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Old 11-17-2009, 09:04 AM
Alferd Alferd is offline
Junior Member
Join Date: Nov 2009
Posts: 22
Default Re: Contrails cannot form into clouds (proof!)

Originally Posted by TrutherD View Post

Persistent contrails that last longer than about a minute are impossible. Persistent contrails that form clouds or haze is impossible.

At 30,000 feet, contrails consist of ice crystals. Clouds consist of ice crystals. the same processes that allow clouds to persist allow contrails to persist.
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