But a little pointless if the new topics don't get into new threads.
First off it has been since late 1940s that we have been experimenting with weather modification. So I am not sure what the 14 yrs thing is?? anyone?
Hi Mike I am not sure but maybe we can make a new thread regarding the real facts behind weather modification via airplanes. We use rockets also but thats something for another discussion. You guys are doing great work here. glad to see rational people discussing this stuff. JREF maybe a good source for some ammo to fight off the chemtrail theorists.
I have sen a lot of debate about some really wild chemicals the chemtrail people claim is being used. BUt I have not seen anyone point to the many companies that actually do weather modification. First thing they tell you on most the sites who have FAQ....is that weather modification is very limited in what it can and can't do.
The reality is the materials being used by these companies is nothing like the radical claims of the lopsided argument.
"What are the most commonly used seeding materials?
The materials used in cloud seeding include two primary categories, tied to the type of precipitation process involved. One category includes those which act as glaciogenic (ice-forming) agents, such as silver iodide, dry ice and compressed liquid propane or carbon dioxide, which are appropriate in cloud systems where the precipitation process is primarily cold(colder than freezing). Of the ice-forming materials, the most commonly used is silver iodide. The second major category is focused on cloud systems where the warm (coalescence) process predominates. In those environments, hygroscopic (water attracting) materials such as salt, urea and ammonium nitrate can be utilized. Of the hygroscopic materials, the most commonly used are salts."
http://www.nawcinc.com/wmfaq.html
So as you can see unless you are afraid that you already have too much salt in the diet maybe weather modification is not the boogieman.
I am sure someone will say OMG Silver Iodide !!! However, the permissible exposure limit is 0.01 mg / m3 TWA. Which is a HELLA lot more than any air samples under areas were this is being used for weather modification. Also lets be clear this is used to promote rain so it will end up attracting water vapor to form ice then rain, the respirable levels would be even less. The only real concern could arise from it entering the water or food chain, but again the levels are so miniscule that I see no significant health risks.
MSDS for Silver Iodide - click here
While these are the normal materials we use for weather modification they are not the only ones ever used. Many smart people have suggested some very wild ideas. Places like geoengineeringwatch.org
BTW I own a company that does industrial hygiene and environmental consulting. I am certified in everything from asbestos to nuclear (no joke). I have 30 years experience my clients have included JPL/NASA, Liton, BP, Edwards AFB, Point Magu, Mir Mar, Point Hune, Vandenberg, Homeland Security, and many other government, commercial, and private clients. I was raised around airplanes, I and most my close friends are pilots. I also fly Soaring planes and even they can have contrails. However the contrails from soaring planes do not last very long in most cases. It is the particulates and the turbulent air currents that cause Jets contrails to last longer. Since the glider emits no particulates the contrails dissipate rather fast few minutes or less normally. - Ian Bach
Kristen mentioned patents....I actually designed something that a patent was taken out on. However within a year or two it was obsolete. Mike had a great link to an example of some of the nutty things that gets patents. Mine was a collapsible decontamination chamber/shower system. This was in 1989 back when we were using mobile shower / De-con systems. The other ones were built in place, non-mobile. Also places like geoengineeringwatch.org are a clearinghouse for all the worst ideas for weather modification that were never used or done, but for some strange reason these people there at Geoeng seem to think they are doing all the craziest ideas but its just hiden and a secret. If Bill Clinton couldn't hide a seaman stain on a skirt, I think that is a good example of how things in Government are anything but secret. Something like the scale that these people claim is going on would be impossible to keep secret.