How do you verify the accuracy of supplier emissions data?

Three layers. AI extraction is reviewed by a team of 15 analysts, who check anything that looks wrong, whether that is a bad extraction, an ambiguous unit, or an error in the source document itself. Automated checks compare each figure against the organisation's own history and its peer range. The calculator that produces the numbers is verified to ISO 14064-3, limited assurance, by UL Solutions, renewed annually: see the reports in our trust centre.