[geo] Utilizing AI emulators to Model Stratospheric Aerosol Injections and their Effect on Climate

https://meetingorganizer.copernicus.org/EGU23/EGU23-8496.html *Abstract* Eshaan Agrawal and Christian Schroder de Witt How to cite: Agrawal, E. and Schroder de Witt, C.: Utilizing AI emulators to Model Stratospheric Aerosol Injections and their Effect on Climate, EGU General Assembly 2023 , Vienn

[geo] Re: [HCA-list] Re: Make Sunsets stimulates more debate over "Geoengineering"- PT Barnum further vindicated!

Ron- “none of us has a crystal ball”—That’s false in this sense: We know that climate disruptions are going to get worse on today’s path. What else do you need to know about the predictable future? That’s the trajectory we’re on. Are you saying that you don’t know how you want SRM to be implemen

[geo] Re: [HCA-list] Re: Make Sunsets stimulates more debate over "Geoengineering"- PT Barnum further vindicated!

Peter, Thank you for the question. Sometimes political provocations are important to stimulate public action (as I expect you well know!). I also believe that Make Sunsets could morph into a useful and effective private direct climate cooling initiative, either within a carefully publicly regula

[geo] Re: [HCA-list] Re: Make Sunsets stimulates more debate over "Geoengineering"- PT Barnum further vindicated!

Ron- Pardon me for asking, but: 1. What exactly do you mean by “all hands on deck”? Who? Where? Why? When? 2. If you were successful, what outcome would we see? Nevermind the how. We know a heck of a lot about SAI, MCB, and other techniques. Please explain the who, what, when, where, and w

[geo] Re: Make Sunsets stimulates more debate over "Geoengineering"- PT Barnum further vindicated!

Thank you Robert, Achim and Paul, Needless to say, I agree. As expressed in my Make Sunsets blog, I believe that we need “all hands on deck” on cooling. Public, private, non-profit initiatives all have I think have different strengths that can help move direct climate cooling forward at speed a

Re: [geo] SATAN

Doug, I'll answer your points in turn below. I've removed Dan from the cc list as he wished to withdraw from the discussion. Andrew On Thu, 2 Mar 2023, 14:30 Douglas MacMartin, wrote: > Andrew, > > > > I second Dan, and your juvenile response to him regarding your choice of > project name sho

RE: [geo] SATAN

Andrew, I second Dan, and your juvenile response to him regarding your choice of project name should leave no doubt on anyone’s part that you don’t take this subject seriously. Had you actually been paying attention to the field as you claim to have been, you would be aware that there are broa

[geo] Towards a better understanding of the physical risks and tradeoffs of solar geoengineering

https://meetingorganizer.copernicus.org/EGU23/EGU23-12811.html *Authors* Matthew Henry 1, Jim Haywood 1,2, and Andy Jones

Re: [geo] SATAN

All UK balloons have a parachute already. The speed of ascent is insufficient to inflate them. On Thu, 2 Mar 2023, 10:44 Stephen Salter, wrote: > Andrew > > What about an upside down parachute deployed at the right time? > > Stephen > > *From:* Andrew Lockley > *Sent:* 02 March 2023 09:50 > *To

RE: [geo] SATAN

Andrew What about an upside down parachute deployed at the right time? Stephen From: Andrew Lockley Sent: 02 March 2023 09:50 To: Stephen Salter Cc: geoengineering Subject: Re: [geo] SATAN This email was sent to you by someone outside the University. You should only click on links or attachment

Re: [geo] SATAN

Minimum ascent speed is set by A) need to clear commercial airspace B) need to predict flight path C) need to safely retrieve the balloons A rising balloon expands. A fast-rising (ie safe) balloon cannot be vented fast enough to overcome this - it is launched above its "escape velocity". The exper

RE: [geo] SATAN

Andrew, Please can you expand a bit regarding your comment of unsafe slow assent vs difficulty venting. This sounds like something of importance. I have always assumed that venting or slowing down the speed would be an option. Understanding this sounds quite important. I would note that weat

Re: [geo] SATAN

One of the key research findings was that the volume of the gas in the balloon rises quicker than the vent or pump can dispose of the gas. It can't be stopped. You can't recover the canopies unless you slow the ascent to a unsafe speed. On Thu, 2 Mar 2023, 09:24 Stephen Salter, wrote: > Hi All >

RE: [geo] SATAN

Hi All You could delay balloons bursting by fitting a pressure relief valve to vent gas when the outside pressure fell below some chosen value. Stephen Emeritus Professor of Engineering Design School of Engineering University of Edinburgh Mayfield Road Edinburgh EH9 3DW Scotland 0131 650 5704 or

Re: [geo] SATAN

Dan, Thanks for raising your concerns, although an initial private discussion would have been preferred. I believe you have had sight of the abstract a few weeks ago, via the GeoMIP conference submission. It's therefore surprising that you've chosen now to raise this issue. Did you have any conce

Re: [geo] SATAN

Glad you had fun, Andrew.For me, this is clear proof of your unseriousness and childishness - not to mention the overall threat you pose to this research field as a whole towards any kind of legitimacy.I personally don’t want to be associated even remotely with anything you do now or in the future,

[geo] SATAN

https://www.technologyreview.com/2023/03/01/1069283/researchers-launched-a-solar-geoengineering-test-flight-in-the-uk-last-fall/ Researchers launched a solar geoengineering test flight in the UK last fall The experiment, largely designed to test equipment, took place despite deep concerns about th