|Claims that airplane contrails are 'chemtrails' are bogus|
|"Chemtrails" are nothing more than contrails. (image credit: NASA)|
What are Chemtrails?
The "chemtrail conspiracy theory" alleges that some contrails (the vapor trails left by jet aircraft in some conditions) are actually a spray of chemicals or biological agents that are being deliberately sprayed at high altitudes for a purpose undisclosed to the general public.