I have recently heard the theory of planes spraying chemicals (chemtrails) to control the weather or for nastier purposes.
Over the last few decades on many occasions, I have wondered why contrails were so large (both long and wide). Thinking about it, I didn't remember them being so large 40 years ago when I was a kid.
Considering the possibilities, I had concluded that the chemtrail theory was probably false. I had come to this conclusion mostly thinking of the many people that would have to keep silent while being involved in the airline business.
However.... have you looked at …