November 2013

30.11.2013

# Media

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Geoengineering Politics Blog: Quick Recap of COP19 from a Geoengineering Perspective

"COP19 in Warsaw has come to its merciful conclusion, with little of significance to report from a geoengineering perspective."

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30.11.2013

# Media

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Awaken: Futuristic Phytoplankton Farm Could Restore Equilibrium In Oceans

Futuristic algea farm. Posted on an esoteric website.

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30.11.2013

# Media

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the guardian: Climate science: can geoengineering save the world?

"Climate professors Mike Hulme and David Keith go head to head over whether climate engineering could provide a solution to climate change"

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27.11.2013

# New Publications

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Kravitz, Ben; et al. (2013): Sea spray geoengineering experiments in the geoengineering model intercomparison project (GeoMIP): Experimental design and preliminary results

Kravitz, Ben; Forster, Piers M.; Jones, Andy; Robock, Alan; Alterskjaer, Kari; Boucher, Olivier et al. (2013): Sea spray geoengineering experiments in the geoengineering model intercomparison project (GeoMIP): Experimental design and preliminary results. In J. Geophys. Res. Atmos. 118 (19), pp. 11,175. DOI 10.1002/jgrd.50856.

"We outline here a proposal for three coordinated climate modeling experiments to test aspects of sea spray geoengineering, to be conducted under the auspices of the Geoengineering Model Intercomparison Project (GeoMIP)."

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27.11.2013

# New Publications

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Kravitz, Ben; et al. (2013): An energetic perspective on hydrological cycle changes in the Geoengineering Model Intercomparison Project (GeoMIP)

Kravitz, Ben; Rasch, Philip J.; Forster, Piers M.; Andrews, Timothy; Cole, Jason N. S.; Irvine, Peter J. et al. (2013): An energetic perspective on hydrological cycle changes in the Geoengineering Model Intercomparison Project (GeoMIP). In J. Geophys. Res. Atmos., pp. n/a. DOI 10.1002/2013JD020502.

"We apply this energetic perspective to output from 11 fully coupled atmosphere-ocean general circulation models simulating experiment G1 of the Geoengineering Model Intercomparison Project (GeoMIP), which achieves top-of-atmosphere energy balance between an abrupt quadrupling of CO2 from preindustrial levels (abrupt4xCO2) and uniform solar irradiance reduction."

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27.11.2013

# Media

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Scientific American: Starting then Stopping Geoengineering Could Dangerously Accelerate Climate Change

Media response to Jones, et al. (2013). "Starting then Stopping Geoengineering Could Dangerously Accelerate Climate Change."

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27.11.2013

# New Publications

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Jones, Andy; et al. (2013): The impact of abrupt suspension of solar radiation management (termination effect) in experiment G2 of the Geoengineering Model Intercomparison Project (GeoMIP)

Jones, Andy; Haywood, Jim M.; Alterskjaer, Kari; Boucher, Olivier; Cole, Jason N. S.; Curry, Charles L. et al. (2013): The impact of abrupt suspension of solar radiation management (termination effect) in experiment G2 of the Geoengineering Model Intercomparison Project (GeoMIP). In J. Geophys. Res. Atmos. 118 (17), pp. 9743–9752. DOI 10.1002/jgrd.50762.

"We have examined changes in climate which result from the sudden termination of geoengineering after 50 years of offsetting a 1% per annum increase in CO2 concentrations by a reduction of solar radiation, as simulated by 11 different climate models in experiment G2 of the Geoengineering Model Intercomparison Project."

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27.11.2013

# Calls & events

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Symposium on CE: ‘Klimaatengineering: hype, hoop of wanhoop?’

12.12.2013, Rathenau Instituut, The Hague (NL)

Dutch Symposium on CE with an English presentation by Jack Stilgoe.

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26.11.2013

# New Publications

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Wood, Robert; Ackerman, Thomas P. (2013): Defining success and limits of field experiments to test geoengineering by marine cloud brightening

Wood, Robert; Ackerman, Thomas P. (2013): Defining success and limits of field experiments to test geoengineering by marine cloud brightening. In Climatic Change 121 (3), pp. 459–472. DOI 10.1007/s10584-013-0932-z.

"We discuss the science of MCB and review a set of field experiments that has been proposed as de minimis first steps to field test the concept."

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25.11.2013

# New Publications

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Ilyina, Tatiana; et al. (2013): Assessing the potential of calcium-based artificial ocean alkalinization to mitigate rising atmospheric CO2 and ocean acidification (online first)

Ilyina, Tatiana; Wolf-Gladrow, Dieter; Munhoven, Guy; Heinze, Christoph (2013): Assessing the potential of calcium-based artificial ocean alkalinization to mitigate rising atmospheric CO 2 and ocean acidification. In Geophys. Res. Lett., pp. n/a. DOI 10.1002/2013GL057981. (online first)

"Using a global model, we show that such alkalinization has the potential to preserve pH and the saturation state of carbonate minerals at close to today's values."

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