Our methodology: scientific rigor under ISO 14064

1) The gold standard: ISO 14064-3

Our backend architecture is built for full traceability of each gram of CO₂e in your logistics chain.

2) High-fidelity data sources

EcoTrace is designed to reference trusted emission factor databases (depending on configuration and geography), including:

• DEFRA (UK) — international road and maritime logistics
• ADEME (France/EU) — EU-specific operational factors
• EPA (US) — North America transport and last-mile calculations

3) Critical correction factors: Radiative forcing

Unlike many widgets, EcoTrace applies a 1.9× multiplier for air transport to account for high-atmosphere effects. The multiplier is persisted in the audit record.

4) Compensation transparency

Every cent collected is designed to remain auditable.

• Verified projects only: Gold Standard or VCS
• Credit retirement: permanent retirement in public registries to prevent double counting

Audit log (example)

This is the structure an external auditor can use to reconstruct the calculation using the database record alone.

{
  "transaction_id": "ECO-99821",
  "timestamp": "2026-03-26T10:45:00Z",
  "input_data": {
    "origin": "28001",
    "destination": "08001",
    "weight_kg": 1.5
  },
  "calculation_logic": {
    "distance_km": 620,
    "transport_mode": "truck_heavy",
    "emission_factor_source": "DEFRA_2024_v1.2",
    "emission_factor_value": 0.1234,
    "radiative_forcing_multiplier": 1.0
  },
  "result_co2_kg": 0.1147,
  "audit_status": "verified"
}