Chemtrails Chemistry Manual Usaf Academy 1999

U.S. Airforce manual on chemtrails....Many observers of the past two decades of covert aerosol geoengineering adopted the term “chemtrails” to describe unnatural emissions and trails originating from military jet engines. If the term Chemtrails originated at the DoD we could suspect the term came into wide civilian use when a cadet or instructor repeated it so often that “Chemtrails” was adopted by civilian observers to describe unusual jet aircraft contrails. To their credit, the Oxford dictionary provides an accurate description of chemtrails even if they failed to list the US DoD as the original published source.