Assess ability to apply life-cycle assessment (LCA) methods to compare environmental impacts of alternative building materials in mid-rise construction. Tasks include defining a clear functional unit and system boundaries (cradle-to-gate vs cradle-to-grave), selecting relevant impact categories (e.g., GWP/embodied carbon, embodied energy, water use), compiling inventory data and using LCA databases/tools, running sensitivity and end-of-life scenarios, interpreting results, and making material-selection or design recommendations for structural and envelope systems (concrete, steel, timber, masonry).