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Chemtrails: Real or Not?

What you always thought were simply contrails are really dangerous chemicals being sprayed.

By Brian Dunning via skeptoid

Read podcast transcript below or listen here

chemtrail cat_250pxToday we’re going to put on our Men In Black suits, buy a plane ticket, and spray the world with mysterious chemicals as part of an evil government conspiracy. For today’s subject is chemtrails.

Wow. Where to begin. I read a fair amount of skeptical, paranormal, and conspiracy web sites, but I don’t recall ever reading so much vituperation, anger, and name calling as when I read a few forums discussing chemtrails. If you’re not familiar with the term, chemtrails are what some conspiracy theorists call aircraft condensation trails. Most of them don’t believe that conventional contrails exist, and that when you see one, you’re actually seeing a trail of mysterious airborne chemicals sprayed from the aircraft. Those who do concede the existence of contrails often claim subtle differences in appearance or behavior between a condensation trail and a chemical trail.

First, let’s discuss exactly what a contrail is. A condensation trail, also called a vapor trail, forms at altitudes above 25,000 feet in temperatures below -40 degrees when engine exhaust condenses into ice crystals, creating an artificial cirrus cloud. Water is produced by hydrocarbon burning engines in about the same quantity as fuel consumed, and in the right conditions, this extra addition of water into the air pushes the water vapor past the saturation point, and condensation occurs. contrail 806_200pxIt takes a moment to happen, which accounts for the contrail appearing a short distance behind the aircraft, rather than immediately, like you’d see from a smoke pod on an aerobatic plane, or like when a crop duster releases chemicals. Contrails can also be caused at high altitudes by the extreme low pressure areas created by wingtip vortices, which reduce the temperature enough to condense the existing moisture in the air. As previously mentioned, many chemtrail believers claim that there is no such thing as a condensation trail. Since they’re well understood, 100% reproducible, and observable practically any time you look into the sky, the onus is really on the believers to prove that no such thing is possible. In my opinion they have quite an uphill battle on this one.

By the way, in case you’re wondering whether I meant Celsius or Fahrenheit when I said -40 degrees, here’s a bit of science trivia for you. -40 is the point where the Celsius and Fahrenheit scales are the same.

[ . . . ]

chemtrail 819Some chemtrail believers say that the population is being gassed with some unknown chemical for an unknown reason. Others tie into pop culture, suggesting that chemtrails are the active manifestation of one proposal to combat global warming by placing dust into the upper atmosphere to reflect sunlight. One guy told me “You guys are so full of yourselves just can’t conceive of spiritual warfare can you? Try this fact: malevolent interdimensional entities are involved — project keep the human slave race suppressed.”

Like all conspiracy theories, chemtrails require us to accept the existence of a coverup of mammoth proportions. In this case, virtually every aircraft maintenance worker at every airport in the world needs to be either part of the conspiracy, or living under a threat from Men in Black, with not a single whistle blower or deathbed confession in decades.

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