Both SAI and MCB probably need of order of 20 years of research before we could make reasonably informed decisions; both have a long list of unknowns. (In the case of MCB, we don't even really know if it "works" in any meaningful sense of the word, because cloud-aerosol interactions are too uncertain today, so we really don't know whether there is a useful fraction of cloud meteorological conditions in which the albedo is significantly enhanced. We should all really really hope that it doesn't work very well, because if it doesn't, that means the indirect aerosol effect is smaller than current best guess and climate sensitivity will be on the low end...)
(And, of course, at the current level of worldwide funding, that "20" above is probably off by a few orders of magnitude.) -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Michael Hayes Sent: Saturday, November 04, 2017 10:00 AM To: geoengineering <[email protected]> Subject: Re: [geo] Can anyone offer a CE perspective on this SLR article? Holly and List, The use of sulfur needs proper polar field level testing. Testing is planned yet may not be done in areas prone to Polar Stratospheric Cloud formation. Time of the season is also of the essence for testing. Until that is done, SAI has a large question to answer; in general terms. MCB, used in key areas, is a critical first step. There should be no deflection at that engineering level. Once MCB paves the way, other marine capable systems can gain traction. What marine engineering minded person or institution would not give Steven's word heavy weight? This is a marine issue. -- 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. -- 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.
