I share the same concern Dean Timothy has for all of the garbage spotted in the ditches on a recent trip to beautiful Canmore, where I live. However, I detect a slight bias towards who is at fault here.
The implication seems to point towards those pesky Albertans. Any thinking person should realize this is a human problem, not one based on which province you reside.
Check anywhere and you see the same thing. I have an acquaintance in Bridgewater, Nova Scotia, and they have the same problem there. Proof that people are a little selfish and self centered (especially when no one is looking) no matter the locale.