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Despite consensus among scientists and global leaders on what has to happen to arrest climate change, agreement on how to bring about the required change remains elusive. This lack of action is making more people look towards geoengineering to provide a solution.
Rather than the increase in Global-Mean Surface Temperature (GMST) simulated by climate models, recent observations suggest a warming hiatus.
In a paper just published in Geophysical Research LettersIAGP researchers perform a novel simulation where we see if it is possible to restore Arctic sea-ice using stratospheric aerosol injected by planes flying out of Svalbard. We treat a single model run as the real world and examine practical decision making under imperfect observations and incomplete understanding of climate response. We found quantifying climate side effects problematic.