Chemtrails? Contrails? What are the trails behind airplanes?
Chemtrails is a term that means "chemical trail" and is often used in the context of conspiracy theories. According to this theory, it is claimed that the contrails left behind by airplanes actually contain chemical substances or biological agents and that these substances are intentionally released into the atmosphere. These claims usually suggest that governments, companies or other organizations use these methods to control people, change the climate or for other unknown purposes. Is There Any Truth? Scientifically, the trails left behind by airplanes are generally formed when water vapor produced by the combustion process of engines condenses in the cold atmosphere and turns into small ice crystals. These are called contrails. There is no scientific evidence for chemtrail claims and they are usually based on misinformation or speculation.