The Environmental Innovations Initiative (EII) is writing case studies to document the challenges and successes of Ashoka's social entrepreneurs. These cases are targeted at both educational settings and lay readers. They also serve as supporting materials for EII principles. For permission to reprint EII case studies, please contact

Cash for Trash: Solving Dhaka's Waste Problems

• Ashoka Fellows Iftekhar Enayetullah and Maqsood Sinha

A WorldWide Web: Creating an Organic, Fair Trade Network in Mexico

• Ashoka Fellow Hector Marcelli

• Ashoka Fellow Suzana Padua