Steel. It’s strong, it dominates every modern city, and it’s supporting developing economies. But its production generates a lot of carbon emissions. What’s the answer? The Energy Podcast investigates. Presented by Julia Streets. Featuring Professor Leora Dresselhaus-Marais from Stanford University and Lene Hviid from Shell’s metals division. Additional reporting by Judith Durkin. The Energy Podcast is a Fresh Air Production for Shell. Edited by Claire Daley, production by Annie Day.  See omnystudio.com/listener for privacy information.