In the Australian city of Kwinana, nets at several drainage pipes in the area have been installed. You see, Kwinana has a major issue: garbage carried via storm runoff into waterways and ultimately polluting the environment.
By installing the nets, Kwinana has vastly cut down on the amount of garbage deposited in the rivers and lakes. In a mere six months, Kwinana has stopped 815 pounds (370 kilograms) of waste from entering the waterways. Not only is this better for the environment, it saves money - the cost to clean up garbage goes up 4x once it is in the waterways as opposed to catching it in these nets.