As ESG disclosure moves from voluntary to mandatory, the credibility gap between self-reported data and independently verified data is becoming a material risk. Investors, regulators, and customers increasingly demand third-party assurance of GHG emissions claims.
GHG verification follows established standards — ISO 14064-3 for project-level verification and ISO 14065 for the competence requirements of verification bodies. The process involves boundary review, data sampling, recalculation of emission factors, and an independent opinion on the GHG statement.
For companies, verification is not just about compliance. It forces rigour: clear organisational boundaries, documented calculation methodologies, quality-controlled data flows, and traceable evidence trails. These are the foundations of credible climate disclosure.
RSustain’s parent group holds GAB accreditation for GHG verification under ISO 14065:2020. This means our verification opinions carry the weight of accredited assurance — not just consulting advice.
The distinction matters. As greenwashing litigation increases globally, companies need to demonstrate that their climate claims have been independently tested. Third-party verification is the gold standard for that demonstration.