The name is derived from a document of the same name: Chemtrails: Chemistry 141 & 142, Fourth Edition CB (Applications & Concepts in Chemistry) Usafa ISBN: 0201306840 ISBN-13: 9780201306842 Publisher: Addison Wesley Publishing Company Format: Spiral-bound Referring to the phenomenon observed in the skies over most western countries since as early as 1987, later NASA updated its "observations" to include "naturally occurring persistent contrails" which is apparently good enough to pacify ignorant sheeple that have grown up with clear skies as a child, and chemtrails as an adult - and yet look to NASA for a straight answer about anything. 🤷♂️