Our planet's resources are finite, and the engineer's work must take this fact into account. Sustainable elements should be foremost at every stage of a building's design, including the facade, building technology, lighting, rainwater use, as well as heating and ventilation strategies. The international, multi-disciplinary engineering firm Buro Happold has been active in sustainable and environmental engineering design for thirty years and has earned a reputation for expertise and excellence in this field. This book introduces the work of the firm, presenting selected projects with a wide range of constructional detail. The firm focuses on realizing ideas in an ecologically sensible way and developing solutions from a long-term perspective.