New paper out today from David Keith et al.. a nice summary pointing out what is in principle straightforward and known but certainly not well recognized (or quantified); that solar geoengineering would likely also reduce atmospheric CO2 concentrations.
https://www.nature.com/nclimate/journal/v7/n9/full/nclimate3376.html Solar geoengineering is no substitute for cutting emissions, but could nevertheless help reduce the atmospheric carbon burden. In the extreme, if solar geoengineering were used to hold radiative forcing constant under RCP8.5, the carbon burden may be reduced by ~100 GTC, equivalent to 12-26% of twenty-first-century emissions at a cost of under US$0.5 per tCO2. Douglas MacMartin Senior Research Associate & Senior Lecturer, Mechanical and Aerospace Engineering Faculty Fellow, Cornell Atkinson Center for a Sustainable Future Cornell University (650) 619-9341 [email protected] http://climate-engineering.mae.cornell.edu/ -- 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 https://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout.
