I have collected a few videos of aerosol spraying over Ottawa, Canada. Since I am on a really peeled down computer which doesn't seem to think it can upload pic of my own, and these videos are better than what I can do with my luddite camera abilities, I thought I would stick them up here for others to see.
This was taken at the Science and Tech museum in Ottawa:
gOsth4ck3d's Channel Youtube
Asperitas over Colón, Argentina
35 minutes ago