How Does the Emission Factor Library Work, and Which Databases Are Included?

Written By CarbonX Registry

Last updated 4 months ago

The CarbonX Emission Factor (EF) Library provides access to more than 500,000 verified emission factors sourced from the world's most trusted environmental and regulatory databases — enabling accurate, current, and standards-aligned GHG calculations.

How It Works

  • The CarbonX EF Engine connects directly to multiple authoritative databases, ensuring that every calculation is grounded in the latest available science and regulatory data.

  • Emission factors are automatically updated as source databases release new versions.

  • Users can search, filter, and select factors by source, sector, region, or year to ensure full methodological transparency.

  • All calculations remain traceable, with clear documentation of the EF source and version used.

Included Databases

CarbonX integrates data from a wide range of globally recognized sources, including:

  • DEFRA – Department for Environment, Food & Rural Affairs (UK)

  • IPCC – Intergovernmental Panel on Climate Change

  • Ecoinvent

  • EPA – Environmental Protection Agency (U.S.)

  • EEA – European Environment Agency

  • Base Carbone™ (ADEME)

  • CBAM – Carbon Border Adjustment Mechanism

  • GLEC – Global Logistics Emissions Council

  • EXIOBASE

  • EIME – Environmental Improvement Made Easy

  • AusLCI – Australian National Life Cycle Inventory Database

  • ProBas – German Federal Environmental Agency

  • 3EID

  • BUWAL

  • Environmental Product Declarations (EPD)

  • Canadian Raw Materials Database

  • CEDA

  • Building Research Establishment (BRE)

  • CCaLC – Carbon Calculations over the Life Cycle of Industrial Activities

  • ESU-services (extension of ecoinvent 2.2)

  • CGA, ECI, FEFCO, GEMIS, GREET, BEAT, IDEA, SALCA, and the IEA GHG Programme