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#Geoengineering
"Real-world geoengineering experiments revealed by UK agency"
Apropos the UK's ARIA doing crazy funding here's a link to a paper I'm a co-author on (soon to be accepted I think) where we argue against polar #geoengineering in rather strong terms.
TL;DR:
"We evaluate five highly-publicized polar 'geoengineering' proposals and point to significant issues and risks relating to technological availability, logistical feasibility, cost, predictable adverse consequences, environmental damage, scalability (in time and space), governance, and ethics. According to our assessment, no current geoengineering idea passes an objective and comprehensive test regarding its use in the coming decades. Rather, many of the proposed ideas are environmentally dangerous. Given their feasibility challenges and risks of negative consequences, these ideas should not distract from the priority to reduce greenhouse gas emissions."
https://www.europesays.com/2051432/ Could Geoengineering Really Combat Climate Change? #CarbonDioxideRemoval #Climate #ClimateChange #Environment #Geoengineering #GlobalWarming #policy #research #science #SolarRadiationManagement #technology
Could Geoengineering Really Combat Climate Change? https://www.byteseu.com/981930/ #CarbonDioxideRemoval #Climate #ClimateChange #environment #Geoengineering #GlobalWarming #Policy #Research #Science #SolarRadiationManagement #Technology
On a somewhat different theme, on Tuesday morning in Session CL3.2.4, Marie Cavitte will give an oral presentation on the many reasons the polar regions need to be safeguarded from some of the dangerous #geoengineering ideas that have been gaining a lot of publicity recently.
https://meetingorganizer.copernicus.org/EGU25/EGU25-15749.html
8/n
"New technologies are helping to regrow Arctic sea ice. But should we use them?" by @Grist - An experiment in the Arctic pumps seawater up to thicken the top of the ice layer in winter, which then naturally promotes twice the additional thickness from the bottom of the ice as well. So far it shows areas treated this way have sea ice last longer into the summer. They're studying to understand environmental side effects/impacts. https://grist.org/climate/new-technologies-are-helping-to-regrow-arctic-sea-ice/ #ClimateChange #geoengineering #science
Well, it was nice knowing you all...
The odds of some for-profit govt contractor not making a worse hot mess of the climate is pretty much zero.
Link: https://www.yahoo.com/news/experiments-dim-sun-green-light-191707344.html?ICID=ref_fark
#FYI #ClimateChat #DanMiller #DouglasMacMartin #solargeoengineering #geoengineering #amoc
(My two cents: As long as we keep igniting carbon bombs in exponential manner, no amount of geoengineering will be able to mitigate the effects.)
#Stratospheric aerosol injection "could increase the reflection of #sunlight from a cloud 
by as much as 10%, which is much larger than we anticipated" https://research.noaa.gov/injecting-light-reflecting-particles-into-the-stratosphere-could-also-make-marine-clouds-brighter
Um yeah. Sounds like a great idea! <sarc> And if it doesn't work, we can just vacuum the stuff out of the sky with a giant dustbuster! And yeah -- I totally trust secretive Israeli nuclear scientists to look out for people and the planet!
A Mysterious Startup Is Developing a New Form of Solar #Geoengineering
Stardust, an Israeli–US startup, intends to patent its unique aerosol technology for temporarily cooling the planet.
Mar 22, 2025 7:00 AM
"The company is led by CEO and cofounder Yanai Yedvab, a former deputy chief scientist at the Israel Atomic Energy Commission, which oversees the country’s clandestine nuclear program."
Read more:
https://www.wired.com/story/a-mysterious-startup-is-developing-a-new-form-of-solar-geoengineering/?utm_source=firefox-newtab-en-us
#WTF #ClimateChange #Geoengineering?
Inside a new quest to save the “doomsday glacier” - The Thwaites glacier is a fortress larger than Florida, a wall of ice that reache... - https://www.technologyreview.com/2025/03/21/1113396/inside-a-new-quest-to-save-the-doomsday-glacier/ #climatechangeandenergy #geoengineering
Klingt wie Science Fiction: Dank Solar #Geoengineering soll die #Sonne verdunkelt und so die #Erde abgekühlt werden – zumindest in der Theorie. Unternehmen wittern ein Milliardengeschäft, doch die Risiken sind nur schwer abschätzbar. @elena_matera #umwelt https://www.riffreporter.de/de/umwelt/solar-geoengineering-klima-loesung-usa-grossbritannien-trump
John Moore has been one of the main people investigating geoengineering solutions to slowing glacial retreat. It is interesting to see this paper from his group that says that geoengineering will not work to slow the retreat of Sermeq Kujalleq glacier (Jakobshavn Isbræ). https://doi.org/10.1038/s43247-025-02120-8
"That the trials are described as “small scale” is little comfort, because even small-scale trials risk developing the technology somebody else (think Musk, Trump or Putin [*]) might use for a large-scale deployment.
…
There is extreme danger in launching such field trials into an environment with neither national nor international governance in place."
* or a private consortium adverse to environmental policies.
https://www.theguardian.com/commentisfree/2021/apr/22/climate-crisis-emergency-earth-day
Excellent episode of Science In Action.
Thoughtful + alarming on #H5N1 but piece on self regulation by genetic scientists was super interesting:
#glaciology is also having this discussion, now on #geoengineering. Time for a new #Asilomar?
#SpaceJunk 
that burns 
up as it plummets to Earth is starting to pollute the #atmosphere with #metals. “It’s becoming more #reflective because there’s more metal in it, which means we’re reflecting more sunlight. So it’s #cooling 
the planet” https://news.northeastern.edu/2025/02/07/what-is-space-junk
#geoengineering #srm #SolarRadiationManagement #sai #StratosphericAerosolInjection #nsf
Is this the society part or the geoengineering part of the nsf panel getting deferred 'until further notice’?
One of my earliest, popular posts here on mastodon was about #geoengineering through #srm #SolarRadiationManagement through #sai #StratosphericAerosolInjection , or venture capitalist dudes from “Making Sunsets” tried to create fake Volcanoes in the stratosphere to cancel out some greenhouse gas fueled global warming.
https://fediscience.org/@atthenius/109577754208679865
Last fall #nsf convened a panel of experts including scientists like me plus social scientists and policy makers— virtually so very low-cost -- to figure out the impact of such a program (as well as other geoengineering ideas for carbon capture and marine cloud brightening etc.) on the world.
This email was in my inbox this morning, 'deferring' it indefinitely.
I hope someone IS INDEED convening these kinds of panels.
“Well this is modestly embarrassing.
I invited you to join a report-out from the NSF workshop you participated in last year and you kindly accepted.
You may be aware that there has been quite a lot of change at the NSF and other funding agencies following the recent alteration in administration. I have now been advised that the NSF will have to defer the report-out until further notice.
I know that the organising team are anxious to reconnect with the community and bring you up to speed. I can only offer my apologies for having wasted your time - like you I have very limited understanding of the current situation - but I will let you know as soon as things change.
With warm good wishes”
