Air Emission Accounts – OECD Estimates
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Last update: 25 February 2021 

The OECD methodology takes the emission data from the national greenhouse gas inventories submitted under the United Nations Framework Convention on Climate Change (UNFCCC) as a starting point. The emission data in the inventories are allocated to ISIC rev. 4 industries and households using the correspondence table proposed by Eurostat.

When the correspondence table requires the allocation of an inventory item to more than one industry, the OECD opted for using an allocation method based on output data since output closely correlates with emissions. Specifically, the allocation from one inventory to more-than-one industry is made according to the output share of each industry relative to the total output of those industries involved in the split*.

Data refer to total emissions of carbon dioxide (CO2 emissions from energy use and industrial processes), methane (CH4 emissions from solid waste, livestock, mining of hard coal and lignite, rice paddies, agriculture and leaks from natural gas pipelines) and nitrous oxide (N2O emissions) for greenhouse gas (GHG) emissions.

More detailed information available in the working paper "Towards global SEEA Air Emission Accounts".

*Note that the official air emission accounts for these countries are included in OECD database on air emission accounts (http://stats.oecd.org/Index.aspx?DataSetCode=AEA), thus allowing to assess the accuracy of the OECD estimation methodology.

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Air Emission Accounts – OECD EstimatesContact person/organisation
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Direct source

Last update: 25 February 2021 

The OECD methodology takes the emission data from the national greenhouse gas inventories submitted under the United Nations Framework Convention on Climate Change (UNFCCC) as a starting point. The emission data in the inventories are allocated to ISIC rev. 4 industries and households using the correspondence table proposed by Eurostat.

When the correspondence table requires the allocation of an inventory item to more than one industry, the OECD opted for using an allocation method based on output data since output closely correlates with emissions. Specifically, the allocation from one inventory to more-than-one industry is made according to the output share of each industry relative to the total output of those industries involved in the split*.

Data refer to total emissions of carbon dioxide (CO2 emissions from energy use and industrial processes), methane (CH4 emissions from solid waste, livestock, mining of hard coal and lignite, rice paddies, agriculture and leaks from natural gas pipelines) and nitrous oxide (N2O emissions) for greenhouse gas (GHG) emissions.

More detailed information available in the working paper "Towards global SEEA Air Emission Accounts".

*Note that the official air emission accounts for these countries are included in OECD database on air emission accounts (http://stats.oecd.org/Index.aspx?DataSetCode=AEA), thus allowing to assess the accuracy of the OECD estimation methodology.

Statistical population

DATABASE STRUCTURE
Unit Dimension: Thousands tonnes of CO2 equivalent

Country Dimension
The following countries are included in the database:
Japan (JPN) - United States (USA) -  Kazakhstan (KAZ) -  Russia (RUS) - Ukraine (UKR)

Pollutant Dimension
Carbon dioxide emissions (CO2) - Methane emissions (CH4) - Nitrous oxide emissions (N2O)

Year Dimension
From 2007 onwards

Emissions Dimension
Total: total emissions - Combustion: emissions from fuel combustion only.

Activity Dimension
This dimension allows breaking down air emissions across industries and households' activities.
1) Industries
Industries are broken down using the ISIC rev. 4 classification (http://unstats.un.org/unsd/cr/registry/isic-4.asp).
2) Households
Households' activities are broken down using the COICOP classification (http://unstats.un.org/unsd/cr/registry/regcst.asp?Cl=5).

Key statistical concept
Note that official air emission accounts are included in the OECD database on air emission accounts (http://stats.oecd.org/Index.aspx?DataSetCode=AEA), thus allowing to assess the accuracy of the OECD estimation methodology.
Other comments

Japan: "Electricity, gas, steam and air conditioning supply" (D)  includes "Electricity, gas, steam and air conditioning supply (D), and Water supply; sewerage, waste management and remediation activities (E)".

Kazakhstan: For 2018 estimates, 2017 production values were used as weights for distribution of emissions because 2018 production figures were not yet available.