Book excerpt: Our cities and communities face an uncertain and daunting future. Diverse challenges, including an increasingly warmer and erratic climate, losses of biodiversity, disparities in economic equality, and state and federal hostility to local action, test the survival of many communities. Paralleling these challenges is an explosion of development that will rival post-World War II land use expansion. Yet most development codes are decades old and not prepared to confront today's changes, and many local governments do not have the time or resources to research and address the myriad of changes and uncertainty they face. The Sustainability Development Code (SDC) project provides concrete ways for communities to amend development codes and adapt to new challenges as they occur. The SDC aims to help all local governments, regardless of size and budget, build more resilient, environmentally conscious, economically secure and socially equitable communities. In tandem with the SDC project, this book arms local governments with a diversity of approaches to meet the climate change challenge, focusing on actions that are traditionally within local governments' land use and development authority.