15.04.2014

# New Publications

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Schaller, N.; et al. (2014): The asymmetry of the climate system's response to solar forcing changes and its implications for geoengineering scenarios

Schaller, N.; Sedláček, J.; Knutti, R. (2014): The asymmetry of the climate system's response to solar forcing changes and its implications for geoengineering scenarios. In J. Geophys. Res. Atmos., pp. n/a. DOI 10.1002/2013JD021258.

"Motivated by proposals to compensate CO2-induced warming with a decrease in solar radiation, this study investigates how single forcing simulations should be combined to best represent the spatial patterns of surface temperature and precipitation of idealised geoengineering scenarios."

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09.04.2014

# New Publications

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Drewry, Darren T.; et al. (2014): Simultaneous improvement in productivity, water use, and albedo through crop structural modification

Drewry, Darren T.; Kumar, Praveen; Long, Stephen P. (2014): Simultaneous improvement in productivity, water use, and albedo through crop structural modification. In Glob Chang Biol. DOI 10.1111/gcb.12567.

"Spanning 15% of the global ice-free terrestrial surface, agricultural lands provide an immense and near-term opportunity to address climate change, food, and water security challenges. Through the computationally informed breeding of canopy structural traits away from those of modern cultivars, we show that solutions exist that increase productivity and water use efficiency, while increasing land-surface reflectivity to offset greenhouse gas warming."

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03.04.2014

# New Publications

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Muri, H.; et al. (2014): The climatic effects of modifying cirrus clouds in a climate engineering framework

Muri, H.; Kristjánsson, J. E.; Storelvmo, T.; Pfeffer, M. A. (2014): The climatic effects of modifying cirrus clouds in a climate engineering framework. In J. Geophys. Res. Atmos., pp. n/a. DOI 10.1002/2013JD021063.

"It was found that targeting cirrus clouds everywhere outside of the tropics results in changes to the circulation and precipitation even in the non - climate engineered regions, underscoring the risks of remote side effects and indeed the complexity of the climate system."

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02.04.2014

# New Publications

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Huneeus, Nicolas; et al. (2014): Forcings and feedbacks in the GeoMIP ensemble for a reduction in solar irradiance and increase in CO2

Huneeus, Nicolas; Boucher, Olivier; Alterskjaer, Kari; Cole, Jason N. S.; Curry, Charles L.; Ji, Duoying et al. (2014): Forcings and feedbacks in the GeoMIP ensemble for a reduction in solar irradiance and increase in CO2. In J. Geophys. Res. Atmos., pp. n/a. DOI 10.1002/2013JD021110.

"The forcing and feedback parameters of the net energy flux, as well as its different components at the top-of-atmosphere (TOA) and surface, were examined in ten Earth System Models to better understand the impact of solar radiation management on the energy budget. In spite of their very different nature, the feedback parameter and its components at the TOA and surface are almost identical for the two forcing mechanisms, not only in the global mean, but also in their geographical distributions."

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18.03.2014

# New Publications

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Ming, Tingzhen; et al. (2014): Fighting global warming by climate engineering: Is the Earth radiation management and the solar radiation management any option for fighting climate change?

Ming, Tingzhen; de_Richter, Renaud; Liu, Wei; Caillol, Sylvain (2014): Fighting global warming by climate engineering: Is the Earth radiation management and the solar radiation management any option for fighting climate change? In Renewable and Sustainable Energy Reviews 31, pp. 792–834. DOI 10.1016/j.rser.2013.12.032.

"In this paper we analyze the physical and technical potential of several disrupting technologies that could combat climate change by enhancing outgoing longwave radiation and cooling down the Earth."

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11.03.2014

# New Publications

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Ferraro, Angus J.; et al. (2014): A risk-based framework for assessing the effectiveness of stratospheric aerosol geoengineering

Ferraro, Angus J.; Charlton-Perez, Andrew J.; Highwood, Eleanor J. (2014): A risk-based framework for assessing the effectiveness of stratospheric aerosol geoengineering. In PLoS ONE 9 (2), pp. e88849. DOI 10.1371/journal.pone.0088849 .

"We present a simple, intuitive risk-based framework for classifying these impacts according to whether geoengineering increases or decreases the risk of substantial climate change, with further classification by the level of existing risk from climate change from increasing carbon dioxide concentrations."

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23.02.2014

# Media

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Aljazeera America: If the world had a giant thermostat, who would control the weather?

"Solar-radiation management could slow the effects of climate change but remains controversial"

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18.02.2014

# New Publications

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McCusker, Kelly E.; et al. (2014): Rapid and extensive warming following cessation of solar radiation management

McCusker, Kelly E.; Armour, Kyle C.; Bitz, Cecilia M.; Battisti, David S. (2014): Rapid and extensive warming following cessation of solar radiation management. In Environ. Res. Lett. 9 (2), p. 24005–24005. DOI 10.1088/1748-9326/9/2/024005.

"Here, we consider the scenario in which SRM—via stratospheric aerosol injection—is terminated abruptly following an implementation period during which anthropogenic GHG emissions have continued."

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11.02.2014

# New Publications

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Pitari, Giovanni; et al. (2014): Stratospheric Ozone Response to Sulfate Geoengineering: Results from the Geoengineering Model Intercomparison Project (GeoMIP)

Pitari, Giovanni; Aquila, Valentina; Kravitz, Ben; Robock, Alan; Watanabe, Shingo; Cionni, Irene et al. (2014): Stratospheric Ozone Response to Sulfate Geoengineering: Results from the Geoengineering Model Intercomparison Project (GeoMIP). In J. Geophys. Res. Atmos., pp. n/a. DOI 10.1002/2013JD020566.

"Here we present the effects that increased amounts of sulfate aerosol have on stratospheric meteorology and/or ozone concentrations, as simulated by two general circulation models and two coupled chemistry-climate models within the experiments G3 and G4 of the Geoengineering Model Intercomparison Project (GeoMIP)."

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04.02.2014

# New Publications

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Weili, Weng; Ying, Chen (2014): A Chinese Perspective on Solar Geoengineering

Weili, Weng; Ying, Chen (2014): A Chinese Perspective on Solar Geoengineering (Geoengineering Our Climate? Working Paper and Opinion Article Series).

"This article will examine these assumptions and try to explain that with current available information, these arguments on China’s position and strategies towards geoengineering can be fallible."

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