There’s been a lot of photos stuck up on the internet without a description of what they are, with the suggestion that they are related to the “chemtrail” theory. I’ve collected a lot of the earlier ones on contrail science:
http://contrailscience.com/contrail-or-chemtrail/
and there’s a thread here that collects a lot of the ballast barrel photos:
https://www.metabunk.org/threads/661-Debunked-Chemtrail-Plane-Interior-(Ballast-Barrels)
The thing is ... Read even more