Scope 3 From Your Procurement Ledger: What You Can Actually Calculate

Key topics covered

• Understanding the spend-based approach to Scope 3 estimation and when it's good enough • How to extract and classify procurement data for emissions calculation • The difference between spend-based, average-data, and supplier-specific methods • Which Scope 3 categories your procurement ledger can realistically cover • Practical steps to move from estimates to higher-quality supplier data over time • How Climatise automates procurement ledger analysis with AI-powered classification

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As regulatory pressure ramps up around Scope 3 disclosures, many organisations are asking: How much emissions insight can we really get from the data we already have? The answer, it turns out, is quite a lot.

Your procurement ledger — the record of everything your organisation buys — is the single most valuable starting point for Scope 3 estimation. By classifying spend against DEFRA emission factors, you can build a directional picture of your value chain emissions without sending a single supplier questionnaire.

This webinar walks through real examples of how organisations have used their existing financial data to identify Scope 3 hotspots, prioritise supplier engagement, and build a credible baseline — all within weeks rather than months.