Clive Yes but if the life is shorter you need more aircraft. Stephen From: healthy-planet-action-coalit...@googlegroups.com <healthy-planet-action-coalit...@googlegroups.com> On Behalf Of Clive Elsworth Sent: Sunday, January 30, 2022 12:35 PM To: SALTER Stephen <s.sal...@ed.ac.uk> Cc: Ron Baiman <rpbai...@gmail.com>; Sev Clarke <sevcla...@me.com>; Peter Wadhams <peter.wadh...@gmail.com>; Chris Vivian <chris.vivi...@btinternet.com>; H simmens <hsimm...@gmail.com>; John Nissen <johnnissen2...@gmail.com>; Robert Tulip <rtulip2...@yahoo.com.au>; geoengineering <geoengineering@googlegroups.com>; Planetary Restoration <planetary-restorat...@googlegroups.com>; Shaun Fitzgerald <sd...@cam.ac.uk>; Hugh.Hunt <he...@cam.ac.uk>; Daphne Wysham <dap...@methaneaction.org>; healthy-planet-action-coalition <healthy-planet-action-coalit...@googlegroups.com>; Dermott Reilly <dermott.rei...@nanolandglobal.com> Subject: RE: Marine Cloud Brightening
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. But John is saying they could cool the Arctic with SAI injected below the stratosphere. On 30/01/2022 12:09 SALTER Stephen <s.sal...@ed.ac.uk<mailto:s.sal...@ed.ac.uk>> wrote: Clive There is not much rain in the stratosphere where SO2 will be injected. Stephen. From: healthy-planet-action-coalit...@googlegroups.com<mailto:healthy-planet-action-coalit...@googlegroups.com> <healthy-planet-action-coalit...@googlegroups.com<mailto:healthy-planet-action-coalit...@googlegroups.com>> On Behalf Of Clive Elsworth Sent: Sunday, January 30, 2022 11:59 AM To: SALTER Stephen <s.sal...@ed.ac.uk<mailto:s.sal...@ed.ac.uk>> Cc: Ron Baiman <rpbai...@gmail.com<mailto:rpbai...@gmail.com>>; Sev Clarke <sevcla...@me.com<mailto:sevcla...@me.com>>; Peter Wadhams <peter.wadh...@gmail.com<mailto:peter.wadh...@gmail.com>>; Chris Vivian <chris.vivi...@btinternet.com<mailto:chris.vivi...@btinternet.com>>; H simmens <hsimm...@gmail.com<mailto:hsimm...@gmail.com>>; John Nissen <johnnissen2...@gmail.com<mailto:johnnissen2...@gmail.com>>; Robert Tulip <rtulip2...@yahoo.com.au<mailto:rtulip2...@yahoo.com.au>>; geoengineering <geoengineering@googlegroups.com<mailto:geoengineering@googlegroups.com>>; Planetary Restoration <planetary-restorat...@googlegroups.com<mailto:planetary-restorat...@googlegroups.com>>; Shaun Fitzgerald <sd...@cam.ac.uk<mailto:sd...@cam.ac.uk>>; Hugh.Hunt <he...@cam.ac.uk<mailto:he...@cam.ac.uk>>; Daphne Wysham <dap...@methaneaction.org<mailto:dap...@methaneaction.org>>; healthy-planet-action-coalition <healthy-planet-action-coalit...@googlegroups.com<mailto:healthy-planet-action-coalit...@googlegroups.com>>; Dermott Reilly <dermott.rei...@nanolandglobal.com<mailto:dermott.rei...@nanolandglobal.com>> Subject: RE: Marine Cloud Brightening 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 As I understand it SO2 gets rained out more readily than CFCs, which eventually drift into the stratosphere. CFCs are stable in the troposphere and only get destroyed in the stratosphere by the more intense UV. Clive On 30/01/2022 09:50 SALTER Stephen <s.sal...@ed.ac.uk<mailto:s.sal...@ed.ac.uk>> wrote: Clive How do you think that stuff got up to the Ozone hole? Stephen From: healthy-planet-action-coalit...@googlegroups.com<mailto:healthy-planet-action-coalit...@googlegroups.com> <healthy-planet-action-coalit...@googlegroups.com<mailto:healthy-planet-action-coalit...@googlegroups.com>> On Behalf Of Clive Elsworth Sent: Saturday, January 29, 2022 11:22 PM To: SALTER Stephen <s.sal...@ed.ac.uk<mailto:s.sal...@ed.ac.uk>> Cc: Ron Baiman <rpbai...@gmail.com<mailto:rpbai...@gmail.com>>; Sev Clarke <sevcla...@me.com<mailto:sevcla...@me.com>>; Peter Wadhams <peter.wadh...@gmail.com<mailto:peter.wadh...@gmail.com>>; Chris Vivian <chris.vivi...@btinternet.com<mailto:chris.vivi...@btinternet.com>>; H simmens <hsimm...@gmail.com<mailto:hsimm...@gmail.com>>; John Nissen <johnnissen2...@gmail.com<mailto:johnnissen2...@gmail.com>>; Robert Tulip <rtulip2...@yahoo.com.au<mailto:rtulip2...@yahoo.com.au>>; geoengineering <geoengineering@googlegroups.com<mailto:geoengineering@googlegroups.com>>; Planetary Restoration <planetary-restorat...@googlegroups.com<mailto:planetary-restorat...@googlegroups.com>>; Shaun Fitzgerald <sd...@cam.ac.uk<mailto:sd...@cam.ac.uk>>; Hugh.Hunt <he...@cam.ac.uk<mailto:he...@cam.ac.uk>>; Daphne Wysham <dap...@methaneaction.org<mailto:dap...@methaneaction.org>>; healthy-planet-action-coalition <healthy-planet-action-coalit...@googlegroups.com<mailto:healthy-planet-action-coalit...@googlegroups.com>>; Dermott Reilly <dermott.rei...@nanolandglobal.com<mailto:dermott.rei...@nanolandglobal.com>> Subject: Marine Cloud Brightening 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 I confess I'm not sufficiently familiar with atmospheric physics to say whether aerosol particles released under the Arctic stratosphere would substantially move up into it. Either way, Marine Cloud Brightening seems the safer option to me for the reasons you have given on numerous occasions. The question is if it can be ready in time and with sufficient social license. I think you're aware of the University of Washington's MCB work: https://faculty.washington.edu/robwood2/wordpress/?page_id=954 The video on that page is high quality and only about a month old. I wonder if some collaboration might help speed things up? Clive On 29/01/2022 21:03 SALTER Stephen <s.sal...@ed.ac.uk<mailto:s.sal...@ed.ac.uk>> wrote: Clive Here is something about the Brewer Dobson velocity. Stephen -- You received this message because you are subscribed to the Google Groups "Healthy Planet Action Coalition" group. To unsubscribe from this group and stop receiving emails from it, send an email to healthy-planet-action-coalition+unsubscr...@googlegroups.com<mailto:healthy-planet-action-coalition+unsubscr...@googlegroups.com>. To view this discussion on the web visit https://groups.google.com/d/msgid/healthy-planet-action-coalition/588600881.789124.1643498544728%40email.ionos.co.uk<https://groups.google.com/d/msgid/healthy-planet-action-coalition/588600881.789124.1643498544728%40email.ionos.co.uk?utm_medium=email&utm_source=footer>. For more options, visit https://groups.google.com/d/optout. The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336. 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