Exploring the Challenges of Environmental Planning and Green Design: Cases from Europe and the USA Renovating to Passive Housing in the Swedish Million Programme Regulative, facilitative and strategic contributions of planning to achieving low carbon development West Village: Development of a New Ecological Neighborhood in Davis, California The Aldo Leopold Legacy Center: Expanding the Definition of “Community” in Carbon Management Low carbon developments as laboratories of innovative planning tools Integrated planning for ecological urban regeneration Behind the Green Curtain: Shifting Goals and Shifting Roles Creating Post-Carbon Communities: The Return of the Public Sector

The article presents several case studies related to sustainable urban planning in the U.S. and Europe. It discusses the University of California Davis (UC Davis)West Village project, a net zero energy community in the U.S. In Sweden, existing houses and buildings were subjected for renovation to create an energy-efficient eco-neighborhoods. It also talks on the development of Aldo Leopold Legacy Center, a carbon neutral facility in Baraboo, Wisconsin.