As the buzz around sustainability continues to grow, a clear signal is emerging: designers and their clients want more transparency in the products and materials they specify. Our cross-sectional industry panel — Melissa Mattes, Karen Jess-Lindsley, Jonathan Penndorf, Reiko Kagawa, and Jane White — breakdown designer and manufacturer mindsets on one of lighting's most impactful topics, and discuss how the design community can continue to advance frontiers on sustainable practices.