Metals underpin global construction, transportation, and manufacturing, yet much of their production still relies on old, carbon-intensive methods. Several paths to cut emissions across metals supply chains were discussed by Leora E. Dresselhaus-Marais, assistant professor of materials science and engineering, at Stanford’s Jan. 12 Energy Seminar.

Companies undercount emissions from their supply chains by billions of tons, a new study reveals. A new model could help them find and shrink the biggest contributors to their carbon footprints.