Balancing sustainability goals with cost pressures is a growing priority in semiconductor manufacturing. This session presents a practical approach to integrating carbon footprint data into cost models, enabling more informed decisions across sourcing, materials, and operations. Using examples from fab-level implementation and equipment supply chains, we highlight how lifecycle data, supplier engagement, and process transparency can drive measurable improvements in both environmental impact and cost efficiency. The discussion will focus on key metrics, decision frameworks, and lessons learned from applying these strategies in real-world contexts.