(04-07-2024, 11:52 AM)ArMaP Wrote: I don't know how they are going to do it, so I cannot answer that.


I don't think they can "control" it, but knowing (more or less) how things work it's not that difficult to know where to do the spraying for it to finally fall over the ocean.

But, even if it falls over land, I suppose it depends on how much salt they use on their spray, as the idea appears (to me) to be using it on already existing clouds to make them more reflective, so I don't think the salt will be in a concentration high enough to do any damage.

(04-10-2024, 08:10 AM)Essan Wrote: More on MCB here:  https://royalsocietypublishing.org/doi/10.1098/rsta.2012.0086

Quote:To perform these studies, the CARI system is being used to generate a plume of sea salt aerosols that flow down wind across a series of instrument risers containing sophisticated and sensitive instruments for measuring aerosols over a wide range of sizes and concentrations (see image below).  On these and at other stations, meteorology measurements are also taken. Plume generation occurs in brief intervals (generally 5-30 min) during periods of favorable meteorological conditions. Background aerosols are captured in other periods. These measurements will be taken periodically over time to capture findings in different seasons and meteorological conditions.

A Scientific Review Board of senior scientists reviewed the study design with reference to its scientific value, the suitability and feasibility of planned observations, modeling and analyses, identification of any measurable physical risks from aerosol output, and any additional concerns. They found the study design to be valuable, well-structured, feasible and without identifiable physical risks.  A report describing their findings is available here.

(04-10-2024, 10:27 AM)quintessentone Wrote: The aerosols will be using sea salt which is a natural substance albeit if they are injecting more sea salt into the environment that may be an issue or are they using existing sea salt from the ocean, whereby with this process it will simply be put back into the same environment (?)

(04-10-2024, 03:18 PM)Maxmars Wrote: Not to be an alarmist, because this exercise may be as harmless as they claim, however nothing aerosolized and sprayed into the atmosphere simply "stays" where it is sprayed.  Besides the obvious, sea salt constitutes a major corrosive force, especially for metal objects like cars, bridges, ships, etc. 

Quote:Also, while it may be a technical non-issue, breathing higher concentrations of salt in the air might not be medically "inert" as it may have some negative health effects... though of course, I would not wish that to be so.

(04-10-2024, 03:18 PM)Maxmars Wrote: Not to be an alarmist, because this exercise may be as harmless as they claim, however nothing aerosolized and sprayed into the atmosphere simply "stays" where it is sprayed.  Besides the obvious, sea salt constitutes a major corrosive force, especially for metal objects like cars, bridges, ships, etc. 

Also, while it may be a technical non-issue, breathing higher concentrations of salt in the air might not be medically "inert" as it may have some negative health effects... though of course, I would not wish that to be so.

As it stands, we are still not well versed enough in the science to be casually "trying anything" to "mitigate" the overall climate situation.

This entire 'cloud brightening' exercise is already considered as to have only a slight effect on the climate at best, so who deemed it a "worthwhile" shot in the dark? .... Let me guess... research grant recipients...

(04-11-2024, 08:44 AM)Essan Wrote: Well, as as result of this (very small scale) experiment, we'll hopefully better know what unintended consequence the process may have - and, indeed, whether it would be practical to carry out at all.    That's the purpose of experiments.

(04-11-2024, 10:14 AM)quintessentone Wrote: Absolutely and the other choice is doing nothing.