Factor record · international-rail-passenger-km-scope-3-defra-2026last verified 2026-07-31 · DESNZ
0.01135
kgCO2e / passenger.km
Travel by rail — International rail
Business travel · Rail transport · Passenger rail
Vintage
154.48% higher than 2025
0.00446 kgCO2e/passenger.km in 2025
GHG Breakdown
CO₂
0.0113
kgCO2e/passenger.km
CH₄
0.0000
kgCO2e/passenger.km
N₂O
0.0000
kgCO2e/passenger.km
Record
- Identifier
- 8786416f2033
- Activity
- Travel by rail — International rail
- Activity class
- Business travel · Rail transport · Passenger rail
- Category
- transport
- Sub-category
- Rail
- Region
- GBR · United Kingdom
- Value
- 0.01135 kgCO2e/passenger.km
- Scope
- Scope 3*
- Scope 3 category
- Category 6
- Methodology
- activity based
- GWP
- AR5 / GWP100
- Vintage year
- 2026
- Published
- 2026
- Source reference
- Factors by Category sheet, ID 25_315_3148_11_1
- License
- Open Government Licence v3.0
- Verified
- 2026-07-31 · DESNZ
Citation
DEFRA 2026, Travel by rail — International rail, Factors by Category sheet, ID 25_315_3148_11_1
Methodology
Derived from direct physical activity measurements (litres, kilometres, kilograms). The most accurate approach where activity data exists.
Notes
* Scope 3 boundary · Use this factor for Scope 3 Category 6 passenger rail journeys undertaken for business when the rail service is outside the reporting organisation’s ownership or control. Enter passenger-kilometres and choose national rail, international rail, light rail and tram, or London Underground to match the journey. The matching well-to-tank rail record is a separate Scope 3 Category 6 upstream-fuel component; add it when reporting both direct and well-to-tank emissions.
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Browse full libraryDepartment for Energy Security and Net Zero · 2026 · Open Government Licence v3.0Back to the library