They are not contrails they contain heavy metals. The evidence goes back 70 years. Denial is simply ignorance of all this evidence and denial of one's own senses.
Their does seem to be weather warfare applications for this too (doubts for example). They certainly don't seem discouraged by the fact that Aluminum causes brain damage and studies show it devastates the environment. Dane W claims megatons are being sprayed world wide and that no studies were done to test this level of contamination.
I have yet to hear someone claim it is pesticides. Lol.. I should not be surprised if that happens.
RE: chemtrails over a populated icey area with no farming activity