as adopted by the united nations, sustainability is the economic development that meets the needs of the present generation without compromising the ability of future generations to meet their own needs. Many institutions identify the three aspects of sustainability to be economic, social and environmental, also described as the “triple bottom line” for an organization that focuses on “profit, planet and people”. Within the built environment, the definition of sustainability and how to best achieve it is evolving. today, the focus is on operating efficiency and risk mitigation with a growing emphasis on the environmental impact of buildings
