http://onlinelibrary.wiley.com/doi/10.1002/2016GL068079/abstract
Simulated long-term climate response to idealized solar geoengineering Authors Long Cao, Lei Duan, Govindasamy Bala, Ken Caldeira 02 March 2016 doi: 10.1002/2016GL068079 Abstract Solar geoengineering has been proposed as a potential means to counteract anthropogenic climate change, yet it is unknown how such climate intervention might affect the Earth's climate on the millennial time scale. Here we use the HadCM3L model to conduct a 1000-year sunshade geoengineering simulation in which solar irradiance is uniformly reduced by 4% to approximately offset global mean warming from an abrupt quadrupling of atmospheric CO2. During the 1000-year period, modeled global climate, including temperature, hydrological cycle, and ocean circulation of the high-CO2 simulation departs substantially from that of the control preindustrial simulation, whereas the climate of the geoengineering simulation remains much closer to that of the preindustrial state with little drift. The results of our study do not support the hypothesis that non-linearities in the climate system would cause substantial drift in the climate system if solar geoengineering were to be deployed on the timescale of a millennium. -- 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.
