Yesterday morning (Sunday 16th August), I was in the garden and was really pleased to notice a high altitude plane in an area of blue sky, for once not issuing a big, fat chemtrail, when seconds later it just instantly turned on a big, fat chemtrail. Caught in the act. Turned on like a tap. It looks like the plane was strategically heading towards an existing area of clouds to react with them in some way.
I mean you just can’t turn vapour-trails on and off like a switch, can you?
Plane heading towards right of picture, oriented NNW to NNE