Whole lot of trash

CHARLESTOWN, Mass.--Tucked inside an industrial park in this Boston neighborhood is a single stream recycling center run by Casella Waste Services. The facility was opened in 2009 and has seen growth in customers and the recycling rates that they are getting.

With single stream recycling, people put all types of recyclable material into a single container. The company adopted an automated system which separates 75 percent of the material that comes in, using a combination of techniques.

See related article: Machines eyeball trash for single-stream recycling.