03.07.2020

# Calls & events

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Call for Abstracts: Invitation to Submit to AGU 2020 Session on Approaches in Measurements and Modeling for Geoengineering

Deadline: 29. July 2020

"This session solicits contributions from participants who have interest and expertise in measurements and modeling of the Earth System that can be applied to Carbon Dioxide Removal and Solar Radiation Management. Through linking these fields in this session, current technologies and ideas will be shared in both realms, promoting further scientific understanding of geoengineering implications."

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01.07.2020

# Media

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Harvard SGRP Blog: Ten Years of GeoMIP (Ben Kravitz)

"On this tenth anniversary, I thought it would be interesting to look back at that original GeoMIP paper and see how my thinking has evolved over the past decade."

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29.06.2020

# Political Papers

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National Academies of Sciences, Engineering, and Medicine (2020): Solar Geoengineering Research Governance: Proceedings of a Workshop—in Brief

National Academies of Sciences, Engineering, and Medicine (2020): Solar Geoengineering Research Governance: Proceedings of a Workshop—in Brief. Washington, DC: The National Academies Press. https://doi.org/10.17226/25811

"In a workshop held in September 2019, the National Academies convened experts to inform a larger study on solar geoengineering. Workshop participants discussed the governance of research at international, national, and sub-national scales and explored research governance mechanisms that might be applied to climate intervention research. This publication summarizes the presentations and discussions for the workshop."

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29.06.2020

# Political Papers

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National Academies of Sciences, Engineering, and Medicine (2020): Developing a Research Agenda for Solar Geoengineering Strategies: Proceedings of a Workshop—in Brief

National Academies of Sciences, Engineering, and Medicine (2020): Developing a Research Agenda for Solar Geoengineering Strategies: Proceedings of a Workshop—in Brief. Washington, DC: The National Academies Press. https://doi.org/10.17226/25815

"In a workshop held in August 2019, the National Academies convened experts to inform a larger study on solar geoengineering. Workshop participants discussed the current status of, and future directions for research on solar geoengineering strategies, including stratospheric aerosol injection, marine cloud brightening, and cirrus cloud thinning. This publication summarizes the presentations and discussions for the workshop."

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29.06.2020

# Political Papers

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C2G: An important opportunity to engage with SAI research governance

"Earlier this month, the advisory committee to a Harvard University research group invited comments on how it should help govern an experiment about stratospheric aerosol injection."

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29.06.2020

# Political Papers

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Union of Concerned Scientists: Issue Brief: Strengthening Public Input on Solar Geoengineering Research

"What’s needed for decisionmaking on atmospheric experiments."

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17.06.2020

# New Publications

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Karami, K.; et al. (2020): Storm Track changes in the Middle East and North Africa under stratospheric aerosol geoengineering

Karami, K.; Tilmes, S.; Muri, H.; Mousavi, S. V. (2020): Storm Track changes in the Middle East and North Africa under stratospheric aerosol geoengineering. In Geophys. Res. Lett. DOI: 10.1029/2020GL086954.

"Previous modeling studies suggest that storm tracks will shift poleward due to the increases in the greenhouse gas concentrations. As a consequence of this, the Middle East, North Africa, and Mediterranean regions will most likely experience a strong precipitation decrease, increasing the pressure on the region's vulnerable environment. Our results from an Earth system model indicate that SAG can partially offset the poleward shift of the storm tracks, thus potentially sooth the environmental and water stresses of the region."

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15.06.2020

# Media

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Blog: Gernot Wagner: Someone’s Going to Dim the Big Light

"Solar geoengineering is fast, cheap, scary, and inevitable."

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15.06.2020

# Political Papers

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Aldy, Joseph E., and Richard J. Zeckhauser. 2020: “Three Prongs for Prudent Climate Policy.”

Aldy, Joseph E., and Richard J. Zeckhauser. 2020: “Three Prongs for Prudent Climate Policy.” Resources for the Future. https://doi.org/10.2139/ssrn.3572331.

"After reviewing emission mitigation’s poor performance and low-probability of delivering on long-term climate goals, we evaluate a three-pronged strategy for mitigating climate change risks: adding adaptation and amelioration—through solar radiation management (SRM)—to the emission mitigation approach."

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15.06.2020

# New Publications

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Da‐Allada, C. Y.; et al. 2020: “Changes in West African Summer Monsoon Precipitation under Stratospheric Aerosol Geoengineering.”

Da‐Allada, C. Y., E. Baloïtcha, E. A. Alamou, F. M. Awo, F. Bonou, Y. Pomalegni, E. I. Biao, et al. 2020: “Changes in West African Summer Monsoon Precipitation under Stratospheric Aerosol Geoengineering.” Earth’s Future. https://doi.org/10.1029/2020ef001595.

"Using simulations from the Geoengineering Large Ensemble project that employed stratospheric sulfate aerosols injection to keep global mean surface temperature, and also the inter‐hemispheric and equator‐to‐pole temperature gradients at their 2020 values (present‐day climate) under RCP8.5 scenario, we investigate the potential impact of SAG on the West African Summer Monsoon (WASM) precipitation and the involved physical processes."

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