Emission factor from JRC-IDEES v2023-1.00
Powered two-wheelers - real-world
Portugal · Combustion · 2023 onwards
Value per passenger carried one kilometre
0.0782kgCO₂e/p.km
Fossil only · CO₂ only
- LoadHow full a lorry, train or ship runs with goods. A passenger factor counts passengers or vehicles, not tonnes, so no load applies.
- Not applicable
- Vehicle sizeThe vehicle's class, by weight or capacity. JRC-IDEES does not say which size this factor assumes.
- Not stated
- Distance bandFlights are priced by distance band, because take-off and climb burn a large share of a short flight's fuel. Road, rail and sea factors apply to a trip of any length.
- Any distance, not banded
- Cabin classA business seat takes more of the cabin than an economy one, so it carries more of the flight's emissions. First class on a long-haul flight counts four times economy.
- Not applicable on the road
- Region
- Portugal PT
- Boundary
- Combustion
- Data quality
- MediumRated by us, not by the source
- Licence
- Open · CC BY 4.0
Where 0.0782 comes from
JRC-IDEES prints this factor as a single figure, with no parts to add up.
Reporting this passenger-kilometre under the GHG Protocol
Scope 3, category 6 0.0782
A trip for work is business travel, Scope 3, category 6, whoever books it.
The factor, standardised
Every factor on open-climate.ai answers the same questions in the same words, whatever the publisher. Open any ⓘ for the definition.
Transport › Motorcycle and scooter travel · Portugal · per p.km · Average
Combustion · Fossil only
- BoundaryCombustionDirect emissions from burning the fuel at the point of use, in a boiler, furnace, engine or vehicle (for a vehicle, tank-to-wheel). Learn more
- Combustion
- Fuel combustion
- GWP methodWhich IPCC assessment report's warming potentials convert each gas to CO₂e, and over how many years the warming is counted (GWP100: 100 years). Learn more
- None: the value counts CO₂ alone
- CO₂ weighs 1 in every IPCC report, so no GWP applies
- CO₂e basisWhich carbon the CO₂e counts. Fossil only leaves out biogenic CO₂ and land use; net total counts every pool, net of removals. The same activity on two bases is two different numbers. Learn more
- Fossil only
- All of it is CO₂
Medium quality · Open licence · 2000 to now
All values
24 values, one per year back to 2000. Every one is fossil only, so the years compare directly.
2023 onwards0.0782Default value
- Default: what search and the API return when you ask for nothing specific
What this number covers
The path of one passenger-kilometre, from the oil well to the end of the trip.
Vehicle operation
Burning the fuel on the road, spread over the average load
Included0.0782Effect at altitude
Contrails and other warming from burning fuel high up. Flights only.
Not applicable on the roadYour trip
1 passenger carried 1 km. The factor is per passenger-kilometre.
= 0.0782
Outside this boundary
- Upstream fuel (well-to-tank)
- Building the vehicle
- Roads and depots
This factor counts the fuel the vehicle burns, not the vehicle itself or the infrastructure it runs on. Some libraries price building the vehicle as a factor of its own.
Gases in vehicle operation
Basis: Fossil onlyFossil carbon only: biogenic CO₂, methane from biogenic sources and land-use change are left out. Learn more
- Fossil CO₂0.0782
The CO₂e counts fossil carbon only; biogenic CO₂, biogenic methane and land-use carbon are left out.
From JRC-IDEES's record to a comparable factor
JRC-IDEES publishes this factor as one record. Here is each field as printed and what open-climate.ai made of it.
About this factor
JRC-IDEES gives no description for this factor. Filed under Transport › Road transport › Passenger transport › Powered two-wheelers.
Source and licence
- Publisher
- European Commission, Joint Research Centre (JRC-IDEES)
- Library
- JRC-IDEES v2023-1.00
- Record
- EMIint.gCO2_per_pkm.PT.Tr.Road.Passenger.P2W
- Published
- 6 November 2025
The values and their metadata are served in full and may be reused with credit to the publisher.
Cite this factor
© European Union, 1995-2026. JRC-IDEES-2023 (Integrated Database of the European Energy System), European Commission, Joint Research Centre, v2023-1.00. CC BY 4.0. Normalised by open-climate.ai, https://open-climate.ai/factors/libraries/jrc_idees/ (CC BY 4.0). https://open-climate.ai/factors/ef-jrcidees-powered_twowheelers-pt-pkm-combustion-4f2e79b5/?v=efv1-d7b44feed57fdd9b20a091214c0b9b22
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