Chemtrails

Just get a decent pair of binoculars & you'll find that the trails are coming from the TAIL of the airplane, sometimes the tail & the wing but always the TAIL. They do in the UK anyway.
Note: I do not think the powers that be would contaminate the atmosphere on this scale if it would be irreversibly detrimental to the planet or themselves. It could be & I think probable that they are merely cloud seeding or otherwise manipulating the weather to bring about a predetermined change in the climate thats otherwise unharmful in the long term.