Construction waste comes in many forms. From scrap materials such as wood, brick, metal and asphalt during construction to broken glass, concrete and rocks during demolition. Some of these materials ...

Every year, billions of cigarette butts are discarded worldwide, creating one of the most pervasive and persistent forms of ...

At the recycling center, powerful magnets will pull out steel. Spinning drums will toss aluminum into bins. Copper wires will get neatly bundled up for resale. But as the conveyor belt keeps rolling, ...