Scope 3 Materiality Heatmap — all 15 GHG Protocol categories
Click any category for methodology guidance. Colour = materiality risk.
Calculation Method Hierarchy
| Method | Data Required | Accuracy | Rank |
|---|---|---|---|
| Supplier-specific | Supplier verified scope 1+2 data | High | ★★★ |
| Hybrid | Partial supplier + industry EFs | Med-High | ★★★ |
| Average-data | Mass/qty × cradle-to-gate EF | Medium | ★★ |
| Spend-based | Spend (₹) × EEIO factor | Lower | ★ |
| Distance-based | Distance (km) × mode EF | Medium | ★★ |