posted on Mar, 13 2012 @ 12:09 AM
reply to post by DoNotForgetMe
Contrails dissipate a few minutes after leaving the plane, chemtrails linger, I have seen them linger as long as 2 hours depending where the
Jet Stream flows....
Again.....I am forced to keep repeating these facts.....
SOMETIMES contrails form, and quickly sublimate (evaporate). This is because the atmospheric conditions are such that they just won't persist.
Just as sometimes (MOSTLY, actually) there are NO contrails at all!!!
There are degrees of atmospheric conditions that vary greatly.....so, this is why the vast majority of flights DO NOT make contrails, day in, and day
However, in certain conditions, the atmospheric saturation is such that the contrails that form WILL tend to persist...in fact once formed they can
contribute to MORE cirrus cloud formation, in a sort of "boot-strap" triger effect.
This is a mirror of how it occurs in Nature, actually.
The meme that "all" contrails are short-lived is a complete and utter lie and misconception.
Sorry, the science and the facts are clear on this.