What happened to Main Street, USA? John Norquist, CEO of the Congress for New Urbanism, tracks the decline of mixed-use communities and walkable neighborhoods following World War II, and examines how the resurgence of these developments is essential going forward.

For more information on the year-long Vision 2020 project, which aims to establish and track a roadmap of critical targets for the building industry to address climate change-related goals by the year 2020, visit http://www.ecobuildingpulse.com/Vision-2020.