GCSE Combined Science (AQA)

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Limitations of Life Cycle Assessments

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Using resources Life cycle assessment and recycling

Limitations of Life Cycle Assessments

4:31 Evaluating Environmental Impact and Waste Reduction
Spec 4.10.2.1
Previous Life Cycle Assessments Next Reduce, Reuse, Recycle
  • Lifecycle assessments (LCAs) evaluate the environmental impact of a product from material sourcing to disposal.
  • Quantifying each part of an LCA is challenging.
  • Resource use and waste production can be measured numerically.
  • Effects of pollutants are harder to quantify and may be unpredictable.
  • Value judgments are needed to quantify pollutant effects, making LCAs subjective.
  • LCAs can be biased if conducted by companies with vested interests.
  • Selective or abbreviated LCAs may omit certain environmental impacts.
  • Companies may publicize environmentally friendly aspects while omitting negative ones.
  • LCAs can be misused to reach predetermined conclusions.
  • Practices like these are referred to as greenwashing.
  • Understanding the flaws and potential misuse of LCAs is important.

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