The Athena Institute announces version 5.4 of its acclaimed whole-building life cycle assessment software tool. …The Athena tool delivers reliable results with its best-in-class methods and the highest quality background data available, with true regionalization for North America and true cradle-to-grave assessments. As always, the software quickly models any building type at any design stage. It makes side-by-side comparisons easy. Thousands of users find it indispensable for helping them reduce the environmental impact of buildings, earn the LCA credit in LEED®, or report embodied carbon. And it’s free. What’s in the latest release: Assembly algorithms for CLT walls, floors, and roofs… Updated Canadian wood product profiles.