Defending the number, in practice
Field notes on product carbon footprints: what assurers ask for, what audit-ready software actually means, and how SKU-level programs scale without losing their evidence.
What the CSRD Omnibus Changed for Product Carbon Footprints
The Omnibus narrowed who reports and when. It did not change what a defensible product carbon footprint looks like. Here is what still stands.
Read the guide →How to Make a PCF Auditable: Traceable Emission Factors, Step by Step
A product carbon footprint is auditable when every number traces to a source. The step-by-step workflow: factors, versions, lineage, and what assurers check.
Read the guide →One GWP Vintage per Reporting Period
A PCF can be arithmetically perfect and still fail review if its factors carry different IPCC GWP vintages. How the mix happens, and how to catch it.
Read the guide →Primary Data Share in PCFs: What It Is and How to Raise It
Primary data share tells auditors how much of your product carbon footprint rests on supplier-specific data. What counts, what ESRS expects, how to raise it.
Read the guide →Supplier PCF Data Collection Without the Spreadsheet Spiral
Why supplier carbon data collection stalls in spreadsheets, and a workflow that produces evidence an auditor can actually follow.
Read the guide →SKU-Level Carbon Footprints: From Hero Products to Your Whole Catalog
Scaling from a few hero-product LCAs to SKU-level footprints across your catalog: what breaks, what to standardize, and how to keep numbers defensible.
Read the guide →Defending a Carbon Number in a Third-Party Audit
What assurers actually ask for when they test a product carbon footprint: factor traceability, data quality, GWP vintages, and a readiness checklist.
Read the guide →CSRD & ESRS E1 for Physical-Product Brands: A Practical Compliance Guide (2026)
What ESRS E1 actually requires for product and Scope 3.1 emissions in 2026, the assurance dimension, and how to prepare an audit packet that holds up.
Read the guide →Product Carbon Footprint Software: What 'Audit-Ready' Actually Means
Most PCF software produces a number. Few produce one you can defend under third-party assurance. Here's the difference, and what auditors actually check.
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