Chemtrails - faq - 6 of 9 - high quality

The Chemtrail conspiracy theory holds that the trails seen behind some aircraft are not ordinary contrails, but are the result of high-altitude spraying of some kind of chemicals for a purpose unknown to the general public. Versions of the conspiracy theory circulating on the internet and on radio talk shows hold that they are toxic chemicals deliberately sprayed into the atmosphere by government officials, and federal agencies have since received thousands of complaints from people demanding an explanation. The many versions of rumors circulating propose different chemical composition and purposes behind the spraying, though there is no scientific evidence that they are anything but normal aircraft vapor trails consisting of water vapor and ice crystals. The Environmental Protection Agency, NASA, the Federal Aviation Administration and the National Oceanic and Atmospheric Administration published together a fact sheet to refute the rumors and to explain the science of contrail formation.