Emission Factor Mapping Service
Automated emission factor mapping for Scope 3.1 at chemical level and at scale. Map emission factors to your product and raw material inventory using CAS IDs to reduce manual effort, improve consistency, and close data gaps transparently.
Who it’s for
This service is built for organizations with large chemical substance inventories that need credible Scope 3.1 emission factors without weeks of manual matching.
Sustainability and ESG teams responsible for Scope 3.1 inventory quality
LCA and PCF practitioners doing the mapping and data preparation work
Procurement and supply chain teams managing material masters and supplier data
Product stewardship, EHS and regulatory teams requiring transparent documentation
Best fit when:
- You manage hundreds to thousands of substances, often across multiple systems
- Supplier data is incomplete, inconsistent or not available
- You need a consistent and auditable mapping logic across categories and business units
Why it matters
Accurate Scope 3.1 data is essential for a complete emissions inventory and credible decarbonization plans. In practice, teams face three recurring barriers:
Data gaps
Not every purchased substance has a readily available emission factor
Inconsistency
Different people and business units map the same substance differently
Manual workload
Matching materials to emission factors in spreadsheets does not scale
A reliable inventory requires a method that is systematic, transparent and scalable.
What you gain
Faster inventory completion by reducing time spent searching, matching and validating emission factors
More consistent results across teams through standardized mapping logic and improved comparability
Transparent handling of gaps with a clear distinction between mapped, modeled and proxy-filled entries
Better prioritization so you can focus high quality efforts where they most affect Scope 3.1 results
A clearer path to improvement by turning unknowns into a structured backlog for better data over time
How it works
Our Emission Factor Mapping Service helps you close data gaps and address inconsistencies in Scope 3.1 reporting by automatically mapping chemical substances using CAS IDs. This removes time-consuming manual matching and gives you consistent, decision-ready data.x
When substances are missing, we help you close those gaps in two ways:
- Modeling On Demand for high priority items with higher quality results
- Proxy mapping for low priority items for pragmatic coverage with documented similarity
Automated mapping based on CAS IDs
First, we identify all products in your Scope 3.1 inventory that have emission factors available in the Carbon Minds database. This mapping is based on CAS IDs, numerical identifiers for chemical substances. Remaining data gaps are addressed in the next steps.
Invest in data quality where it matters most
Prioritize data gaps based on their expected impact on your Scope 3.1 results. High priority gaps are filled using Modeling On Demand for higher data quality; Lower priority gaps are filled with proxies to complete coverage efficiently
Higher quality
With our Modeling On Demand service, we model the missing emission factors for you using our established methodology. This allows you to fill critical gaps with representative and defensible data.
Pragmatic coverage
For less critical data gaps, our proxy suggestion engine identifies the substances in our database that are most similar to your target based on molecular structure and quantifies the similarity. You can use these suggestions to select suitable proxies while keeping transparency about where proxies were applied.
Get your free mapping service now
See what can be mapped right away, which gaps remain and what the best next steps are.