GC075
Solar Geoengineering Benefits and Risks:  Modeling, Impacts, Analogs, Engineering, Ethics, and Governance

Session ID#: 77048

Session Description:
With continued unabated increase of greenhouse gas emissions, it is increasingly unlikely that climate change can be limited to prevent significant impacts on society and the ecosystem. Therefore, interest in potential geoengineering schemes is increasing, including solar radiation management (SRM) methods. In this session, we invite abstracts that analyze benefits and side effects of different SRM approaches from global to local scales. We encourage studies that explore results from the Geoengineering Model Intercomparison Project, the Geoengineering Large Ensemble project, in particular abstracts from underrepresented groups and developing countries, including studies by the Developing Country Impacts Modelling Analysis for SRM (DECIMALS) project. We further invite studies of analogs such as volcanic eruptions and ship tracks, presentations on process scale models, including effects on agriculture, ecosystems and the economy; development of technology; and governance and ethical aspects of SRM applications.
Index Terms:

0305 Aerosols and particles [ATMOSPHERIC COMPOSITION AND STRUCTURE]
3305 Climate change and variability [ATMOSPHERIC PROCESSES]
3319 General circulation [ATMOSPHERIC PROCESSES]
6309 Decision making under uncertainty [POLICY SCIENCES & PUBLIC ISSUES]

Primary Convener:  Simone Tilmes, National Center for Atmospheric Research, Atmospheric Chemistry, Observations, and Modeling Laboratory, Boulder, CO, United States
Conveners:  Daniele Visioni, Cornell University, Sibley School of Mechanical and Aerospace Engineering, Ithaca, NY, United States, Ben Kravitz, Indiana University Bloomington, Earth and Atmospheric Sciences, Bloomington, IN, United States and Alan Robock, Rutgers University, New Brunswick, NJ, United States
Primary Liaison:  Simone Tilmes, National Center for Atmospheric Research, Atmospheric Chemistry, Observations, and Modeling Laboratory, Boulder, CO, United States
 
Climate Response to Volcano-like Pulse Versus Sustained Stratospheric Aerosol Forcing (486812)
Lei Duan1,2, Long Cao3, Govindasamy Bala4 and Ken Caldeira2, (1)Zhejiang University, Hangzhou, China, (2)Carnegie Institution for Science Stanford, Dept. of Global Ecology, Stanford, CA, United States, (3)ZheJiang University, Department of Atmospheric Sciences, School of Earth Sciences, Hangzhou, China, (4)Indian Institute of Science, Centre for Atmospheric and Oceanic Sciences, Bangalore, India
 
Sensitivity of Climate Response to the Altitude of Sulfate Aerosol Layer in the Stratosphere (487325)
Govindasamy Bala1, Krishnamohan KS2, Long Cao3, Lei Duan4 and Ken Caldeira4, (1)Indian Institute of Science, Centre for Atmospheric and Oceanic Sciences, Bangalore, India, (2)Indian Institute of Science, Center for Atmospheric and Oceanic Sciences, Bangalore, India, (3)ZheJiang University, Department of Atmospheric Sciences, School of Earth Sciences, Hangzhou, China, (4)Carnegie Institution for Science Stanford, Dept. of Global Ecology, Stanford, CA, United States
 
The regional hydroclimate response to stratospheric sulphate geoengineering and the role of stratospheric heating. (Invited) (487858)
Isla Simpson1, Simone Tilmes2, Jadwiga Richter1, Ben Kravitz3, Douglas MacMartin4, Michael J Mills2, John Fasullo5 and Angeline G Pendergrass6, (1)National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, Boulder, CO, United States, (2)National Center for Atmospheric Research, Atmospheric Chemistry, Observations, and Modeling Laboratory, Boulder, CO, United States, (3)Pacific Northwest National Laboratory, Richland, WA, United States, (4)Cornell University, Sibley School of Mechanical and Aerospace Engineering, Ithaca, NY, United States, (5)NCAR, Boulder, CO, United States, (6)National Center for Atmospheric Research, Boulder, CO, United States
 
Surface Deposition in a Sulfate Geoengineering Scenario: Risks and Vulnerabilities for Soils and Human Health (489221)
Daniele Visioni1, Douglas MacMartin1, Lili Xia2, Eric Slessarev3, Natalie M Mahowald4, Simone Tilmes5 and Christine L Goodale6, (1)Cornell University, Sibley School of Mechanical and Aerospace Engineering, Ithaca, NY, United States, (2)Rutgers Univ, New Brunswick, NJ, United States, (3)University of California Santa Barbara, Santa Barbara, CA, United States, (4)Cornell University, Department of Earth and Atmospheric Sciences, Ithaca, NY, United States, (5)National Center for Atmospheric Research, Atmospheric Chemistry, Observations, and Modeling Laboratory, Boulder, CO, United States, (6)Cornell University, Ecology and Evolutionary Biology, Ithaca, NY, United States
 
Impact of Solar Radiation Modification in Mean and Extreme Climate over Southern Africa (490627)
Izidine Pinto, University of Cape Town, Climate System Analysis Group, Cape Town, South Africa, Christopher Jack, University of Cape Town, Cape Town, South Africa, Christopher J Lennard, Climate Systems Analysis Group, Cape Town, South Africa and Simone Tilmes, National Center for Atmospheric Research, Atmospheric Chemistry, Observations, and Modeling Laboratory, Boulder, CO, United States
 
Long-term Behavior of Stratospheric Aerosol Plumes in a Solar Geoengineering Scenario (497827)
Hongwei Sun, Harvard University, School of Engineering and Applied Sciences, Cambridge, MA, United States, Sebastian David Eastham, Massachusetts Institute of Technology, Aeronautics and Astronautics, Cambridge, MA, United States, David Keith, Harvard University, Engineering and Applied Sciences and Kennedy School of Government, Cambridge, MA, United States and Debra Weisenstein, Harvard University, Cambridge, MA, United States
 
Potential ozone loss in mid-latitude lowermost stratosphere during summer today and in future (498702)
Sabine Robrecht1, Baerbel Vogel1, Simone Tilmes2, Karen Hepler Rosenlof3, Jens-Uwe Grooss1, Andrew W Rollins4, Troy D Thornberry3, Martina Kraemer1, Lance Christensen5 and Rolf Mueller1, (1)Forschungszentrum Juelich, Juelich, Germany, (2)National Center for Atmospheric Research, Atmospheric Chemistry, Observations, and Modeling Laboratory, Boulder, CO, United States, (3)NOAA Earth System Research Laboratory, Chemical Sciences Division, Boulder, CO, United States, (4)NOAA Earth System Research Lab, Boulder, CO, United States, (5)NASA Jet Propulsion Laboratory, Pasadena, CA, United States
 
The North Atlantic Climate Response to Stratospheric Sulfate Geoengineering (500152)
James W Hurrell, Colorado State University, Atmospheric Science, Fort Collins, CO, United States, Lantao Sun, Colorado State University, Department of Atmospheric Science, Fort Collins, CO, US and Katherine Dagon, National Center for Atmospheric Research, Boulder, CO, United States
 
Tuning seasonal and latitudinal variations of stratospheric aerosol optical depth in idealised geoengineering scenarios with very large ensembles of GCM runs (503227)
Thomas Hornigold, Oxford, Oxfordshire, United Kingdom, Myles Robert Allen, University of Oxford, ECI/School of Geography and the Environment, Oxford, United Kingdom, William Ingram, Met Office Hadley center for Climate Change, Exeter, United Kingdom and Sarah Naomi Sparrow, Oxford e-Research Centre, Oxford University, Oxford, United Kingdom
 
Impacts of Marine Cloud Brightening On Atmospheric Chemistry (507351)
Becky Alexander1, Hannah Marie Horowitz2, Christopher D Holmes3, Alicia Noelle Wright4, Tomás Sherwen5, Xuan Wang2, Mathew J Evans6, Jiayue Huang7, Qianjie Chen8 and Lyatt Jaegle7, (1)University of Washington, Department of Atmospheric Sciences, Seattle, WA, United States, (2)Harvard University, Cambridge, MA, United States, (3)Florida State University, Tallahassee, FL, United States, (4)University of Washington Seattle Campus, Seattle, United States, (5)Wolfson Atmospheric Chemistry Laboratories,, Department of Chemistry, University of York, York, United Kingdom, (6)Wolfson Atmospheric Chemistry Laboratories, Department of Chemistry, University of York, York, United Kingdom, (7)University of Washington, Seattle, WA, United States, (8)University of Washington Seattle Campus, Department of Atmospheric Sciences, Seattle, WA, United States
 
Geoengineering: Volcanoes Have Demonstrated A Process and Some Effects (507811)
Russell C Schnell, NOAA Boulder, Boulder, CO, United States
 
Seasonal injection strategies for stratospheric aerosol geoengineering (509711)
Douglas MacMartin1, Daniele Visioni1, Ben Kravitz2, Simone Tilmes3, Jadwiga Richter4 and Michael J Mills3, (1)Cornell University, Sibley School of Mechanical and Aerospace Engineering, Ithaca, NY, United States, (2)Indiana University Bloomington, Earth and Atmospheric Sciences, Bloomington, IN, United States, (3)National Center for Atmospheric Research, Atmospheric Chemistry, Observations, and Modeling Laboratory, Boulder, CO, United States, (4)National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, Boulder, CO, United States
 
Sensitivity of stratospheric ozone changes with stratospheric aerosol geoengineering using the Whole Atmosphere Community Climate Model (WACCM) (510192)
Simone Tilmes1, Douglas Edward Kinnison2, Jadwiga Richter3, Anne Sasha Glanville4, Michael J Mills1, Daniele Visioni5, Douglas MacMartin6 and Ben Kravitz7, (1)National Center for Atmospheric Research, Atmospheric Chemistry, Observations, and Modeling Laboratory, Boulder, CO, United States, (2)NCAR, Boulder, CO, United States, (3)National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, Boulder, CO, United States, (4)Colorado State University, Oskaloosa, KS, United States, (5)Cornell University, Ithaca, United States, (6)Cornell University, Sibley School of Mechanical and Aerospace Engineering, Ithaca, NY, United States, (7)Pacific Northwest National Laboratory, Richland, WA, United States
 
GeoMIP Test Bed Experiment: Injection of Accumulation Mode H2SO4 Particles in Chemistry-Climate Models (511617)
Debra Weisenstein, Harvard University, Cambridge, MA, United States, David Keith, Harvard University, Engineering and Applied Sciences and Kennedy School of Government, Cambridge, MA, United States, Daniele Visioni, Cornell University, Ithaca, United States and Henning Franke, Max-Planck Institute for Metorology, Hamburg, Germany
 
Response of High Latitude Seasonal Cycle to Stratospheric Aerosol Geoengineering (515316)
Jiu Jiang1, Long Cao1, Douglas MacMartin2, Isla Simpson3, Ben Kravitz4, Wei Cheng2, Daniele Visioni2, Simone Tilmes5, Jadwiga Richter3 and Michael J Mills5, (1)ZheJiang University, Department of Atmospheric Sciences, School of Earth Sciences, Hangzhou, China, (2)Cornell University, Sibley School of Mechanical and Aerospace Engineering, Ithaca, NY, United States, (3)National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, Boulder, CO, United States, (4)Pacific Northwest National Laboratory, Richland, WA, United States, (5)National Center for Atmospheric Research, Atmospheric Chemistry, Observations, and Modeling Laboratory, Boulder, CO, United States
 
Terrestrial biogeochemical feedbacks to a geoengineered climate (517397)
Cheng-En Yang1,2, Forrest M. Hoffman1,2, Joshua S Fu2,3, Simone Tilmes4, Lili Xia5, Douglas MacMartin6, Jadwiga Richter7, Michael J Mills4 and Ben Kravitz8,9, (1)Oak Ridge National Laboratory, Computational Earth Sciences Group and Climate Change Science Institute, Oak Ridge, TN, United States, (2)University of Tennessee, Civil and Environmental Engineering, Knoxville, TN, United States, (3)Oak Ridge National Laboratory, Oak Ridge, TN, United States, (4)National Center for Atmospheric Research, Atmospheric Chemistry, Observations, and Modeling Laboratory, Boulder, CO, United States, (5)Rutgers Univ, New Brunswick, NJ, United States, (6)Cornell University, Sibley School of Mechanical and Aerospace Engineering, Ithaca, NY, United States, (7)National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, Boulder, CO, United States, (8)Pacific Northwest National Laboratory, Richland, WA, United States, (9)Indiana University Bloomington, Earth and Atmospheric Sciences, Bloomington, IN, United States
 
Comparing surface and stratospheric impacts of geoengineering with different SO2 injection strategies (518121)
Ben Kravitz1, Douglas MacMartin2, Simone Tilmes3, Jadwiga Richter4, Michael J Mills3, Wei Cheng2, Katherine Dagon5, Anne Sasha Glanville6, Isla Simpson4, J F Lamarque7, Joseph J Tribbia7 and Francis Vitt5, (1)Indiana University Bloomington, Earth and Atmospheric Sciences, Bloomington, IN, United States, (2)Cornell University, Sibley School of Mechanical and Aerospace Engineering, Ithaca, NY, United States, (3)National Center for Atmospheric Research, Atmospheric Chemistry, Observations, and Modeling Laboratory, Boulder, CO, United States, (4)National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, Boulder, CO, United States, (5)National Center for Atmospheric Research, Boulder, CO, United States, (6)National Center for Atmospheric Research, Boulder, United States, (7)NCAR, Boulder, CO, United States
 
Climate engineering to mitigate the projected 21st-century terrestrial drying of the Americas: carbon capture and storage vs. stratospheric sulfate injection ? (518194)
Yangyang Xu, Texas A&M University College Station, College Station, TX, United States, Lei Lin, Sun Yat-Sen University, Zhuhai, China, Zhili Wang, Institute of Atmospheric Composition, Chinese Academy of Meteorological Sciences, Beijing, China, Simone Tilmes, National Center for Atmospheric Research, Atmospheric Chemistry, Observations, and Modeling Laboratory, Boulder, CO, United States, Claudia Tebaldi, Climate Central, Princeton, NJ, United States and GLENS team
 
Could halving warming with stratospheric aerosol geoengineering moderate key climate hazards? (545136)
Peter James Irvine, Harvard University, Cambridge, MA, United States and David Keith, Harvard University, Engineering and Applied Sciences and Kennedy School of Government, Cambridge, MA, United States
 
The Marine Cloud Brightening Project: An atmospheric intervention research program (547372)
Sarah J Doherty1, Robert Wood2, Kelly Wanser3, Sean Garner4, Philip J Rasch5, Armand Neukermans6, Thomas P Ackerman7, Peter N Blossey8, Matthew C Wyant9, Kathryn Murphy4, Elif Karatay4, Kalai Ramea4, Gary F Cooper10, Jack D Foster6, Lee K Galbraith6, Robert Ormond6 and Sudhanshu Jain6, (1)Univ Wash--JISAO, Seattle, WA, United States, (2)Univ Washington, Seattle, WA, United States, (3)SilverLining, Washington, DC, United States, (4)Palo Alto Research Center, Palo Alto, CA, United States, (5)Pacific Northwest National Lab, Richland, WA, United States, (6)FICER, Sunnyvale, CA, United States, (7)Univ of WA--JISAO, Seattle, WA, United States, (8)University of Washington, Seattle, WA, United States, (9)University of Washington Seattle Campus, Atmospheric Sciences, Seattle, WA, United States, (10)FICER, Sunnyvale, United States
 
The Creation of a Coupled Advection-Coagulation Model to Understand the Behavior of Aerosols Injected from the SCoPEx Payload (556339)
Colleen Golja, Harvard University, Cambridge, MA, United States, David Keith, Harvard University, Engineering and Applied Sciences and Kennedy School of Government, Cambridge, MA, United States and Lup Wai Chew, Massachusetts Institution of Technology, Cambridge, United States
 
The Shortwave Cloud and Surface Albedo Response to Stratospheric Sulfate Aerosol Geoengineering (567143)
Flor Vanessa Maciel and Nicole Feldl, University of California Santa Cruz, Santa Cruz, CA, United States
 
Impacts of Solar Radiation Management on seasonal variability of the Equatorial Atlantic Cold Tongue (581462)
Yves Wilfried Pomalegni1, Casimir DA-Allada1,2,3, Awo Mesmin1, Zacharie Sohou3, Ezinvi Baloïtcha1 and Simone Tilmes4, (1)CIPMA, Cotonou, Benin, (2)UNSTIM, Abomey, Benin, (3)IRHOB, Cotonou, Benin, (4)National Center for Atmospheric Research, Atmospheric Chemistry, Observations, and Modeling Laboratory, Boulder, CO, United States
 
Changes in Hadley circulation intensity and poleward-extent under stratospheric aerosol geoengineering using a large ensemble (GLENS) (583139)
Wei Cheng and Douglas MacMartin, Cornell University, Sibley School of Mechanical and Aerospace Engineering, Ithaca, NY, United States
 
Steered Stratospheric Aerosol Injection: Aircraft and Operation Design, Economic and Environmental Impact (583366)
Iris Elisabeth de Vries1, Martin Janssens2 and Steven J Hulshoff2, (1)Stockholm University, Stockholm, Sweden, (2)Delft University of Technology, Aerodynamics, Delft, Netherlands
 
Northern High-latitude Permafrost Response to Solar Geoengineering (589446)
Duoying Ji, Beijing Normal University, College of Global Change and Earth System Science, Beijing, China
 
Robust winter warming over the Northern Hemisphere continents under stratospheric sulfate geoengineering (589720)
Amy H Butler, Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States; Chemical Sciences Division, NOAA Earth System Research Laboratory, Boulder, CO, United States, Antara Banerjee, Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States; National Oceanic and Atmospheric Administration / Earth System Research Laboratory, Chemical Sciences Division, Boulder, CO, United States, Lorenzo M Polvani, Columbia University, Department of Applied Physics and Applied Mathematics, New York, NY, United States and Alan Robock, Rutgers University, New Brunswick, NJ, United States
 
An Overview of the Stratospheric Controlled Perturbation Experiment (SCoPEx) Concept of Operations (591131)
Yomay Shyur1, John A Dykema1, David Keith2 and Frank N Keutsch3, (1)Harvard University, Cambridge, MA, United States, (2)Harvard University, Engineering and Applied Sciences and Kennedy School of Government, Cambridge, MA, United States, (3)Harvard University, School of Engineering and Applied Sciences, Department of Chemistry and Chemical Biology and Department of Earth and Planetary Sciences, Cambridge, MA, United States
 
An Update on Engineering Issues Concerning Stratospheric Aerosol Injection for Geoengineering. (597080)
Andrew Lockley, University of Birmingham, Birmingham, B15, United Kingdom, Douglas MacMartin, Cornell University, Sibley School of Mechanical and Aerospace Engineering, Ithaca, NY, United States and Hugh Hunt, Cambridge, Cambridge, United Kingdom
 
Marine Cloud Brightening modeling. A brief review and proposal for new experiments. (605678)
Robert Wood1, Philip J Rasch2, Matthew C Wyant1, Peter N Blossey3, Sarah J Doherty4, Anna Possner5 and Michael S Diamond6, (1)University of Washington Seattle Campus, Atmospheric Sciences, Seattle, WA, United States, (2)Pacific Northwest National Laboratory, Richland, WA, United States, (3)University of Washington, Seattle, WA, United States, (4)Univ Wash--JISAO, Seattle, WA, United States, (5)Carnegie Institution for Science Stanford, Department of Global Ecology, Stanford, CA, United States, (6)University of Washington, Atmospheric Sciences, Seattle, WA, United States
 
Stratospheric Solar Geoengineering without Ozone Loss? An Update with Experimental Input (609711)
Zhen Dai1, Debra Weisenstein1, Frank N Keutsch2 and David Keith3, (1)Harvard University, Cambridge, MA, United States, (2)UW Madison, Madison, WI, United States, (3)Harvard University, Engineering and Applied Sciences and Kennedy School of Government, Cambridge, MA, United States
 
Building Guidelines for Public and Stakeholder Engagement for Small-Scale Outdoor Solar Geoengineering Research (610172)
Shuchi Talati, Union of Concerned Scientists Washington DC, Washington, DC, United States and Peter C Frumhoff, Union of Concerned Scientists, Cambridge, MA, United States
 
Investigation of Climate Perturbations Caused by the Direct Injection of BC Into the Upper Stratosphere by Rocket Launches (611066)
Karen Hepler Rosenlof1, Martin Ross2, Robert W Portmann1 and Christopher Maloney3, (1)Chemical Sciences Division, NOAA Earth System Research Laboratory, Boulder, CO, United States, (2)Aerospace Corporation Los Angeles, Los Angeles, CA, United States, (3)University of Colorado at Boulder, Boulder, CO, United States
 
Informing the Governance of Geoengineering Research Through Public Deliberations (621256)
Leah Kaplan, Arizona State University, Consortium for Science, Policy and Outcomes, Tempe, AZ, United States, John Nelson, Arizona State University, Tempe, AZ, United States and David C Tomblin, University of Maryland College Park, Science, Technology and Society Programs, College Park, MD, United States
 
Interplay of climate, land use, and solar radiation management indicates potential tipping points of global yield of major crops (622389)
Yuanchao Fan, NORCE-Norwegian Research Centre, Klima, Bergen, Norway, Jerry Tjiputra, Uni Research Climate, Bergen, Norway and Helene Muri, Norwegian University of Science and Technology, Trondheim, Norway
 
An Integrated Approach to Evaluating the Impacts and Consequences of Climate Intervention Strategies (Invited) (627106)
Peter Lawrence1, Simone Tilmes2, Roy Rasmussen3, Andreas F Prein4, Wojciech Grabowski1 and Andrea Smith5, (1)National Center for Atmospheric Research, Boulder, CO, United States, (2)National Center for Atmospheric Research, Atmospheric Chemistry, Observations, and Modeling Laboratory, Boulder, CO, United States, (3)NCAR/RAL, Boulder, CO, United States, (4)National Center for Atmospheric Research, Graz, Austria, (5)University Corporation for Atmospheric Research, COMET, Boulder, CO, United States
See more of: Global Environmental Change
<< Previous Session Proposal | Next Session Proposal >>