A direct result of lack of private ownership of land. As a general rule, people take care of their own land, but don't care what they dump on "public" land.
When I was in the coal mining business, we leased the land from area farmers/landowners. Our activities were scrutinized by state and federal mine inspectors, Mine Safety inspectors, a guy from the EPA who visited one a year to collect dust samples and a near-daily inspection by the guy who owned the land.