[geo] RE: Marine Cloud Brightening for the Southern Ocean

Hi All Ye gives welcome and rare support for work on marine cloud brightening but it is not quite accurate to say ‘real-time hurricane management’. If you want to moderate a hurricane tomorrow you are much too late. You should have started last November and recorded the trajectory of sea

Re: [EXTERNAL] [geo] Re: Marine Cloud Brightening for the Southern Ocean

' Subject: [EXTERNAL] [geo] Re: Marine Cloud Brightening for the Southern Ocean As Daniel mentioned, Australia is well placed to build upon its existing support<https://www.nature.com/articles/d41586-021-02290-3> for marine cloud brightening for the Great Barrier Reef. Australia could seek interna

[geo] Re: Marine Cloud Brightening for the Southern Ocean

As Daniel mentioned, Australia is well placed to build upon its existing support for marine cloud brightening for the Great Barrier Reef. Australia could seek international agreement to test MCB in international waters, working with

[geo] Re: Marine Cloud Brightening

Hi Clive-- Because the Sun is only up in the Arctic for a few months during the year, there is no need to have the aerosol stay up through the whole year--and in the winter the stratosphere gets so cold that the particles contribute to ozone depletion, so one does not want to be increasing

[geo] RE: Marine Cloud Brightening

Clive Yes but if the life is shorter you need more aircraft. Stephen From: healthy-planet-action-coalit...@googlegroups.com On Behalf Of Clive Elsworth Sent: Sunday, January 30, 2022 12:35 PM To: SALTER Stephen Cc: Ron Baiman ; Sev Clarke ; Peter Wadhams ; Chris Vivian ; H simmens ; John

[geo] Re: Marine Cloud Brightening

Dear Stephen--The atmospheric transport of gases and aerosols differs. For gases, atmospheric mixing dominates any consideration of different molecular weights up to altitudes of five to ten tens of kilometers. For aerosols, their mass and size introduce a fall rate that, depending on size,

[geo] RE: Marine Cloud Brightening

Clive There is not much rain in the stratosphere where SO2 will be injected. Stephen. From: healthy-planet-action-coalit...@googlegroups.com On Behalf Of Clive Elsworth Sent: Sunday, January 30, 2022 11:59 AM To: SALTER Stephen Cc: Ron Baiman ; Sev Clarke ; Peter Wadhams ; Chris Vivian ; H

[geo] RE: Marine Cloud Brightening

Clive How do you think that stuff got up to the Ozone hole? Stephen From: healthy-planet-action-coalit...@googlegroups.com On Behalf Of Clive Elsworth Sent: Saturday, January 29, 2022 11:22 PM To: SALTER Stephen Cc: Ron Baiman ; Sev Clarke ; Peter Wadhams ; Chris Vivian ; H simmens ; John

Re: [geo] Re: Marine cloud brightening coagulation comment - ACPD

Hi All This paper raises some interesting questions. They are using drop sizes from 10 nanometres to 10 microns. We hope get as close to a mono-disperse spray of 0.8 microns as is possible. If drag and inertia of drops are close, the relative velocities due to local turbulence will be low

[geo] Re: Marine Cloud Brightening pros cons. Alan Robock criteria

Dear John, We are designing an MCB GeoMIP experiment so we can see how robust the results are from the climate models that have already done these experiments, but all differently. In theory, there would be both benefits and risks, and these must be quantified. From my list, you can cross

RE: [geo] Re: Marine Cloud Brightening pros cons. Alan Robock criteria

2013 17:09 To: John Latham Cc: geoengineering@googlegroups.com Subject: [geo] Re: Marine Cloud Brightening pros cons. Alan Robock criteria Dear John, We are designing an MCB GeoMIP experiment so we can see how robust the results are from the climate models that have already done these experiments

[geo] RE: Marine Cloud Brightening pros cons. Alan Robock criteria

Hello Olaf, I should have mentioned that, re hurricanes coral, our idea is to maintain the SST's in the appropriate areas at current values, using MCB to counter CO2 increase. Trying to reduce SSTs below current values is a different and possibly dangerous game, which we are not considering.

RE: [geo] Re: Marine Cloud Brightening pros cons. Alan Robock criteria

, June 03, 2013 11:06 AM To: geoengineering@googlegroups.com Subject: Re: [geo] Re: Marine Cloud Brightening pros cons. Alan Robock criteria Dear Alan I was pleased to hear that you will be looking at marine cloud brightening and look forward to seeing your results. I attach a note