Considering the fact that contrails commonly type several hundred ft behind the plane, travellers on business airliners normally do not see contrails forming, offering bodyweight into the declare that "chemtrails" only originate from Particular military aircraft. Professional planes also, naturally, don't have windows that face the rear. This element of https://cloud-seeding88887.suomiblog.com/elektromagnetische-wellen-can-be-fun-for-anyone-53445901