This issue pays tribute to sustainable communities across the globe. It spotlights green development efforts in developing countries—from the barrios of Colombia to the villages of Tanzania. Takes a critical look at our fracture-critical world. Focuses on riverfront revitalization along the Mississippi and smart urban living in West St. Paul. And includes insights from author Alan Weisman, as well as national experts on LEED certification and public transportation. (Spring/Summer 2009)