One could argue that the overall political beliefs in the state play into this. The lack of formalized state, county, city recycling programs/policies (in most areas) is a big factor into the environmental impact in this area.
I have noticed that some people did not care much about trash or throwing things on the ground, but than again this happens anywhere. Unfortunately I was too late to read the article, but I am interested in learning if there are studies or other ways that environmental impacts have been captured, perhaps quantifiably?