Life Cycle Assessment and Embodied Carbon
Life Cycle Assessment (LCA) is a scientific method used to evaluate the environmental impacts of a product or material throughout its entire life span, from raw material extraction to disposal. Embodied carbon refers to the total greenhouse gas emissions produced during the creation, transportation, and installation of materials. Together, LCA and embodied carbon analysis help identify opportunities to reduce the environmental footprint of materials and processes in science and construction.
Life Cycle Assessment and Embodied Carbon
Life Cycle Assessment (LCA) is a scientific method used to evaluate the environmental impacts of a product or material throughout its entire life span, from raw material extraction to disposal. Embodied carbon refers to the total greenhouse gas emissions produced during the creation, transportation, and installation of materials. Together, LCA and embodied carbon analysis help identify opportunities to reduce the environmental footprint of materials and processes in science and construction.
💡 Key Takeaways
- Understand what Life Cycle Assessment (LCA) measures and how it evaluates environmental impact across a product's life cycle.
- Differentiate embodied carbon from operational carbon and why embodied carbon matters in design decisions.
- Know the main stages of an LCA (goal and scope, inventory, impact assessment, interpretation) and how data quality affects results.
- Identify practical strategies to reduce embodied carbon in materials, manufacturing, and end-of-life options.
❓ Frequently Asked Questions
What is Life Cycle Assessment (LCA)?
A method to quantify the environmental impacts of a product or system across its entire life cycle—from raw material extraction to end-of-life.
What is embodied carbon?
The total greenhouse gas emissions associated with materials and construction—from extraction, processing, and manufacture to transport, installation, maintenance, and end-of-life.
What stages are typically included in an LCA?
Material extraction and processing, manufacturing, transport, use/operation, and end-of-life/disposal (with possible maintenance or replacement).
What are functional unit and system boundaries in LCA?
A functional unit defines what is being measured for comparison (e.g., per kg or per m2). System boundaries define which life-cycle processes are included; both should be clearly stated for meaningful results.