What goes up must come down. If we pump particles into the stratosphere, how will that effect air quality at the ground level? Solar geoengineering may also reduce the self-cleansing capacity of the near-surface atmosphere, allowing pollution to build up. Alternatively, some aspects of air pollution may actually be reduced.
Tim Butler obtained his PhD in 2003 at the University of Melbourne, Australia on the topic of the global atmospheric methane budget. After several years of postdoctoral research experience at the Max Plank Institute for Chemistry in Mainz, Germany, he joined IASS Potsdam to lead a research group with a focus on air pollution modelling. He is also a guest professor at the Freie Universität Berlin.