LCA (ISO 14044) — Life Cycle Assessment Automation

A Life Cycle Assessment (LCA) measures the environmental impacts of a product across its entire life - from raw material extraction through manufacturing, distribution, use, and end-of-life disposal or recycling. ISO 14044 defines the technical requirements and is structured around four phases: Goal & Scope Definition (what you’re assessing and the boundaries), Life Cycle Inventory (LCI) (collecting all inputs and outputs - materials, energy, emissions, waste), Life Cycle Impact Assessment (LCIA) (translating that inventory into environmental impact categories like climate change, acidification, water use), and Interpretation (drawing conclusions and identifying hotspots). ISO 14044 also requires that results intended for public comparison undergo a critical review by an independent third party.

These are system boundary choices you make in the Goal & Scope phase. Cradle-to-gate covers raw material extraction through manufacturing - it ends at the factory gate before distribution and use. It’s the standard approach for B2B suppliers providing component-level data to downstream customers, and it’s the basis for most Environmental Product Declarations (EPDs). Cradle-to-grave covers the full life cycle including distribution, use phase, and end-of-life disposal or recycling. It’s used for consumer-facing products, full carbon footprint labeling, and comprehensive ESG disclosures. The choice depends on your goal: if you’re a component manufacturer feeding data into a customer’s broader assessment, cradle-to-gate avoids double-counting. If you’re the brand owner communicating to consumers or regulators, cradle-to-grave gives the complete picture.

A PCF is essentially a subset of an LCA. An LCA evaluates multiple environmental impact categories - climate change (GHG emissions), acidification, eutrophication, resource depletion, water use, and others. A PCF (governed by ISO 14067) focuses exclusively on greenhouse gas emissions, expressed as CO₂ equivalents. Both follow the same foundational methodology (ISO 14040/14044) and use the same inventory data - but the PCF only runs the climate change impact category. If you’re already building an LCA, generating a PCF from the same dataset is straightforward. The reverse isn’t true: a PCF alone won’t give you the multi-indicator environmental profile that regulations like CSRD/ESRS, the EU Taxonomy, or customer EPD requirements increasingly demand.

At minimum, you need activity data from each supplier: quantities and types of materials consumed, energy inputs (electricity, fuel, thermal), transport modes and distances, and waste/emission outputs. This is called primary data - specific to the actual processes in your supply chain. In practice, not every supplier can provide complete primary data. That’s where secondary data fills the gap: generic datasets from LCI databases like Ecoinvent or GaBi that represent industry-average processes for a given material or activity. ISO 14044 prefers primary data but allows secondary data where primary isn’t feasible, as long as the data quality is documented and its influence on results is understood. The practical approach is to prioritize primary data collection for the processes and materials that drive the biggest share of your environmental impact (your "hotspots"), and use validated secondary data for the rest.

LCA is the methodological backbone for several regulatory and disclosure requirements that are now converging. CSRD/ESRS environmental standards (E1–E5) require companies to disclose impacts on climate, pollution, water, biodiversity, and circular economy - all categories an LCA can quantify. Scope 3 emissions under the GHG Protocol (the largest and hardest-to-measure category for most manufacturers) are calculated using the same life cycle inventory data that feeds an LCA. The EU’s Product Environmental Footprint (PEF) method is itself an LCA-based framework. And emerging requirements like the Digital Product Passport (DPP) under the Ecodesign for Sustainable Products Regulation (ESPR) will increasingly require product-level environmental data rooted in life cycle methodology. Building your LCA capability now creates a reusable data asset that feeds multiple downstream reporting obligations rather than treating each as a standalone exercise.

It depends on how you intend to use the results. ISO 14044 requires a critical review by an independent expert (or panel) if the LCA results will be used in comparative assertions disclosed to the public - for example, claiming your product has a lower environmental impact than a competitor’s. For internal decision-making (eco-design, supplier selection, hotspot identification), a formal peer review isn’t mandatory under the standard, though it’s still considered best practice for credibility. For EPDs, most program operators (e.g., EPD International, IBU) require third-party verification as part of the EPD registration process. For CSRD/ESRS disclosures, the sustainability report itself must be assured, and the underlying LCA data and methodology will be part of the auditor’s scope. Bottom line: if the results leave your building, invest in review or verification to ensure defensibility.