Hey Stephen, Thanks for sharing the brief. It's unfortunate the COP didn't accept your submission, but I must admit it's not all too surprising. Although the work thus far on MCB is promising, you summarise one of the major issues fairly well yourself here:
"The best climate modellers give large caveats on their results and agreement between different models is not exact. The climate physics problems require new ways of using computer climate models to get a region-by-region and season-by-season transfer-function of the climate system." I guess although the research thus far is arguably quite promising, and your brief estimates are reasonably convincing, large institutions like the UN probably aren't going to consider MCB all that closely until substantially more research is done. Even then, it probably wouldn't get taken "seriously" by policymakers (much like SAI) until the IPCC starts paying more than passing remarks to it. The recent National Academies report is a promising sign, but I suspect we have a long way to go before such ideas find attentive ears in parliaments and UN assemblies. Just gotta keep at it. Cheers, -Adrian On Thursday, 3 June 2021 at 5:52:03 pm UTC+10 Stephen Salter wrote: > Hi All > > > > Attached is a short note on marine cloud brightening. It started in > response to a call from UK COP26 which had a 1000-word limit and no figures > but was rejected y them. After rejection I stretched it and added some > figures. Their email now blocks submissions. Perhaps they did not like to > be told that zero is too much. > > > > Stephen > > > > *From:* Ron Baiman <[email protected]> > *Sent:* Thursday, June 3, 2021 12:03 AM > *To:* SALTER Stephen <[email protected]>; [email protected] > *Cc:* Sev Clarke <[email protected]>; Clive Elsworth < > [email protected]>; Franz Dietrich Oeste < > [email protected]>; Renaud de RICHTER <[email protected]>; > Bru Pearce <[email protected]>; Dr Hugh Hunt <[email protected]>; > TSIAMIS Andreas <[email protected]>; Wilson Hago <[email protected]>; > Armand Neukermans <[email protected]>; Peter Wadhams < > [email protected]>; Robert Tulip <[email protected]>; John MacDonald < > [email protected]>; Oswald Petersen <[email protected]>; John > Nissen <[email protected]>; Shaun D Fitzgerald <[email protected]>; > Brian von Herzen <[email protected]>; Eduardo Greaves < > [email protected]>; Andy Meacham <[email protected]>; Peter Fiekowsky > <[email protected]>; Rocio Herbert <[email protected]>; Susan Lee < > [email protected]>; Daphne Wysham <[email protected]>; Maarten > van Herpen <[email protected]>; Berend van de Kraats <[email protected]>; > Jon Shepard <[email protected]>; Dr Vyt Garnys < > [email protected]>; Russell Seitz <[email protected]>; Dr. > Daniel Harrison <[email protected]>; Alan Gadian < > [email protected]>; Mark Stevenson <[email protected]>; Victor > Smetacek <[email protected]>; Kevin Lister <[email protected]>; Nancy > Wood <[email protected]>; Daniel Kieve <[email protected]>; Lauren Bosche < > [email protected]>; Gwen <[email protected]>; Ted Altenberg > <[email protected]>; Douglas Grandt <[email protected]>; David > S. Miller <[email protected]>; Matthew Johnson <[email protected]>; > Merve <[email protected]>; Jesper <[email protected]>; Jesper < > [email protected]>; Sir David King <[email protected]>; Philipp Thomas < > [email protected]>; PattiMichelle <[email protected]> > *Subject:* Re: The next NOAC meeting is Thurs 3rd June (Aus: Fri 4th, > 6am): > > > > *This email was sent to you by someone outside the University.* > > You should only click on links or attachments if you are certain that the > email is genuine and the content is safe. > > Stephen et al, > > > > In the event that you haven't seen this already, it seems (from my > economist/lay person perspective) that the 2019 NAS geoengineering report > does a nice job of concisely summarizing the current state of existing > research for the three example geoengineering methods that it focuses on > (SAI, MCB and CCN): > > https://www.nap.edu/read/25762/chapter/1#viii > > SAI and MCB are covered on p. 38-49, I haven't gone through the CCN > material. Figure 2.2.1 presents IPCC 2018 estimates for "Radiative forcing > of climate 1790 - 2011" that includes current (largely anthropogenic I > believe) aerosol cooling. Figure 2.3 presents a summary of pressure, > height, and latitude data on SAI and stratospheric ozone. > > > > Ron Baiman > > > > The future can be hopeful, but we must move at lightning speed to make it > so! > > > https://www.cpegonline.org/post/emergency-appeal-to-policy-makers-to-save-arctic-sea-ice-and-reverse-climate-change > > > https://www.cpegonline.org/post/arctic-sea-ice-traige-carbon-cycle-restoration-and-a-renewable-energy-and-materials-economy > > > > On Sat, May 29, 2021 at 3:25 AM SALTER Stephen <[email protected]> wrote: > > Hi All > > > > Further to Sev’s email I thought that it might be useful to see how much > salt is already being thrown up from the sea. Below is the range of > estimates for all sizes collected by Lewis and Schwartz plotted against the > date of publication. The wide scatter shows how difficult estimation is. > The blue circle is the mean. If you have a high resolution monitor you > might be able to see the thicker black line between 1959 and 2002 is what > would be released as 10 E-14 grams of salt from 1000 spray vessels work at > fill power all the year. That size is at the top of the gap in natural > aerosol between accumulation and Aitken modes. > > > > Stephen > > > > > > *Emeritus Professor of Engineering Design* > > *School of Engineering* > > *Mayfield Road* > > *Edinburgh EH9 3DW* > > *0131 650 5704* > > *https://www.youtube.com/watch?v=ZBB6WtH_Ni8 > <https://www.youtube.com/watch?v=ZBB6WtH_Ni8>* > > > > > > > > > > > > *From:* Sev Clarke <[email protected]> > *Sent:* Saturday, May 29, 2021 2:35 AM > *To:* Clive Elsworth <[email protected]> > *Cc:* Franz Dietrich Oeste <[email protected]>; Renaud de > RICHTER <[email protected]>; SALTER Stephen <[email protected]>; Bru > Pearce <[email protected]>; Dr Hugh Hunt <[email protected]>; > TSIAMIS Andreas <[email protected]>; Wilson Hago <[email protected]>; > Armand Neukermans <[email protected]>; Peter Wadhams < > [email protected]>; Robert Tulip <[email protected]>; John MacDonald < > [email protected]>; Oswald Petersen <[email protected]>; John > Nissen <[email protected]>; Shaun D Fitzgerald <[email protected]>; > Brian von Herzen <[email protected]>; Eduardo Greaves < > [email protected]>; Ron Baiman <[email protected]>; Andy Meacham < > [email protected]>; Peter Fiekowsky <[email protected]>; Rocio Herbert < > [email protected]>; Susan Lee <[email protected]>; Daphne Wysham < > [email protected]>; Maarten van Herpen <[email protected]>; > Berend van de Kraats <[email protected]>; Jon Shepard < > [email protected]>; Dr Vyt Garnys <[email protected]>; > Russell Seitz <[email protected]>; Dr. Daniel Harrison < > [email protected]>; Alan Gadian <[email protected]>; Mark > Stevenson <[email protected]>; Victor Smetacek <[email protected]>; > Kevin Lister <[email protected]>; Nancy Wood <[email protected]>; > Daniel Kieve <[email protected]>; Lauren Bosche <[email protected]>; > Gwen <[email protected]>; Ted Altenberg <[email protected]>; > Douglas Grandt <[email protected]>; David S. Miller <[email protected]>; > Matthew Johnson <[email protected]>; Merve <[email protected]>; Jesper < > [email protected]>; Jesper <[email protected]>; Sir David King < > [email protected]>; Philipp Thomas <[email protected]>; > PattiMichelle <[email protected]> > *Subject:* Re: The next NOAC meeting is Thurs 3rd June (Aus: Fri 4th, > 6am): > > > > *This email was sent to you by someone outside the University.* > > You should only click on links or attachments if you are certain that the > email is genuine and the content is safe. > > Hi Folks, > > > > The most recent update of the Modified Seatomiser concept and design is > attached for your comment and collective improvement. > > Hugh and Shaun have some good news on MCB resourcing at the Centre for > Climate Repair at Cambridge (CCRC). > > Perhaps, we might also hear from Franz and Renaud regarding what they > think of the possibility of using Seatomisers and Ice Shield wind turbines > to deliver sublimated ferric chloride nanoparticles into the atmosphere, > together with what effect these might have should they coat any nearby sea > salt aerosols (SSA) resulting from Seatomiser or wave action. > > > > > > Best wishes, > > Sev > > *William S. Clarke **BA, BSc, (Melb) MBA (Stanford)* > > T: +613 5426 1330 <+61%203%205426%201330> M: 0431 488 506 > > E: [email protected] > > Skype: willow7777777 > > P: PO Box 16, Mt Macedon, VIC 3441, Australia > > Managing Director, Winwick Business Solutions Pty Ltd. > > > > On 22 May 2021, at 8:17 pm, Clive Elsworth <[email protected]> > wrote: > > > > <Mail Attachment.ics> > > > > The University of Edinburgh is a charitable body, registered in Scotland, > with registration number SC005336. Is e buidheann carthannais a th’ ann an > Oilthigh Dhùn Èideann, clàraichte an Alba, àireamh clàraidh SC005336. > > -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/geoengineering/ef11558b-9b94-4149-9e44-3b32f7e0d922n%40googlegroups.com.
