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How Jet Planes affect weather
The reflectivity of the earth is also altered by jet contrails, say Dr. Walter Orr Roberts, director of the National Center for Atmospheric Research.
Contrails, Dr. Roberts explains, do not simply spread out at the 30-40,000-foot altitudes where jets fly, but spawn cirrus clouds by seeding the upper atmosphere with ice crystals from the water vapor in jet exhaust. On a clear day, you can often see this happening near heavily traveled airways.
"It is almost certain that on many occasions - 30 to 40 days a year, say - the cause of cirrus cloud cover can take in a substantial part of a continent, perhaps half of the U.S., and has a substantial influence on our radiation budget"
- Popular Science, May 1969, Page 76
Originally posted by chadderson
So... A magazine with an agenda says they are fine. That means you believe it?
EDIT: I am living in the new dustbowl (Indiana) and i witness these trails killing clouds on a daily basis. I have timelapsed pictures that show how when clouds reach a particular altitude, they just dessipate and die. The chemicals are kept at a specific altitude, just as oxygen is kept to a particular altitude as governed by our earth's unseen forces. Once clouds reach the elevation of the chemicals, manmade science unfolds.
Originally posted by chadderson
reply to post by Uncinus
So non chemical trails can create clouds. Ok.
Yes, clouds can be created, and clouds can be destroyed
Originally posted by Uncinus
Originally posted by chadderson
reply to post by Uncinus
So non chemical trails can create clouds. Ok.
But the issue here is that most chemtrail believers, especially those who promote the theory with their "documentaries" claim that non-chemical trails cannot, or that it's incredibly rare. This shows they are wrong. And this has been pointed out to them so many times that it's quite difficult to claim they are not lying.
Ask any hardcore chemtrailer - they will tell you "contrails quickly dissipate, chemtrails spread out to cover the sky". They are wrong, they have been lied to.
Originally posted by chadderson
You realize that your claim that "most believers think X" is a completely relative, and otherwise baseless statement.
I do see what your intent here was. It is to prove that "normal" jet trails can create clouds.
Originally posted by WiseThinker
Yet this conversations keeps getting thrashed by stupid arguments like do Contrails persist or not, when there are videos of unmarked planes, suddenly having a contrail, then not, and then again, at the same altitude.
Ask any hardcore chemtrailer - they will tell you "contrails quickly dissipate, chemtrails spread out to cover the sky". They are wrong, they have been lied to.
Originally posted by poppycock
Is this what yer talking about OP?
edit on 18-7-2012 by poppycock because: (no reason given)