25.06.2015

# New Publications

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Winickoff, David E.; et al. (2015): Engaging the Global South on climate engineering research

Winickoff, David E.; Flegal, Jane A.; Asrat, Asfawossen (2015): Engaging the Global South on climate engineering research. In Nature Climate change 5 (7), pp. 627–634. DOI 10.1038/nclimate2632.

"The Global South is relatively under-represented in public deliberations about solar radiation management (SRM), a controversial climate engineering concept. This Perspective analyses the outputs of a deliberative exercise about SRM, which took place at the University of California-Berkeley and involved 45 mid-career environmental leaders, 39 of whom were from the Global South."

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23.06.2015

# New Publications

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Kravitz, B.; et al. (2015): The Geoengineering Model Intercomparison Project Phase 6 (GeoMIP6): simulation design and preliminary results

Kravitz, B.; Robock, A.; Tilmes, S.; Boucher, O.; English, J. M.; Irvine, P. J. et al. (2015): The Geoengineering Model Intercomparison Project Phase 6 (GeoMIP6): simulation design and preliminary results. In Geosci. Model Dev. Discuss. 8 (6), pp. 4697–4736. DOI 10.5194/gmdd-8-4697-2015.

"We present a suite of new climate model experiment designs for the Geoengineering Model Intercomparison Project (GeoMIP). This set of experiments, named GeoMIP6 (to be consistent with the Coupled Model Intercomparison Project Phase 6), builds on the previous GeoMIP simulations, and has been expanded to address several further important topics, including key uncertainties in extreme events, the use of geoengineering as part of a portfolio of responses to climate change, and the relatively new idea of cirrus cloud thinning to allow more longwave radiation to escape to space."

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14.06.2015

# New Publications

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Aaheim, Asbjørn; et al. (2015): An economic evaluation of solar radiation management

Aaheim, Asbjørn; Romstad, Bård; Wei, Taoyuan; Kristjánsson, Jón Egill; Muri, Helene; Niemeier, Ulrike; Schmidt, Hauke (2015): An economic evaluation of solar radiation management. In The Science of the Total Environment 532, pp. 61–69. DOI 10.1016/j.scitotenv.2015.05.106.

"This paper addresses the economic impacts of implementing two SRM technologies; stratospheric sulfur injection and marine cloud brightening. By the use of a computable general equilibrium model, we estimate the economic impacts of climatic responses based on the results from two earth system models, MPI-ESM and NorESM."

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26.05.2015

# Media

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Phys.org: Climate engineering may save coral reefs, research shows

Media responses to Kwiatkowski, Lester; et al. (2015). "Geoengineering of the climate may be the only way to save coral reefs from mass bleaching, according to new research."

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26.05.2015

# New Publications

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Kwiatkowski, Lester; et al. (2015): Coral bleaching under unconventional scenarios of climate warming and ocean acidification

Kwiatkowski, Lester; Cox, Peter; Halloran, Paul R.; Mumby, Peter J.; Wiltshire, Andy J. (2015): Coral bleaching under unconventional scenarios of climate warming and ocean acidification. In Nature Climate change. DOI 10.1038/nclimate2655.

"Here we analyse the potential for geoengineering, through stratospheric aerosol-based solar radiation management (SRM), to reduce the extent of global coral bleaching relative to ambitious climate mitigation. Exploring the common criticism of geoengineering—that ocean acidification and its impacts will continue unabated—we focus on the sensitivity of results to the aragonite saturation state dependence of bleaching."

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26.05.2015

# New Publications

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Boucher, Olivier (2015): Aerosol-Based Climate Engineering

Boucher, Olivier (2015): Aerosol-Based Climate Engineering. In: Atmospheric Aerosols. Edited by Olivier Boucher. Dordrecht: Springer Netherlands, pp. 287–294. DOI 10.1007/978-94-017-9649-1_13

"This chapter introduces climate engineering as a range of techniques aiming to alleviate the impacts of climate change. Two aerosol-based techniques, known as stratospheric aerosol injection and marine cloud brightening, are discussed in terms of their potential, side effects, and shortcomings."

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07.05.2015

# New Publications

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Svoboda, Toby; Irvine, Peter (2015): Response to Commentaries on ‘Ethical and Technical Challenges in Compensating for Harm Due to Solar Radiation Management Geoengineering’

Svoboda, Toby; Irvine, Peter (2015): Response to Commentaries on ‘Ethical and Technical Challenges in Compensating for Harm Due to Solar Radiation Management Geoengineering’. In Ethics, Policy & Environment 18 (1), pp. 103–105. DOI 10.1080/21550085.2015.1021948.

Response to critique: Reynolds, Jesse (2014).

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30.04.2015

# New Publications

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Horton, Joshua B.; et al. (2015): Liability for Solar Geoengineering. Historical Precedents, Contemporary Innovations, and Governance Possibilities

Horton, Joshua B.; Parker, Andrew; Keith, David W. (2015): Liability for Solar Geoengineering. Historical Precedents, Contemporary Innovations, and Governance Possibilities. In NYU Environmental Law Journal (22), pp. 225–273.

"The absence of liability regimes is sometimes assumed to be a showstopper for solar geoengineering. We examine a set of international liability regimes mostly associated with environmental risks, and suggest that there is a broad legal and historical precedent that might serve as a basis to develop a regime for solar geoengineering."

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29.04.2015

# New Publications

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Cvijanovic, Ivana; et al. (2015): Impacts of ocean albedo alteration on Arctic sea ice restoration and Northern Hemisphere climate

Cvijanovic, Ivana; Caldeira, Ken; MacMartin, Douglas G. (2015): Impacts of ocean albedo alteration on Arctic sea ice restoration and Northern Hemisphere climate. In Environ. Res. Lett. 10 (4). DOI 10.1088/1748-9326/10/4/044020.

"Motivated by this, we investigate the impacts of idealized high latitude ocean albedo changes on Arctic sea ice restoration and climate. In our simulated 4xCO2 climate, imposing surface albedo alterations over the Arctic Ocean leads to partial sea ice recovery and a modest reduction in Arctic warming."

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27.04.2015

# New Publications

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Robock, Alan (2015): Stratospheric aerosol geoengineering

Robock, Alan (2015): Stratospheric aerosol geoengineering. In : 4TH INTERNATIONAL CONGRESS IN ADVANCES IN APPLIED PHYSICS AND MATERIALS SCIENCE (APMAS 2014). Fethiye, Turkey, 24–27 April 2014: AIP Publishing LLC (AIP Conference Proceedings), pp. 183–197.

"The prospect of geoengineering working may reduce the current drive toward reducing greenhouse gas emissions, and there are concerns about commercial or military control. Because geoengineering cannot safely address climate change, global efforts to reduce greenhouse gas emissions and to adapt are crucial to address anthropogenic global warming."

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