Life Cycle Assessment and Product Carbon Footprinting are related but answer different questions. Both require clear boundaries, good data and transparent assumptions.
Product Carbon Footprint
A product carbon footprint focuses on greenhouse gas emissions. It is useful when the primary decision question concerns climate impact or carbon hotspots.
Life Cycle Assessment
An LCA can evaluate a broader range of environmental impacts across the life cycle. It is useful when environmental trade-offs matter or when carbon alone does not capture the decision context.
How to choose
- Choose a PCF when climate impact is the principal question.
- Choose an LCA when multiple environmental impacts or trade-offs need to be evaluated.
- Use the intended decision, audience and data availability to determine the appropriate scope.
Why the distinction matters
A narrower analysis is not automatically a weaker analysis. The best method is the one whose scope matches the question being asked and whose results can be supported by the available evidence.