New study: ‘Sky is not the limit’ for solar geoengineering
There are practical limits to the height at which aerosols may be deployed in the atmosphere to deflect incoming sunlight and countervail ‘global warming’.
Very high-altitude injections might be more effective, but such climate intervention comes with substantially increased costs and safety risks, according to new research published today in Environmental Research Communications.
Following a prominent study in 2018 that clarified the lofting technologies by which it would be feasible to undertake solar geoengineering, the new report is the first to assess the safety and cost-effectiveness of deployment at an altitude of 25 km.
The report responds directly to a question posed by the US National Academy of Science, Engineering, and Medicine in a landmark study in March 2021 which recognized the need for additional research on the viability of depositing aerosols well above 20 km.
Wake Smith, the lead author of the study, says: “This conclusion should alter how climate intervention models are run globally and shows that practical limits need to be weighed against radiative efficacy in designing solar geoengineering programs.”
Several prominent studies over the last decade have noted that deployment of stratospheric aerosols at an altitude of 25 km would be more effective than at 20 km, causing climate modelers to commonly incorporate such lofty deployments into their studies.
For reference, airliners and military jets routinely cruise near 10 km, whereas 20 km is the realm of high-flying spy planes and drones.
Planning to fly hundreds of thousands of annual solar geoengineering deployment flights to altitudes inaccessible even to elite spy planes would not only substantially increase costs, but would pose unacceptable safety risks for flight crews, aircraft, and the uninvolved public on the ground.
According to Smith, “There is a ceiling in the sky above which traditional aircraft cannot operate, and 25 km is above it.”
See more here: phys.org
Header image: Live Science
Bold emphasis added
Editor’s note: Dimming the Sun would result in reduced photosynthesis, which would reduce oxygen production, reduce crop productivity, and increase the amount of CO2, as less would be absorbed by greenery. It could also cause a dramatic reduction in temperature, possibly enough to plunge the Earth into another ice age.
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Andrew
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Planes generally tend to spray between 28,000 ft and 41,000 ft, with the averages being 30,000 ft to 39,000 ft, so just what are their tasks, at these altitudes if no for Solar Geoengineering?
There is no “Global Warming”. If anything, the temperature is a damned sight colder of late. “Climate Change” happens in cycles and it is unlikely that there are any catastrophic changes for the foreseeable future and, in my case, I’d welcome a few more degrees.
As for computer models, look at the damage those have done over the years.
I say, bring back pen & paper and good old-fashioned Commonsense. The whole damned World has gone insane. Stop the Genocide & Culling.
CO2 is a “Life Gas” and there is no excess in the atmosphere. The more, the better for the plants and more Oxygen for us “Livestock”.
“Chemtrails”? We need “NO”, not “More”.
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coronistan.blogspot.com
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This insane bull crap as to stop immediately.
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Artelia
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It tends to be very cold in the sun and the sky has a metallic sheen, particularly apparent AN HOUR BEFORE SUNSET AND AN HOUR AFTER SUNRISE, on the horizons in every direction. Why should we have solar radiation blocking in the winter? It used to get warm in the winter sunshine and on winter days by the mid afternoon it felt pleasant in the sunshine. Nowadays the sun tends to not feel very warm and solar panels are not generating as much electricity as they could if the spraying were to cease.
Climate change has obviously occurred from us burning far less coal in Europe. The skies should be clearer and cleaner so more sunlight should be getting through, apart from the Solar radiation management.
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