This key facts covers Limitations and Challenges of LCA within Life Cycle Assessment for GCSE Chemistry. Revise Life Cycle Assessment in Using Resources for GCSE Chemistry with 22 exam-style questions and 12 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 8 of 17 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
📋 Limitations and Challenges of LCA
Incomplete or Poor Quality Data
Many stages lack accurate data, requiring estimates and assumptions. For example, supply chain impacts in developing countries are often poorly documented.
Subjective Value Judgments
It's difficult to compare different types of environmental impact. How do you compare CO₂ emissions vs biodiversity loss vs water pollution?
Boundary Definition Problems
It's unclear what to include or exclude from the assessment. Should worker commuting be included? Factory construction? Indirect land use?
Commercial Bias and Greenwashing
Companies may manipulate results to favor their products by cherry-picking data, excluding unfavorable stages, or using favorable assumptions.
Temporal and Geographical Variations
Impacts vary by location and time. For example, electricity grid emissions vary by country and are changing as renewable energy increases.
Practice questions for Life Cycle Assessment
What does LCA stand for in the context of environmental science?
State two factors that are measured during a life cycle assessment.