Oh, and in your 3 examples you missed at least one. I do not know if it was deliberate but it shows that your work is flawed.
The seeding of clouds for rain and snow by aircraft dispersal of silver iodide.
So please excuse me for saying that your article is not worth spit and I get on with figuring out what is actually behind the vapour trails and the resultant lack of sunlight.
Enjoy the vote and reward!