In the midwest, near Chicago the day time chemtrails are down about 90% from where they were at about 6 months ago or so. Then, I would see them out everyday, boggled my minds how nobody would notice these planes coming by and making hazy, shitty clouds. Could be they are doing them at night, but I think there is a partial purpose of doing it in the day to block something out from the sun, to refract it. But it is mysterious shit, so not sure I have ever heard a really good explanation on what they are.