The document discusses life cycle analysis (LCA), which evaluates the environmental impacts of a product throughout its life cycle from material sourcing through end of life. Key stages of LCA include production, distribution, use, and disposal. LCA can help identify ways to improve the environmental profile of products, such as using more sustainable materials, reducing packaging waste, or increasing energy efficiency. The document provides examples of LCA being used to analyze automobiles, refrigerators, washing machines, and fuel sources to help optimize their design and minimize environmental impacts.