OTTAWA – The Athena Sustainable Materials Institute, headquartered in Ottawa, Canada and with a US affiliate in Pennsylvania, is a leading pioneer in the Green Building Sector and proud to have been on the forefront of sustainability metrics for two decades. This small non-profit has had significant industry impact over the past decades in the following ways: The Athena Institute started a revolution in green building design with its free tools for true cradle-to-grave environmental impact measurement of new construction; As pioneers of life cycle assessment (LCA) for the built environment, the Athena Institute is transforming tactics and accountability in green design; Thousands of design professionals, sustainability consultants and students are using the Athena Impact Estimator for buildings – the first, most comprehensive, and the only free LCA tool for the North American design and construction sector.