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Who knows if they are real. But the fact remains that many people have seen these trails in the sky with there own eyes. I have several pictures of them that I have taken as I like to take pictures of them when I see them. They are not like normal contrails as they do not disappear after 15 or so seconds, they last hours. I live in Calgary and they end up here fairly often, but a couple summers ago I took a road trip across Vancouver Island and they were all over the place. I would see planes just going back and forth across the sky and none of the trails would disappear, they would just spread out and stay for hours.
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