What is the point of giving studies, when the first answer is cover up?
Contrails resemble cirrus clouds, which, are made up of ice crystals, and persist for many hours at high altitudes.
Why should I then believe that ALL contrails MUST dissipate within a few moments? That makes no sense whatsoever.
If any one has taken a science class, generally it is taught about the different kinds of clouds and formations clouds can take.
Cirrus clouds (or sometimes called mare tails) are just as persistent and long lasting as contrails in the same conditions.
The atmosphere is not one big medium of consistency, in fact it is constantly churning, turning. Jet streams, rising hot air, cold fronts, all atmospheric conditions have an effect on moisture condensation in the air.
If someone wants to read an easy to read, normal down to earth logical article, I suggest starting here.
http://www.iangoddard.com/contrail.htm
I again do not understand why asking for evidence against a conspiracy theory is worth any time. Because quite consistently it will be labeled as a cover up.
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