* * *However, outdoor [geoengineering] experiments ... should be regulated, even if these experiments are for scientific purposes.*
The authors do not define 'geoengineering'. Are they including things like afforestation and biomass energy with carbon capture and storage in their definition? Have they considered measures short of regulation, such as professoinal norms, a list of considerations for proposal review panels, etc? _______________ 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 https://twitter.com/KenCaldeira On Tue, Oct 29, 2013 at 7:55 AM, <euggor...@comcast.net> wrote: > Thanks for the information. I have read the article and applaud. > > > > I wonder why the authors did not consider local isolated tests of the > sulfur approach. As I recall the 0.5 C drop following the volcanic eruption > was worldwide and lasted one to two years. It took time for the sulfur to > spread. Why not a local, immediate, short term experiment before the > sulfur has had time to spread significantly? It would give an idea of > possible greater magnitude but with reduced risk except locally. It would > avoid other effects from a volcanic eruption. > > > > -gene > > ------------------------------ > > *From: *"Geoengineering Our Climate (eds. Blackstock, Miller and Rayner)" > <geoengineeringourclim...@gmail.com> > *To: *geoengineering@googlegroups.com > *Sent: *Tuesday, October 29, 2013 9:50:16 AM > *Subject: *[geo] Robock and Kravitz on "Use of Models, Analogs and > Field-tests for Geoengineering Research" > > Dear colleagues, > > For the "Geoengineering Our Climate?" working paper series, Alan Robock > (Rutgers) and Ben Kravitz (PNNL) have written an opinion article *"Use of > Models, Analogs and Field-tests for Geoengineering Research"*. Below is > an excerpt from the introduction (in lieu of an abstract): > > " ...How then can geoengineering be studied? One obvious technique is to >> use global climate models (“indoor” research) to simulate various proposed >> geoengineering schemes, such as adding aerosols to the stratosphere to >> reflect incoming sunlight or adding sea salt to marine stratus clouds to >> brighten them. Since these two techniques mimic volcanic eruptions and >> ship tracks, another suggestion is to study those phenomena as analogs to >> geoengineering. There have also been several suggestions for field >> experiments, as well as some small scale tests (“outdoor” research), to >> learn about geoengineering. In this article, we review these different >> research methods, commenting on their utility, safety, ethics, and >> governance. We also discuss natural analogs for geoengineering, such as >> the 1991 eruption of Mt. Pinatubo and the observation of ship tracks, >> highlighting both their utility in learning about the effects of >> geoengineering and their limits in providing knowledge. As we will >> demonstrate, geoengineering research is inseparable from climate research." >> > > The article can be read and downloaded (as PDF) at: > http://geoengineeringourclimate.com/2013/10/29/use-of-models-analogs-and-field-tests-for-geoengineering-research/ > . > > Best wishes to all, > > Sean Low > > -- > 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. > -- 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.
