17.11.2014

# New Publications

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Kravitz, Ben; et al. (2014): Process-model simulations of cloud albedo enhancement by aerosols in the Arctic

Kravitz, Ben; Wang, Hailong; Rasch, Philip J.; Morrison, Hugh; Solomon, Amy B. (2014): Process-model simulations of cloud albedo enhancement by aerosols in the Arctic. In Philosophical Transactions of the Royal Society 372 (2031). DOI 10.1098/rsta.2014.0052.

"A cloud-resolving model is used to simulate the effectiveness of Arctic marine cloud brightening via injection of cloud condensation nuclei (CCN), either through geoengineering or other increased sources of Arctic aerosols. An updated cloud microphysical scheme is employed, with prognostic CCN and cloud particle numbers in both liquid and mixed-phase marine low clouds."

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17.11.2014

# Media

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the guardian: Will geoengineering make people give up cutting their carbon footprint?

"Wealthier people are more susceptible to the trap of saying they won’t take action on emissions when they know engineering the planet’s climate is a possibility"

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27.10.2014

# Media

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Alaska Dispatch News: Alaska scientist suggests storing carbon dioxide in polar ice to blunt warming

"In December, the University of Alaska Fairbanks geologist-volcanologist will tack a poster in a San Francisco meeting hall amid the crashing surf of a thousand conversations. To educated passersby at the fall meeting of the American Geophysical Union, he will explain his idea of capturing a greenhouse gas and raining it out over the coldest place on Earth."

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18.08.2014

# Media

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Stuttgarter Zeitung: Direct climate intervention (German)

German newspaper on CE, German research and the CE conference.

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11.06.2014

# Media

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Mapping Ignorance Blog: Geoengineering versus Global Warming

"Whether we decide to do nothing, or to apply CO2 fixation techniques instead of solar radiation management, it is always a good idea to know as much as we can about the climatic response of Earth’s atmosphere. At least as far as our numerical models can go."

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23.05.2014

# New Publications

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Partanen, Antti-Ilari (2014): Modelling Solar Geoengineering via Aerosol Injections

Partanen, Antti-Ilari (2014): Modelling Solar Geoengineering via Aerosol Injections. Department of Applied Physics, University of Eastern Finland (Finnish Meteorological Institute Contributions, 108).

Dissertation. "This thesis encompasses studies on two methods to reflect part of the incoming solar radiation back to space (i.e., solar geoengineering): stratospheric sulphur injections that aim to create a long-lived layer of sulphate aerosols high in the atmosphere to scatter solar radiation, and marine aerosol injections that aim to enhance the reflectivity of marine clouds and scatter incoming solar radiation by the injected particles."

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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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26.02.2014

# Media

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the guardian: Geoengineering side effects could be potentially disastrous, research shows

Response to Keller, David P.; et al. (2014). "Comparison of five proposed methods shows they are ineffective, alter weather systems or could not be safely stopped"

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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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16.01.2014

# Media

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RTCC: UN climate experts warn geoengineering may be essential

"Geoengineering may be necessary for 2C world, says IPCC draft"

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