Focus on Climate Engineering: Intentional Intervention in the Climate System 2009 Environ. Res. Lett. 4 045101 <link> Geoengineering techniques for countering climate change have been receiving much press recently as a `Plan B' if a global deal to tackle climate change is not agreed at the COP15 negotiations in Copenhagen this December. However, the field is controversial as the methods may have unforeseen consequences, potentially making temperatures rise in some regions or reducing rainfall, and many aspects remain under-researched. This focus issue of Environmental Research Letters is a collection of research articles, invited by David Keith, University of Calgary, and Ken Caldeira, Carnegie Institution, that present and evaluate different methods for engineering the Earth's climate. Not only do the letters in this issue highlight various methods of climate engineering but they also detail the arguments for and against climate engineering as a concept. Further reading Focus on Geoengineering at http://environmentalresearchweb.org/cws/subject/tag=geoengineering IOP Conference Series: Earth and Environmental Science is an open-access proceedings service available at www.iop.org/EJ/journal/ees Focus on Climate Engineering: Intentional Intervention in the Climate System Contents Modification of cirrus clouds to reduce global warming David L Mitchell and William Finnegan Climate engineering and the risk of rapid climate change Andrew Ross and H Damon Matthews Researching geoengineering: should not or could not? Martin Bunzl Of mongooses and mitigation: ecological analogues to geoengineering H Damon Matthews and Sarah E Turner Toward ethical norms and institutions for climate engineering research David R Morrow, Robert E Kopp and Michael Oppenheimer On the possible use of geoengineering to moderate specific climate change impacts Michael C MacCracken The impact of geoengineering aerosols on stratospheric temperature and ozone P Heckendorn, D Weisenstein, S Fueglistaler, B P Luo, E Rozanov, M Schraner, L W Thomason and T Peter The fate of the Greenland Ice Sheet in a geoengineered, high CO2 world Peter J Irvine, Daniel J Lunt, Emma J Stone and Andy Ridgwell Assessing the benefits of crop albedo bio-geoengineering Joy S Singarayer, Andy Ridgwell and Peter Irvine Can we control El Niño? Douglas G MacMynowski Geoengineering by cloud seeding: influence on sea ice and climate system Philip J Rasch, John Latham and Chih-Chieh (Jack) Chen
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