Improve understanding of the physical potential and technical feasibility of approaches. None of the SRM approaches have proceeded beyond the level of relatively simple analyses, small-scale laboratory experiments, and preliminary computer simulations. Hence, only a little is known about how effective proposed approaches would be at achieving their stated goals, or how possible it would be to actually deploy them. For example, in the case of stratospheric sulfur aerosol injection options, modeling and experiments to improve understanding of how particles aggregate in the stratosphere are needed. Because this and similar basic research questions relevant to climate engineering would also improve fundamental knowledge about the atmosphere, they could contribute more broadly to understanding the physical climate system. Engineering and cost analyses of different approaches are also likely to be useful as options are explored.
Was this article helpful?