Much of the U.S. uses single-stream recycling, where plastic, glass and paper go into one bin. Here’s what happens to that ...

Successful recycling requires some care. Alejandra Villa Loarca/Newsday RM via Getty Images Alex Jordan, University of ...

Ever wonder what those small numbers on the bottom of your plastic bottles and takeout containers mean? They're called Resin Identification Codes. Follow BI Video: On Twitter More from Science ...