The actual German audio tells a fairly various Tale: it isn't about temperature manipulation and chemicals, but about chaff (radar counter-steps) deployed from fighter planes in the course of military physical exercises which were falsely registered as rain clouds on meteorological radars. Contrail screening being completed on an Airbus A340 https://erickxjuhr.mybjjblog.com/a-secret-weapon-for-geophysikalische-waffe-50011234