The document discusses life cycle analysis (LCA), which examines the environmental impacts of a product throughout its life, including raw material acquisition, production, use, and disposal. It outlines the four main steps of LCA: goal and scope definition, inventory analysis, impact assessment, and interpretation. Key challenges include defining system boundaries, collecting comprehensive data, quantifying environmental impacts, and selecting impact categories and normalization methods. LCA aims to identify opportunities to reduce a product's environmental footprint across its entire lifespan.