A practical, pattern-based guide to designing and retrofitting American cities and communities for environmental sustainability; it synthesizes principles and illustrative precedents into clear design patterns that operate at multiple scales—from regional planning and urban form down to neighborhoods, streetscapes, and individual buildings. The book examines land use, transportation, energy, water, materials, and green building strategies, using case studies to demonstrate how compact, mixed-use, transit-oriented, and resource-efficient approaches can reduce carbon emissions and enhance resilience. It also outlines policy tools, metrics, and implementation steps aimed at planners, architects, and policymakers seeking measurable, equitable paths toward healthier, more sustainable communities.