The word 'ChemTrail'' was first used by the air force academy [View all]

Contrary to rumors of “conspiracy theory”, the Department of Defense first published “Chemtrails” in 1990 as the title to a chemistry course for new pilots attending the esteemed US Air Force Academy. The term “Chemtrails”, and its implied meaning was eventually adopted by civilian observers to describe unusual jet contrail emissions.

In 2001, US Rep., Dennis Kucinich introduced HR 2977 “Space Preservation Act of 2001″. The text of the Bill defines Chemtrails as an exotic weapon.



Later editions of this textbook are now available online. See BookFinder4U or Google Search by ISBN number = ISBN: 0201306840

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NASA’s historical use of the term “chemical trail”:

NASA Chemical Trails - Chemical Aspects of Upper Atmospher Research - 1964

The familiar aviation term “contrail” is a contraction of the two words “condensation” and “trail”.

Similarly, a “chemtrail” is a logical application of the contraction rule where two similar words, “chemical” and “trail” are spliced together as a single recognizable word.

The term “chemical trail” became part of the NASA lexicon when published in the document “Chemical Aspects of Upper Atmosphere Research”. Excerpt below:

“Langley research center released tetramethyl-lead vapor trails in lower heterosphere”

“Thus, in the search for a satisfactory chemiluminescent agent, the Langley Research Center released tetramethyl-lead vapor trails in the lower heterosphere during two night-time (early morning) experiments on January 22, 1964. In each experiment about 22 Ibs of liquid Pb(CH 3) were carried aloft by the type of rocket shown in figure 6. The visible chemical trail extended from an altitude of about 89 km. to 113 km…”

Source: NASA: “Chemical Aspects of Upper Atmospher Research” Published May 8, 1964, Page 6 and 7
By Richard A. Hord and Harold B. Tolefson (PDF)

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Contrary to rumors of “conspiracy theory”, the Department of Defense invented and published the term, “Chemtrails” in 1990 as the title to a chemistry manual for new pilots attending the esteemed US Air Force Academy. With the manual funded by the American taxpayer, the term “chemtrails” continues to be used by observers to describe unusual jet aircraft or rocket emissions.



In etymological terms, the origin of a word is very important. Regardless the intended definition, history clearly shows the term “Chemtrails” originated at the US Department of Defense as the title for a Chemistry manual used at the Air Force Academy cadet training program in the early 1990’s. Two editions of the “Chemtrails” manual are known to exist – A 200 page version for the 1990 Fall class and a 232 page version for the 1991 class. The course title “chemtrails” was so popular as to be adopted by the DoD for at least two academic years (1990-1991).