The document discusses green supply chain management. It defines green supply chain as involving green practices throughout a product's lifecycle from design to disposal. It notes that green supply chain management has traditionally focused on encouraging suppliers to adopt green practices, but now aims to also create business 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. The document concludes with a case study of Walmart's green supply chain goals and accomplishments in areas like renewable energy, waste reduction, and sustainable sourcing.