Every clca article tagged “life cycle assessment” — 13 technical pieces covering the topic from methodology, standards interpretation and practical application angles.
13 articles
Interpretation is the phase where an LCA questions its results rather than summarising them. The three ISO 14044 steps: significant issues; completeness, sensitivity and consistency checks; conclusions with uncertainty.
Read moreHotspot analysis shows which process, flow or module the total environmental impact comes from. The three axes of contribution analysis, the Pareto logic, hotspots that shift by impact category, and the move to a reduction scenario.
Read moreA4 is the transport of the product from factory gate to site, calculated as mass × distance × a per-tkm factor. Vehicle class, utilisation, empty return and the trap of volume-limited products; the EN 15804 scenario table and a worked example.
Read moreA product's embodied carbon is the sum of its A1–A3 emissions per declared unit. The formula, the A1/A2/A3 split, pulling values from EPDs, the biogenic carbon distinction and a worked example for 1 m² of wall.
Read moreAn LCA report is the document that lets a reader arrive at the same result. The mandatory ISO 14044 content, the rules for third-party reports and comparative assertions, a section template and what is most often missing.
Read moreBoth compute emissions, but they do not answer the same question. System boundary, gases covered, allocation rules and verification regime all differ.
Read moreThe five phases of an EPD project from declared-unit definition to the verifier package: inventory, calculation, QA, report and lock.
Read moreOne indicator, full life cycle. What ISO 14067 inherits from ISO 14044, the partial footprint concept and the limits of claims.
Read moreThe two most commonly confused concepts. One is a permitting process, the other a measurement method — and neither substitutes for the other.
Read moreLCA is the standardised method for measuring a product’s environmental impact from raw material to waste. Its four phases, what it does and does not do, and where to start.
Read moreComparing feature lists misleads. What actually decides it is database access, verifiability and fit with your workflow.
Read moreThe definition has not changed since 1987, but what it means for a company has: from a statement of intent to a measured, audited and priced dataset.
Read moreOne is a calculation, the other a document. Every EPD has an LCA behind it, but not every LCA becomes an EPD — and the difference lies in who it is prepared for.
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