Sustainability describes an approach to the design, construction and stewardship of products and environments that align human need and ecological resourcefulness. This course focuses on built work of the last 200 years that grew from a new consciousness of ecological limits, living system dynamics and understanding of human well-being. The practice of sustainability has developed numerous and sometimes competing logics. This course explores how sustainable criteria are influenced by outlook (and self-interest) and how the prioritization of health, social agendas, economics, aesthetics, environmental protection or resource efficiency have shaped selected buildings, landscapes and city plans.