I dont really know... my understanding of the chemtrails is that they possibly serve several purposes.
- to make people sick
- to make slow global warming
- to aid in HAARP
- to help radar in seeing flying objects
Now then... if Chemtrails are used in an effort to slow global warming. Then they would be used to reflect as much heat away as possible. Now you know that the earth revolves around the sun in an eliptical pattern, and different axis of the earth face the sun through the rotation.
During the summer, the southern hemisphere faces the sun, and the earth is closer to the sun. So it would be my assumption that if Chemtrails are to aid in the resistance of global warming... then they would be sprayed further south. Hence why I dont see them in alberta, and they are all over florida.
But it could also have to do with the fact that in alberta we are building loads of oil related stuff, and they want to keep the workers healthy to keep on building oil refineries and such. And that florida is costly due to the aging population, and the agenda is to remove the cost burden.