Emission factor finder
Look up a published emission factor by what it is for — diesel, grid electricity in India or another country, cement, business travel — and see its gases, basis and the table it came from.
- 10,277 factors from 7 public sources
- Gases, GWP basis and the publisher's table reference on every row
- Searches are not stored
438 factors · US EPA Emission Factors Hub 2025
| Activity | Detail | Region · year | Factor | Gases | Source · reference |
|---|---|---|---|---|---|
| Air travel — long haul (≥2,300 miles)Business travel and commuting | Distance-based (passenger-mile) | United States · 2025 | 0.164395 kg CO₂e per passenger-mileAR5 · Scope 3.6/3.7 | CO₂ 0.163 · CH₄ 0.000001 · N₂O 0.000005 | US EPA Emission Factors Hub 2025Table 10 |
| Air travel — long haul (≥2,300 miles)Business travel and commuting | Distance-based (passenger-km, converted)Converted from per passenger-mile | United States · 2025 | 0.10215 kg CO₂e per passenger-kmAR5 · Scope 3.6/3.7 | CO₂ 0.101284 · CH₄ 0 · N₂O 0.000003 | US EPA Emission Factors Hub 2025Table 10 ÷ 1.60934 |
| Air travel — medium haul (300–2,300 miles)Business travel and commuting | Distance-based (passenger-mile) | United States · 2025 | 0.130103 kg CO₂e per passenger-mileAR5 · Scope 3.6/3.7 | CO₂ 0.129 · CH₄ 0.000001 · N₂O 0.000004 | US EPA Emission Factors Hub 2025Table 10 |
| Air travel — medium haul (300–2,300 miles)Business travel and commuting | Distance-based (passenger-km, converted)Converted from per passenger-mile | United States · 2025 | 0.080842 kg CO₂e per passenger-kmAR5 · Scope 3.6/3.7 | CO₂ 0.080157 · CH₄ 0 · N₂O 0.000003 | US EPA Emission Factors Hub 2025Table 10 ÷ 1.60934 |
| Air travel — short haul (<300 miles)Business travel and commuting | Distance-based (passenger-mile) | United States · 2025 | 0.208928 kg CO₂e per passenger-mileAR5 · Scope 3.6/3.7 | CO₂ 0.207 · CH₄ 0.000006 · N₂O 0.000007 | US EPA Emission Factors Hub 2025Table 10 |
| Air travel — short haul (<300 miles)Business travel and commuting | Distance-based (passenger-km, converted)Converted from per passenger-mile | United States · 2025 | 0.129822 kg CO₂e per passenger-kmAR5 · Scope 3.6/3.7 | CO₂ 0.128624 · CH₄ 0.000004 · N₂O 0.000004 | US EPA Emission Factors Hub 2025Table 10 ÷ 1.60934 |
| BusBusiness travel and commuting | Distance-based (passenger-mile) | United States · 2025 | 0.066632 kg CO₂e per passenger-mileAR5 · Scope 3.6/3.7 | CO₂ 0.066 · CH₄ 0.000005 · N₂O 0.000002 | US EPA Emission Factors Hub 2025Table 10 |
| BusBusiness travel and commuting | Distance-based (passenger-km, converted)Converted from per passenger-mile | United States · 2025 | 0.041403 kg CO₂e per passenger-kmAR5 · Scope 3.6/3.7 | CO₂ 0.04101 · CH₄ 0.000003 · N₂O 0.000001 | US EPA Emission Factors Hub 2025Table 10 ÷ 1.60934 |
| Commuter railBusiness travel and commuting | Distance-based (passenger-mile) | United States · 2025 | 0.133983 kg CO₂e per passenger-mileAR5 · Scope 3.6/3.7 | CO₂ 0.133 · CH₄ 0.000011 · N₂O 0.000003 | US EPA Emission Factors Hub 2025Table 10 |
| Commuter railBusiness travel and commuting | Distance-based (passenger-km, converted)Converted from per passenger-mile | United States · 2025 | 0.083253 kg CO₂e per passenger-kmAR5 · Scope 3.6/3.7 | CO₂ 0.082642 · CH₄ 0.000007 · N₂O 0.000002 | US EPA Emission Factors Hub 2025Table 10 ÷ 1.60934 |
| Intercity rail — national averageBusiness travel and commuting | Distance-based (passenger-mile) | United States · 2025 | 0.096754 kg CO₂e per passenger-mileAR5 · Scope 3.6/3.7 | CO₂ 0.096 · CH₄ 0.000008 · N₂O 0.000002 | US EPA Emission Factors Hub 2025Table 10 |
| Intercity rail — national averageBusiness travel and commuting | Distance-based (passenger-km, converted)Converted from per passenger-mile | United States · 2025 | 0.06012 kg CO₂e per passenger-kmAR5 · Scope 3.6/3.7 | CO₂ 0.059652 · CH₄ 0.000005 · N₂O 0.000001 | US EPA Emission Factors Hub 2025Table 10 ÷ 1.60934 |
| Intercity rail — Northeast CorridorBusiness travel and commuting | Distance-based (passenger-mile) | United States · 2025 | 0.023054 kg CO₂e per passenger-mileAR5 · Scope 3.6/3.7 | CO₂ 0.023 · CH₄ 0.000001 · N₂O 0 | US EPA Emission Factors Hub 2025Table 10 |
| Intercity rail — Northeast CorridorBusiness travel and commuting | Distance-based (passenger-km, converted)Converted from per passenger-mile | United States · 2025 | 0.014325 kg CO₂e per passenger-kmAR5 · Scope 3.6/3.7 | CO₂ 0.014292 · CH₄ 0.000001 · N₂O 0 | US EPA Emission Factors Hub 2025Table 10 ÷ 1.60934 |
| Intercity rail — other routesBusiness travel and commuting | Distance-based (passenger-mile) | United States · 2025 | 0.150396 kg CO₂e per passenger-mileAR5 · Scope 3.6/3.7 | CO₂ 0.149 · CH₄ 0.000012 · N₂O 0.000004 | US EPA Emission Factors Hub 2025Table 10 |
| Intercity rail — other routesBusiness travel and commuting | Distance-based (passenger-km, converted)Converted from per passenger-mile | United States · 2025 | 0.093452 kg CO₂e per passenger-kmAR5 · Scope 3.6/3.7 | CO₂ 0.092584 · CH₄ 0.000007 · N₂O 0.000002 | US EPA Emission Factors Hub 2025Table 10 ÷ 1.60934 |
| Light-duty truckBusiness travel and commuting | Distance-based (vehicle-mile) | United States · 2025 | 0.396637 kg CO₂e per vehicle-mileAR5 · Scope 3.6/3.7 | CO₂ 0.394 · CH₄ 0.000011 · N₂O 0.000009 | US EPA Emission Factors Hub 2025Table 10 |
| Light-duty truckBusiness travel and commuting | Distance-based (vehicle-km, converted)Converted from per vehicle-mile | United States · 2025 | 0.246459 kg CO₂e per vehicle-kmAR5 · Scope 3.6/3.7 | CO₂ 0.24482 · CH₄ 0.000007 · N₂O 0.000005 | US EPA Emission Factors Hub 2025Table 10 ÷ 1.60934 |
| MotorcycleBusiness travel and commuting | Distance-based (vehicle-mile) | United States · 2025 | 0.375468 kg CO₂e per vehicle-mileAR5 · Scope 3.6/3.7 | CO₂ 0.368 · CH₄ 0.000089 · N₂O 0.000019 | US EPA Emission Factors Hub 2025Table 10 |
| MotorcycleBusiness travel and commuting | Distance-based (vehicle-km, converted)Converted from per vehicle-mile | United States · 2025 | 0.233305 kg CO₂e per vehicle-kmAR5 · Scope 3.6/3.7 | CO₂ 0.228665 · CH₄ 0.000055 · N₂O 0.000012 | US EPA Emission Factors Hub 2025Table 10 ÷ 1.60934 |
| Passenger carBusiness travel and commuting | Distance-based (vehicle-mile) | United States · 2025 | 0.29857 kg CO₂e per vehicle-mileAR5 · Scope 3.6/3.7 | CO₂ 0.297 · CH₄ 0.000006 · N₂O 0.000005 | US EPA Emission Factors Hub 2025Table 10 |
| Passenger carBusiness travel and commuting | Distance-based (vehicle-km, converted)Converted from per vehicle-mile | United States · 2025 | 0.185523 kg CO₂e per vehicle-kmAR5 · Scope 3.6/3.7 | CO₂ 0.184547 · CH₄ 0.000004 · N₂O 0.000003 | US EPA Emission Factors Hub 2025Table 10 ÷ 1.60934 |
| Transit rail (subway, tram)Business travel and commuting | Distance-based (passenger-mile) | United States · 2025 | 0.093475 kg CO₂e per passenger-mileAR5 · Scope 3.6/3.7 | CO₂ 0.093 · CH₄ 0.000008 · N₂O 0.000001 | US EPA Emission Factors Hub 2025Table 10 |
| Transit rail (subway, tram)Business travel and commuting | Distance-based (passenger-km, converted)Converted from per passenger-mile | United States · 2025 | 0.058083 kg CO₂e per passenger-kmAR5 · Scope 3.6/3.7 | CO₂ 0.057788 · CH₄ 0.000005 · N₂O 0.000001 | US EPA Emission Factors Hub 2025Table 10 ÷ 1.60934 |
| Grid electricity — United StatesElectricity | eGRID2023 subregion AKGD — ASCC Alaska Grid (total output)Grid gross loss 4.1% (for Scope 3 category 3 activity C, not Scope 2) | US-AKGD · 2023 data | 0.410314 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.40778 · CH₄ 0.000039 · N₂O 0.000005 | US EPA Emission Factors Hub 2025Table 6 (899.0 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion AKMS — ASCC Miscellaneous (total output)Grid gross loss 4.1% (for Scope 3 category 3 activity C, not Scope 2) | US-AKMS · 2023 data | 0.236407 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.235596 · CH₄ 0.000012 · N₂O 0.000002 | US EPA Emission Factors Hub 2025Table 6 (519.4 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion AZNM — WECC Southwest (total output)Grid gross loss 4.1% (for Scope 3 category 3 activity C, not Scope 2) | US-AZNM · 2023 data | 0.337263 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.336021 · CH₄ 0.000019 · N₂O 0.000003 | US EPA Emission Factors Hub 2025Table 6 (740.8 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion CAMX — WECC California (total output)Grid gross loss 4.1% (for Scope 3 category 3 activity C, not Scope 2) | US-CAMX · 2023 data | 0.198762 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.198084 · CH₄ 0.000011 · N₂O 0.000001 | US EPA Emission Factors Hub 2025Table 6 (436.7 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion ERCT — ERCOT All (total output)Grid gross loss 4.2% (for Scope 3 category 3 activity C, not Scope 2) | US-ERCT · 2023 data | 0.336019 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.334751 · CH₄ 0.00002 · N₂O 0.000003 | US EPA Emission Factors Hub 2025Table 6 (738.0 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion FRCC — FRCC All (total output)Grid gross loss 4.2% (for Scope 3 category 3 activity C, not Scope 2) | US-FRCC · 2023 data | 0.36487 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.363736 · CH₄ 0.000019 · N₂O 0.000002 | US EPA Emission Factors Hub 2025Table 6 (801.9 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion HIMS — HICC Miscellaneous (total output)Grid gross loss 4.4% (for Scope 3 category 3 activity C, not Scope 2) | US-HIMS · 2023 data | 0.513475 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.508976 · CH₄ 0.000066 · N₂O 0.00001 | US EPA Emission Factors Hub 2025Table 6 (1122.1 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion HIOA — HICC Oahu (total output)Grid gross loss 4.4% (for Scope 3 category 3 activity C, not Scope 2) | US-HIOA · 2023 data | 0.679807 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.67558 · CH₄ 0.000061 · N₂O 0.00001 | US EPA Emission Factors Hub 2025Table 6 (1489.4 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion MROE — MRO East (total output)Grid gross loss 4.2% (for Scope 3 category 3 activity C, not Scope 2) | US-MROE · 2023 data | 0.639453 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.635937 · CH₄ 0.000053 · N₂O 0.000008 | US EPA Emission Factors Hub 2025Table 6 (1402.0 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion MROW — MRO West (total output)Grid gross loss 4.2% (for Scope 3 category 3 activity C, not Scope 2) | US-MROW · 2023 data | 0.42022 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.417305 · CH₄ 0.000044 · N₂O 0.000006 | US EPA Emission Factors Hub 2025Table 6 (920.0 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion NEWE — NPCC New England (total output)Grid gross loss 4.2% (for Scope 3 category 3 activity C, not Scope 2) | US-NEWE · 2023 data | 0.245432 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.24367 · CH₄ 0.000029 · N₂O 0.000004 | US EPA Emission Factors Hub 2025Table 6 (537.2 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion NWPP — WECC Northwest (total output)Grid gross loss 4.1% (for Scope 3 category 3 activity C, not Scope 2) | US-NWPP · 2023 data | 0.288182 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.286534 · CH₄ 0.000024 · N₂O 0.000004 | US EPA Emission Factors Hub 2025Table 6 (631.7 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion NYCW — NPCC NYC/Westchester (total output)Grid gross loss 4.2% (for Scope 3 category 3 activity C, not Scope 2) | US-NYCW · 2023 data | 0.442795 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.442116 · CH₄ 0.000011 · N₂O 0.000001 | US EPA Emission Factors Hub 2025Table 6 (974.7 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion NYLI — NPCC Long Island (total output)Grid gross loss 4.2% (for Scope 3 category 3 activity C, not Scope 2) | US-NYLI · 2023 data | 0.539498 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.535557 · CH₄ 0.000064 · N₂O 0.000008 | US EPA Emission Factors Hub 2025Table 6 (1180.7 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion NYUP — NPCC Upstate NY (total output)Grid gross loss 4.2% (for Scope 3 category 3 activity C, not Scope 2) | US-NYUP · 2023 data | 0.109576 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.109316 · CH₄ 0.000005 · N₂O 0 | US EPA Emission Factors Hub 2025Table 6 (241.0 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion PRMS — Puerto Rico Miscellaneous (total output) | US-PRMS · 2023 data | 0.702313 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.699893 · CH₄ 0.000035 · N₂O 0.000005 | US EPA Emission Factors Hub 2025Table 6 (1543.0 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion RFCE — RFC East (total output)Grid gross loss 4.2% (for Scope 3 category 3 activity C, not Scope 2) | US-RFCE · 2023 data | 0.27081 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.269751 · CH₄ 0.000016 · N₂O 0.000002 | US EPA Emission Factors Hub 2025Table 6 (594.7 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion RFCM — RFC Michigan (total output)Grid gross loss 4.2% (for Scope 3 category 3 activity C, not Scope 2) | US-RFCM · 2023 data | 0.438765 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.436401 · CH₄ 0.000037 · N₂O 0.000005 | US EPA Emission Factors Hub 2025Table 6 (962.1 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion RFCW — RFC West (total output)Grid gross loss 4.2% (for Scope 3 category 3 activity C, not Scope 2) | US-RFCW · 2023 data | 0.415462 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.413359 · CH₄ 0.000032 · N₂O 0.000005 | US EPA Emission Factors Hub 2025Table 6 (911.3 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion RMPA — WECC Rockies (total output)Grid gross loss 4.1% (for Scope 3 category 3 activity C, not Scope 2) | US-RMPA · 2023 data | 0.472627 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.469922 · CH₄ 0.000041 · N₂O 0.000006 | US EPA Emission Factors Hub 2025Table 6 (1036.0 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion SPNO — SPP North (total output)Grid gross loss 4.2% (for Scope 3 category 3 activity C, not Scope 2) | US-SPNO · 2023 data | 0.393499 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.390951 · CH₄ 0.000039 · N₂O 0.000005 | US EPA Emission Factors Hub 2025Table 6 (861.9 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion SPSO — SPP South (total output)Grid gross loss 4.2% (for Scope 3 category 3 activity C, not Scope 2) | US-SPSO · 2023 data | 0.405856 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.404196 · CH₄ 0.000025 · N₂O 0.000004 | US EPA Emission Factors Hub 2025Table 6 (891.1 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion SRMV — SERC Mississippi Valley (total output)Grid gross loss 4.2% (for Scope 3 category 3 activity C, not Scope 2) | US-SRMV · 2023 data | 0.336273 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.335386 · CH₄ 0.000015 · N₂O 0.000002 | US EPA Emission Factors Hub 2025Table 6 (739.4 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion SRMW — SERC Midwest (total output)Grid gross loss 4.2% (for Scope 3 category 3 activity C, not Scope 2) | US-SRMW · 2023 data | 0.565644 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.561683 · CH₄ 0.00006 · N₂O 0.000009 | US EPA Emission Factors Hub 2025Table 6 (1238.3 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion SRSO — SERC South (total output)Grid gross loss 4.2% (for Scope 3 category 3 activity C, not Scope 2) | US-SRSO · 2023 data | 0.383086 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.381426 · CH₄ 0.000025 · N₂O 0.000004 | US EPA Emission Factors Hub 2025Table 6 (840.9 lb CO2/MWh) |
| Grid electricity — United StatesElectricity | eGRID2023 subregion SRTV — SERC Tennessee Valley (total output)Grid gross loss 4.2% (for Scope 3 category 3 activity C, not Scope 2) | US-SRTV · 2023 data | 0.408608 kg CO₂e per kWhAR5 · Scope 2 | CO₂ 0.406283 · CH₄ 0.000036 · N₂O 0.000005 | US EPA Emission Factors Hub 2025Table 6 (895.7 lb CO2/MWh) |
The sources in the library
Each source is loaded from the publisher's own files, with its edition and licence recorded. ESGTrack watches each publisher's page for a new edition.
| Source | Publisher | Edition | Factors | Basis | Licence |
|---|---|---|---|---|---|
| CO2 Baseline Database for the Indian Power Sector | Central Electricity Authority, Government of India · publisher page | 22.0 · 2026-08-01 | 123 | CO2 only | Government of India publication — free to use with attribution |
| GHG Emission Factors Hub | U.S. Environmental Protection Agency · publisher page | 2025 · 2025-01-15 | 438 | AR5 (waste: AR4) | U.S. Government work — public domain |
| 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Volume 2: Energy | Intergovernmental Panel on Climate Change · publisher page | 2006 (default factors) · 2006-04-01 | 386 | AR5 and AR6 variants | IPCC — reproduced with attribution for inventory use |
| CO2 Baseline Database v22.0 — power-station data | Central Electricity Authority, Government of India · publisher page | 22.0 · 2026-08-01 | 1,262 | CO2 only | Government of India publication — free to use with attribution |
| Supply Chain Greenhouse Gas Emission Factors v1.3 (NAICS-6, spend-based) | U.S. Environmental Protection Agency · publisher page | 1.3.0 · 2024-07-10 | 985 | AR5 | U.S. Government work — public domain |
| Carbon intensity of electricity generation, by country | Our World in Data (Ember, Energy Institute) · publisher page | 2026 release · 2026-01-01 | 2,191 | Lifecycle (Ember) | CC BY 4.0 — Our World in Data, based on Ember and the Energy Institute |
| 2006 IPCC Guidelines and 2019 Refinement — industrial processes, waste and agriculture defaults | Intergovernmental Panel on Climate Change · publisher page | 2006 / 2019 (Tier 1 defaults) · 2019-05-01 | 4,892 | AR5 and AR6 variants | IPCC — reproduced with attribution; machine-readable values from bonsai-ipcc (MIT) |
Not shown here: India Specific Road Transport Emission Factors (India GHG Program (WRI India, CII, TERI)), its publisher asks that its terms be checked before the values are republished. It is available inside the product.
How to read a factor
A factor only means something with its basis: the unit (per litre, per kilogram, per GJ on a net calorific value basis, per kWh), the gases it covers, the global warming potentials used to combine them, the region and the year. Two factors for "diesel" can legitimately differ by a few per cent because of the calorific value or density assumed. Record which one you used, and keep its reference.
For grid electricity in India, prefer the CEA's weighted average for the activity year if it is published before you report; otherwise the latest available, and say which. The Our World in Data figures are lifecycle intensities, useful for countries without a national factor but not a like-for-like substitute for one.
What this tool does not do
- It shows bundled public sources only — not factors imported on an installation, not a company's private library, and not supplier-specific factors.
- It does not choose a factor for you, convert units, or apply your fuel's measured calorific value — the product does those, with the decision recorded.
- Publishers update their editions; the edition shown here is the one bundled, with its date.
Questions about the factor finder
Which sources are included?
The public sources bundled with ESGTrack: the IPCC 2006 Guidelines and the 2019 Refinement, the Central Electricity Authority's CO2 Baseline Database version 22.0 — both the grid averages and the power-station rates — the US EPA's GHG Emission Factors Hub (2025) and Supply Chain GHG Emission Factors v1.3, and Our World in Data's grid intensities for 212 countries. The India GHG Program's road transport factors are in the product but not shown here, because the programme asks that its terms are checked before its values are republished.
What do the columns mean?
CO₂, CH₄ and N₂O are kilograms of each gas per unit of activity; CO₂e combines them with the global warming potentials named in the GWP column (AR4, AR5, AR6, or "CO₂ only" where the publisher gives only carbon dioxide). The scope column is a hint about where the factor usually belongs; the reference is the publisher's table, so you can check the value at source.
Can I use these factors in my inventory?
They are published values, reproduced with their sources. Whether one fits your activity — the fuel, its calorific value, the year, the country, the basis — is a methodological decision for your inventory, which should record the factor used and why.
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Factors chosen by date, with the decision recorded
ESGTrack applies the factor in force for each month, keeps your own site and company factors first, converts units, and logs every change with its source.