Chemtrails
Chemtrails is a name used by some to describe certain kinds of trails visible in the sky behind high-altitude aircraft. Such trails are usually referred to as contrails and ascribed to condensation of water vapor in the aircraft exhaust. Those who use the word chemtrails maintain that the phenomena they observe have an appearance different from those of contrails, and are not consistent with the known properties of contrails. They believe that these trails indicate some kind of chemical spray. Since no government or other organization has acknowledged such spraying, the belief is an example of a conspiracy theory.Possible conspiratorial explanations include atmospheric and weather modification, biological warfare, or purposes associated with a New World Order.
Chemtrails have been discussed on talk-radio programs hosted by Art Bell and Jeff Rense, who frequently deal with other paranormal and conspiratorial topics. According to an FAQ posted at the Rense website "chemtrails (CTs) look like contrails initially, but are much thicker, extend across the sky and are often laid down in varying patterns of Xs, tick-tack-toe grids, cross-hatched and parallel lines. Instead of quickly dissipating, chemtrails expand and drip feathers and mares' tails. In 30 minutes or less, they open into wispy formations which join together, forming a thin white veil or a 'fake cirrus-type cloud' that persists for hours."
Skeptics assert that contrails normally exhibit a wide variation in appearance and that the descriptions and photographs of "chemtrails" are perfectly consistent with those of ordinary contrails.
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