The document discusses green supply chain management. It defines green supply chain as including all stages from product design to retrieval in a sustainable way. It notes that green supply chain management has historically focused on encouraging suppliers to adopt green practices, but now aims to also create value through improved productivity, innovation, and growth. It provides examples of how adopting green supply chain best practices like waste reduction can increase business results and drive process improvements and innovation. The document also summarizes Walmart's ambitious goals to become more sustainable and green across its supply chain operations and provides specific examples of projects undertaken to achieve these goals.