Note that I did not require decarbonization of the economy as a pre-requisite for deployment as my proposal allows existing CO2-emitting devices to continue being used. I merely required that we stop building new CO2-emitting devices.
My point is that if climate change is enough of an emergency to require rapid deployment of solar geoengineering then it is also enough of an emergency to stop building devices that will exacerbate that emergency. If we are doing solar geoengineering at the same time as we are building new fossil-fueled power plants that use the atmosphere as a waste dump, how do you assure that the solar geoengineering system does not facilitate continued production of those devices? _______________ Ken Caldeira Carnegie Institution for Science Dept of Global Ecology 260 Panama Street, Stanford, CA 94305 USA +1 650 704 7212 kcalde...@carnegiescience.edu http://dge.stanford.edu/labs/caldeiralab @kencaldeira On Wed, Sep 11, 2013 at 1:25 PM, Andrew Lockley <andrew.lock...@gmail.com>wrote: > Ken > > We need to control temperatures far more quickly than we can hope to > decarbonise the economy. > > Are you seriously trying to argue that every car factory in the world > needs to close before we can do any SRM at all? That seems entirely > implausible. > > Perhaps more sensible to suggest that emissions growth be capped (possibly > at zero) before geoengineering starts. > > As I see it the 'buy time' argument for SRM is a strong one. We need to > stop temperatures increasing *whilst * we decarbonise. > > A > On Sep 11, 2013 5:36 PM, "Ken Caldeira" <kcalde...@carnegiescience.edu> > wrote: > >> We do not want to be in a situation where a solar geoengineering system >> is used to enable continued increases in CO2 emissions. >> >> Therefore, a reasonable demand is that no new smokestacks or tailpipes be >> built after a solar geoengineering system is deployed. >> >> Another way of phrasing this is to demand that new construction of all >> new CO2-emitting devices cease prior to any solar geoengineering system >> deployment. >> >> This would help address the concern that solar geoengineering could >> provide cover for continued expansion of CO2-emitting industries. >> >> Norms that would prevent simultaneous solar geoengineering deployment and >> increasing CO2 emissions would help diminish the likelihood of bad outcomes >> and could help broaden political support for solar geoengineering research. >> >> -- >> >> This would limit deployment of solar geoengineering systems to the case >> of "catastrophic" outcomes and would not permit use of solar geoengineering >> for "peak shaving" amid promises of future reductions in CO2 emissions. >> Thus, this proposal does have a substantive implications for "peak >> shaving" strategies. >> >> -- >> >> *I am floating this idea without being certain that the formulation >> presented here is the best possible formulation.* >> >> _______________ >> Ken Caldeira >> >> Carnegie Institution for Science >> Dept of Global Ecology >> 260 Panama Street, Stanford, CA 94305 USA >> +1 650 704 7212 kcalde...@carnegiescience.edu >> http://dge.stanford.edu/labs/caldeiralab @kencaldeira >> >> >> -- >> 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 geoengineering+unsubscr...@googlegroups.com. >> To post to this group, send email to geoengineering@googlegroups.com. >> Visit this group at http://groups.google.com/group/geoengineering. >> For more options, visit https://groups.google.com/groups/opt_out. >> > -- 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 geoengineering+unsubscr...@googlegroups.com. To post to this group, send email to geoengineering@googlegroups.com. Visit this group at http://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/groups/opt_out.
