Thread: Contrails cannot form into clouds (proof!)
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Old 11-18-2009, 02:01 PM
Alferd Alferd is offline
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Join Date: Nov 2009
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Default Re: Contrails cannot form into clouds (proof!)
Even in the summer ice supersaturated reions form.

http://www.pa.op.dlr.de/issr/Cha3.html

granted, they are thicker in the winter, but they still exist in the summer.
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