Poster's note : MCB not so benign after all! http://onlinelibrary.wiley.com/doi/10.1002/2013JD020445/abstract
Solar irradiance reduction via climate engineering – Impact of different techniques on the energy balance and the hydrological cycle U. Niemeier, H. Schmidt, K. Alterskjær, J.E. Kristjánsson DOI: 10.1002/2013JD020445 Abstract Different techniques of solar radiation management (SRM) have been suggested to counteract global warming, among them the injection of sulfur into the stratosphere, mirrors in space, and marine cloud brightening through artificial emissions of sea salt. This study focuses on to what extent climate impacts of these three methods would be different. We present results from simulations with an Earth system model where the forcing from the increase of greenhouse gases in a transient scenario (RCP4.5) was balanced over 50 years by SRM. While global mean temperature increases slightly due to the inertia of the climate system and evolves similar with time for the different SRM methods, responses of global mean precipitation differ considerably among the methods. The hydrological sensitivity is decreased by SRM, most prominently for aerosol based techniques, sea salt emissions and injection of sulfate into the stratosphere. Reasons for these differences are discussed through an analysis of the surface energy budget. Furthermore effects on large scale tropical dynamics and on regional climate are discussed. -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/groups/opt_out.
