There is common agreement that international trade should contribute to sustainable development, particularly in the South. What is less clear is how to make this happen. Based on a broad analysis of the changing trends in supply chain management, this report looks at the real pressures faced by producers in the South and how they are responding to new social and environmental challenges. The report contains case studies from four developing countries -- Bangladesh, Ghana, India and South Africa -- looking at sectors as diverse as cocoa, shrimp, textiles, and tourism. The report identifies a dangerous disconnect between the often abstract trade and environment policy discussions and the realities in the marketplace, and proposes an agenda for action