Geoengineering Test Quietly Launches Salt Crystals into Atmosphere

All Hi-Tech Developments for the Military and Civilian Sectors
Post Reply
User avatar
jemhouston
Posts: 3265
Joined: Fri Nov 18, 2022 12:38 am

Geoengineering Test Quietly Launches Salt Crystals into Atmosphere

Post by jemhouston »

Isn't this how Snowpiercer started?


https://www.scientificamerican.com/arti ... tmosphere/

The Twitchy thread https://twitchy.com/amy-curtis/2024/04/ ... g-n2394816
Geoengineering Test Quietly Launches Salt Crystals into Atmosphere

A solar geoengineering experiment in San Francisco could lead to brighter clouds that reflect sunlight. The risks are numerous

By Corbin Hiar & E&E News
White ruffle clouds in stratosphere background.

An aerial view of a layer of stratocumulus clouds.

SubstanceP/Getty Images

CLIMATEWIRE | The nation's first outdoor test to limit global warming by increasing cloud cover launched Tuesday from the deck of a decommissioned aircraft carrier in the San Francisco Bay.

The experiment, which organizers didn't widely announce to avoid public backlash, marks the acceleration of a contentious field of research known as solar radiation modification. The concept involves shooting substances such as aerosols into the sky to reflect sunlight away from the Earth.

The move led by researchers at the University of Washington has renewed questions about how to effectively and ethically study promising climate technologies that could also harm communities and ecosystems in unexpected ways. The experiment is spraying microscopic salt particles into the air, and the secrecy surrounding its timing caught even some experts off guard.

"Since this experiment was kept under wraps until the test started, we are eager to see how public engagement is being planned and who will be involved," said Shuchi Talati, the executive director of the Alliance for Just Deliberation on Solar Geoengineering, a nonprofit that seeks to include developing countries in decisions about solar modification, also known as geoengineering.

"While it complies with all current regulatory requirements, there is a clear need to reexamine what a strong regulatory framework must look like in a world where [solar radiation modification] experimentation is happening," she added.

The Coastal Atmospheric Aerosol Research and Engagement, or CAARE, project is using specially built sprayers to shoot trillions of sea salt particles into the sky in an effort to increase the density — and reflective capacity — of marine clouds. The experiment is taking place, when conditions permit, atop the USS Hornet Sea, Air & Space Museum in Alameda, California, and will run through the end of May, according to a weather modification form the team filed with federal regulators.

The project comes as global heat continues to obliterate monthly and yearly temperature records and amid growing interest in solar radiation modification from Silicon Valley funders and some environmental groups. It also follows the termination of a Harvard University experiment last month that planned to inject reflective aerosols into the stratosphere near Sweden before it was canceled after encountering opposition from Indigenous groups.

Solar radiation modification is controversial because widespread use of technologies like marine cloud brightening could alter weather patterns in unclear ways and potentially limit the productivity of fisheries and farms. It also wouldn't address the main cause of climate change — the use of fossil fuels — and could lead to a catastrophic spike in global temperatures if major geoengineering activities were discontinued before greenhouse gases decrease to manageable levels.

The University of Washington and SilverLining, a geoengineering research advocacy group involved in the CAARE project, declined interview requests. The mayor of Alameda, where the experiment is being conducted, didn't respond to emailed questions about the project.
Curated by Our Editors
User avatar
Pdf27
Posts: 642
Joined: Thu Nov 17, 2022 10:49 pm

Re: Geoengineering Test Quietly Launches Salt Crystals into Atmosphere

Post by Pdf27 »

We've been living through one for the past few years. Cargo ships were banned from using the very dirtiest high sulphur fuel in 2020, with the result that SO2 emissions dropped off by about 8 million tonnes/year. This appears to be having measurable effects on climate - including 2023 being extremely hot worldwide - and this is backed up by evidence of reduced cloud formation on shipping routes, etc.

This experiment is about six orders of magnitude smaller than the one that we've been living through worldwide over the past few years - so about as meaningful as a fart in a hurricane.
War is less costly than servitude. The choice is always between Verdun and Dachau. - Jean Dutourd
Rocket J Squrriel
Posts: 407
Joined: Thu Nov 17, 2022 5:23 pm

Re: Geoengineering Test Quietly Launches Salt Crystals into Atmosphere

Post by Rocket J Squrriel »

The giant amount of water vapor lifted up into the atmosphere by the Tonga volcano going BOOM didn't help matters much.
User avatar
PLB
Posts: 84
Joined: Thu Nov 17, 2022 5:20 pm

Re: Geoengineering Test Quietly Launches Salt Crystals into Atmosphere

Post by PLB »

Ethically, this is about on par with the gain of function research done in Wuhan. They are messing with sh!t they don't understand, can't control and could potentially affect people world wide. To cure a problem they have no control over.

Paul
User avatar
Pdf27
Posts: 642
Joined: Thu Nov 17, 2022 10:49 pm

Re: Geoengineering Test Quietly Launches Salt Crystals into Atmosphere

Post by Pdf27 »

PLB wrote: Sun Apr 07, 2024 11:49 pmEthically, this is about on par with the gain of function research done in Wuhan. They are messing with sh!t they don't understand, can't control and could potentially affect people world wide. To cure a problem they have no control over.

Paul
Uh... did you read what I wrote earlier? It's functionally equivalent to and six orders of magnitude smaller than (in the opposite direction) to a change that was made worldwide in 2020. Even that change to bunker fuel is tiny compared to the impact of commercial aviation worldwide: every single flight you take, your personal contribution to shading the atmosphere will be greater than the sum total from this research, and you aren't even trying to understand it.

There are some concerns about large-scale geoengineering, mostly relating to the fact that we haven't done enough experiments like this to model it accurately. There are plenty of large scale events with similar or greater impact (the volcano mentioned by RJS, commercial shipping and aviation, urban heat island effect, etc.) which work in roughly the same way, but they aren't being carried out in controlled conditions so we don't yet have sufficient data from them.
War is less costly than servitude. The choice is always between Verdun and Dachau. - Jean Dutourd
David Newton
Posts: 766
Joined: Thu Nov 17, 2022 9:37 am

Re: Geoengineering Test Quietly Launches Salt Crystals into Atmosphere

Post by David Newton »

Then of course we have the single, biggest geoengineering experiment of all time: COVID lockdown. That made an enormous, and again easily measurable, difference to the climate. The huge reduction in aircraft contrails had a radical effect on cloud cover for example.
User avatar
PLB
Posts: 84
Joined: Thu Nov 17, 2022 5:20 pm

Re: Geoengineering Test Quietly Launches Salt Crystals into Atmosphere

Post by PLB »

Yeah, I saw what you wrote, and don't assume I don't understand. This experiment is designed to test the waters, not the air. They are looking to see how much push back they get. Or they are saying "screw the push back we got in Sweden, we are doing it any way". Once they review their own results they will announce it was positive and needs more experimenting.

From the article you linked
Sulphur particles contained in ships’ exhaust fumes have been counteracting some of the warming coming from greenhouse gases. But lowering the sulphur content of marine fuel has weakened the masking effect, effectively giving a boost to warming.

Some researchers have proposed that the drop in SO2 as a result of the IMO’s clean air regulations could be behind a recent spike in global sea surface temperature.

Carbon Brief analysis shows that the likely side-effect of the 2020 regulations to cut air pollution from shipping is to increase global temperatures by around 0.05C by 2050. This is equivalent to approximately two additional years of emissions.
My contention is they don't know what the hell they are doing, besides trying to add gravitas to a failing claim about man made global warming. Seems to me they could look at the results of the So2 elimination and say maybe we should hold off on this until we know more. Ignoring results that don't follow the agenda is a trade mark for this group.

Paul
Post Reply