Sorry, didn't see footnote [1]: *[1]<http://geoengineeringourclimate.com/2013/10/29/use-of-models-analogs-and-field-tests-for-geoengineering-research/#_ftnref1> In this paper we only address solar radiation management and use the term “geoengineering” to specifically refer to those sets of technologies.*
_______________ Ken Caldeira Carnegie Institution for Science Dept of Global Ecology 260 Panama Street, Stanford, CA 94305 USA +1 650 704 7212 [email protected] http://dge.stanford.edu/labs/caldeiralab https://twitter.com/KenCaldeira On Tue, Oct 29, 2013 at 9:19 AM, Ken Caldeira <[email protected] > wrote: > * > * > *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 [email protected] > http://dge.stanford.edu/labs/caldeiralab > https://twitter.com/KenCaldeira > > > > On Tue, Oct 29, 2013 at 7:55 AM, <[email protected]> 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)" <[email protected]> >> *To: *[email protected] >> *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 [email protected]. >> To post to this group, send email to [email protected]. >> 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 [email protected]. >> To post to this group, send email to [email protected]. >> 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/groups/opt_out.
