I live in a city with a large airport. So there are flights going over on a regular basis and these produce contrails. A whole day can go by and things are normal....contrails....or suddenly the planes with the chemtrails appear and start crisscrossing the sky. So my point is...flight schedules and planes are similar day to day....how can there be days with no chemtrails and other days when chemtrails are all over a part of the sky? Why the difference if these are the same flights on the same schedule?