported by the European Commission within the FP7 project IMPLICC. K. E. Taylor's contribution was supported by the Department of Energy's (DOE's) Global and Regional Climate Modeling Program, and this work was performed under the auspices of the DOE at Lawrence Livermore National Laboratory under contract DE-AC52-07NA27344.
JournalAtmospheric Science Letters