Value from 2024 onwards
3.22kgCO₂e/kg N
GWP100 · IPCC AR6
- Region
- United Kingdom GB
- Boundary
- Process emissions
- Data quality
- MediumRated by us, not by the source
- Licence
- Open · OGL v3.0
Where 3.22 comes from
NAEI prints this factor as a single figure, with no parts to add up.
Reporting this kilogram under the GHG Protocol
Scope 1 3.22
Gas that escapes from equipment you run is a direct emission, so it is your Scope 1.
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.
Direct emissions › Agricultural process emissions · United Kingdom · per kg N · Average
Process emissions · Excl. biogenic CO₂ · AR6
- BoundaryProcess emissionsThe direct non-combustion emissions of an industrial, agricultural or waste process itself, per unit of its activity: the gas its chemistry or biology releases (CO2 from calcining carbonates or from a reductant, CH4 from enteric fermentation, a flooded paddy or stored manure, N2O from nitrogen applied to soil or from nitric and adipic acid). Learn more
- Process emissions
- NAEI: 3D2b_Agricultural_Soils_Indirect_emissions_from_leaching_and_run
- 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
- IPCC AR6, 100-year horizon
- Re-weighted by open-climate.ai from NAEI's AR5 figure of 3.12 kgCO₂e/kg N
- CO₂e basisWhich carbon the CO₂e counts. Fossil only leaves out biogenic methane, land-use change and biogenic CO₂; excl. biogenic CO₂ counts biogenic methane but not the other two; net total counts every pool, net of removals. The same activity on two bases is two different numbers. Learn more
- Excl. biogenic CO₂FossilBio CH₄Land useBio CO₂GHG Protocol and IPCC inventories
- Split by gas
- Life cycle
- Upstream: not coveredProduction: partly coveredDownstream: not coveredEnd of life: not covered
Medium quality · Open licence · 1990 to now
All values
35 values, one per year back to 1990. Every one is biogenic CO₂ and land use excluded, AR6 GWP100, so the years compare directly.
2024 onwards3.22Default value
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- Default: what search and the API return when you ask for nothing specific
What this number covers
What NAEI counts in the figure for 1 kg N, phase by phase.
Your record
1 kg N in your records. The factor is per kg N.
= 3.22
Outside this boundary
- Power the unit uses
- Fugitive releases
NAEI does not count any of this in the figure for 1 kg N.
Gases
Basis: Excl. biogenic CO₂Biogenic CO₂ and land-use change are left out; fossil CO₂, the other greenhouse gases and methane from biogenic sources are counted. Learn moreFossilBio CH₄Land useBio CO₂GHG Protocol and IPCC inventories
- Nitrous oxide (N₂O)3.22
Each gas is converted to CO₂e with AR6 100-year warming potentials; biogenic CO₂ and land-use carbon are left out, while methane from biogenic sources is counted.
From NAEI's record to a comparable factor
NAEI publishes this factor as one record. Here is each field as printed and what open-climate.ai made of it.
About this factor
NAEI gives no description for this factor. Filed under Agriculture.
Source and licence
- Publisher
- UK National Atmospheric Emissions Inventory (NAEI), compiled for Defra and DESNZ by Ricardo Energy & Environment
- Library
- NAEI 2026
The values and their metadata are served in full and may be reused with credit to the publisher.
Cite this factor
(c) Crown 2026 copyright Defra and DESNZ via naei.energysecurity.gov.uk, licenced under the Open Government Licence (OGL). Normalised by open-climate.ai, https://open-climate.ai/factors/libraries/naei_uk/ (CC BY 4.0). https://open-climate.ai/factors/ef-naeiuk-arable_residue_indirect-gb-kg_n-process_direct-b7009827/?v=efv1-cf9bc2ec8b0d277af08bda3581e8c822
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