oly Posted December 18, 2011 #1 Share Posted December 18, 2011 Contrails from jet engines effect the climate by blocking out the sun, creating a thermal blanket, & who knows what else? Link to comment Share on other sites More sharing options...
Lilly Posted December 18, 2011 #2 Share Posted December 18, 2011 Oly, you already have a thread about this subject here. Closed, duplicate thread Link to comment Share on other sites More sharing options...
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