Evidence For Atmospheric Aerosol Spraying
Often when the topic of "chemtrails" come up, the knee-jerk response is to view them as "conspiracy theory," owing to the fact that the evidence of our senses -- i.e. actually seeing them with our eyes -- is not considered evidence enough. We are made to believe that only Science, and its primarily excreta - peer-reviewed, published research - can vindicate eye witness or anecdotal accounts.
Those who debunk the notion that the increasingly prevalent 'persistent contrails' we see all around us contain anything other than water vapor and/or ice crystals, forbid their existence a priori, often claiming there is no substantiation from authoritative sources that #1: they exist, and #2: they contribute to illness.