You polish off the last slice of pepperoni pizza and hold the box in your hand. The grease has seeped through the bottom, leaving translucent stains across the cardboard. Should it go in recycling?

Trying to recycle the wrong materials only clogs up the system. We asked a recycling expert about the dos and don'ts of recycling takeout boxes.

Conventional PCB manufacturing—which is wasteful, energy intensive, and harmful to the environment—increasingly calls for electronics recycling to reduce material waste and energy requirements through ...