Developed as a concept to better understand material and resource flows in cities, urban metabolism was first introduced in the 1960s, and with advancements in the late 1990s to include the wider anthroposphere, urban metabolism studies continue to be developed today and include applications for sustainable urban design, greenhouse gas emissions and policy analysis. In this video you will understand the elements of urban metabolism models, review some earlier examples of urban metabolism diagrams, and reflect on its application in engineering sustainable cities, and in urban planning and design.