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Chemtrail conspiracy theory

A Boeing 747 leaving a contrail. These contrails are often said to be chemtrails by conspiracy theorists.
Not to be confused with Contrail.

A chemtrail is a trail of chemicals left by an airplane at a high altitude. According to a conspiracy theory, the chemicals are said to be deliberately sprayed for reasons that are kept secret by the government.[1] Most scientists and workers in the aviation industry say that the trails left by planes are just a form of condensation. These are called contrails (condensation trails).[2][3][4]

People who believe the theory have speculated about what purpose chemtrails may serve. Some say it is to change the weather or stop global warming. Others say that it is to control the population by spreading chemicals that are harmful to the human reproductive system.[2] Some more recent versions of the theory say that chemtrails are being spread by companies that make genetically-modified (GMO) crops. The chemtrails supposedly contain herbicides that will only kill normal (organic) crops and will not affect the genetically-modified crops.

Some claim that specially modified planes, supposedly owned and operated by the government, are necessary to create a chemtrail. The chemicals are said to either come from the engine or from special nozzles on the plane. In some versions of the theory, the chemical is said to be barium or a barium compound, but in other versions it is aluminum oxide, or a mixture of barium compounds and aluminum oxide.[4]

Chemtrails are not to be confused with the spraying of chemicals over short distances at a low altitude, such as aerial firefighting or crop-dusting.

  1. ↑ Watson, Traci (7 March 2001). "Conspiracy theories find menace in contrails". USA Today. Archived from the original on 30 August 2011. Retrieved 1 October 2011. The theory: The white lines of condensed water vapor that jets leave in the sky, called contrails, are a toxic substance the government deliberately sprays on an unsuspecting populace.
  2. ↑ 2.0 2.1 "What are chemtrails, and should you be scared of them?". howstuffworks.com. 2013. Retrieved 6 June 2013.
  3. ↑ "Contrails Facts" (PDF). AFD-051013-001. US Air Force. 13 October 2005. Archived from the original (PDF) on 6 March 2013.
  4. ↑ 4.0 4.1 Downing, Bob (16 March 2002). "Conspiracy theorists look up: Some argue jet contrails are U.S. chemical spray". Beacon Journal News. Retrieved 26 August 2008.

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