On the Air: Paper vs. Plastic

In his intro to sustainable engineering classes at Northwestern University, professor Eric Masanet likes to set the tone for the semester by posing the once ubiquitous checkout question: “Paper or plastic?” For many of his eager young students, the answer seems obvious—paper breaks down fast in the environment, is easy to recycle, and comes from … Read more

Myth: Paper Bags Are Greener Than Plastic

Paper vs. Plastic Showdown There’s a new sheriff in town—and plastic shopping bags are taking the heat. With Chicago the latest city to jump on the bandwagon of 160+ other U.S. cities (and potentially the whole of California) in outlawing plastic bags, it’s simple to assume that easy-to-recycle paper bags are the greener choice. But … Read more