Japanese company Blest headed by Akinori Ito has created a machine which can return plastic rubbish back into its original form-- oil. Several are in use, and his team travels around the world to show the machine in action.
Watch the video.
I've always thought that you can't have highly specialized technological methods for production but then just throw those products in a hole in the ground. If we want to create highly technical products that don't bio-degrade, then we have to use the same amount of care in its disposal.