Changes in PRIMAP-hist v2.7_final compared to v2.6.1_final for Switzerland

2025-09-11

Johannes Gütschow

Change analysis for Switzerland for PRIMAP-hist v2.7_final compared to v2.6.1_final

Overview over emissions by sector and gas

The following figures show the aggregate national total emissions excluding LULUCF AR6GWP100 for the country reported priority scenario. The dotted linesshow the v2.6.1_final data.

The following figures show the aggregate national total emissions excluding LULUCF AR6GWP100 for the third party priority scenario. The dotted linesshow the v2.6.1_final data.

Overview over changes

In the country reported priority scenario we have the following changes for aggregate Kyoto GHG and national total emissions excluding LULUCF (M.0.EL):

  • Emissions in 2023 have changed by -1.8%% (-763.08 Gg CO2 / year)
  • Emissions in 1990-2023 have changed by 0.4%% (205.56 Gg CO2 / year)

In the third party priority scenario we have the following changes for aggregate Kyoto GHG and national total emissions excluding LULUCF (M.0.EL):

  • Emissions in 2023 have changed by 2.3%% (958.73 Gg CO2 / year)
  • Emissions in 1990-2023 have changed by 0.0%% (13.71 Gg CO2 / year)

Most important changes per scenario and time frame

In the country reported priority scenario the following sector-gas combinations have the highest absolute impact on national total KyotoGHG (AR6GWP100) emissions in 2023 (top 5):

  • 1: 1.A, CO2 with -636.83 Gg CO2 / year (-2.1%)
  • 2: 2, CO2 with -158.16 Gg CO2 / year (-7.9%)
  • 3: M.AG.ELV, N2O with 93.30 Gg CO2 / year (5.8%)
  • 4: 3.A, CH4 with -30.60 Gg CO2 / year (-0.7%)
  • 5: 1.A, N2O with -8.95 Gg CO2 / year (-3.6%)

In the country reported priority scenario the following sector-gas combinations have the highest absolute impact on national total KyotoGHG (AR6GWP100) emissions in 1990-2023 (top 5):

  • 1: M.AG.ELV, N2O with 210.66 Gg CO2 / year (12.6%)
  • 2: 2, CO2 with -4.62 Gg CO2 / year (-0.2%)
  • 3: 1.A, CO2 with 3.30 Gg CO2 / year (0.0%)
  • 4: 1.A, N2O with -1.06 Gg CO2 / year (-0.4%)
  • 5: 2, HFCS (AR6GWP100) with -0.97 Gg CO2 / year (-0.1%)

In the third party priority scenario the following sector-gas combinations have the highest absolute impact on national total KyotoGHG (AR6GWP100) emissions in 2023 (top 5):

  • 1: 1.A, CO2 with 956.93 Gg CO2 / year (3.2%)
  • 2: 2, CO2 with 1.64 Gg CO2 / year (0.1%)
  • 3: 5, CO2 with 0.15 Gg CO2 / year (1.9%)
  • 4: 5, CH4 with 0.01 Gg CO2 / year (1.8%)
  • 5: 1.B.2, N2O with -0.00 Gg CO2 / year (-100.0%)

In the third party priority scenario the following sector-gas combinations have the highest absolute impact on national total KyotoGHG (AR6GWP100) emissions in 1990-2023 (top 5):

  • 1: 1.A, CO2 with 13.65 Gg CO2 / year (0.0%)
  • 2: 2, CO2 with 0.05 Gg CO2 / year (0.0%)
  • 3: 5, CO2 with 0.00 Gg CO2 / year (0.0%)
  • 4: 5, CH4 with 0.00 Gg CO2 / year (0.0%)
  • 5: 1.B.2, N2O with -0.00 Gg CO2 / year (-0.1%)

Notes on data changes

Here we list notes explaining important emissions changes for the country.

  • Data from BTR1 has been replaced by data from the 2025 National Inventory Submission. This leads to changes in several sectors and gases which are small in terms of total emissions.
    • The main change for 2023 is a 2.1% reduction in energy CO2 emissions where 2023 growth rates in the CR data are lower than the growth rates in EI2024 used for extrapolation in PRIMAP-hist v2.6.1.
    • N2O emissions in M.AG.ELV are consistently higher because of updated activity data, most prominent for emissions from crop residues.
    • 2023 emissions for several IPPU sectors and CO2 and CH4 have changed because data based on extrapolation with third party growth rates has been replaced by country reported data. In most cases emissions have dropped.
  • Changes in the TP scenario are very small and mainly come from the updated EI data for energy CO2.

Changes by sector and gas

For each scenario and time frame the changes are displayed for all individual sectors and all individual gases. In the sector plot we use aggregate Kyoto GHGs in AR6GWP100. In the gas plot we usenational total emissions without LULUCF.

country reported scenario

2023


1990-2023


third party scenario

2023


1990-2023


Detailed changes for the scenarios:

country reported scenario (HISTCR):

Most important changes per time frame

For 2023 the following sector-gas combinations have the highest absolute impact on national total KyotoGHG (AR6GWP100) emissions in 2023 (top 5):

  • 1: 1.A, CO2 with -636.83 Gg CO2 / year (-2.1%)
  • 2: 2, CO2 with -158.16 Gg CO2 / year (-7.9%)
  • 3: M.AG.ELV, N2O with 93.30 Gg CO2 / year (5.8%)
  • 4: 3.A, CH4 with -30.60 Gg CO2 / year (-0.7%)
  • 5: 1.A, N2O with -8.95 Gg CO2 / year (-3.6%)

For 1990-2023 the following sector-gas combinations have the highest absolute impact on national total KyotoGHG (AR6GWP100) emissions in 1990-2023 (top 5):

  • 1: M.AG.ELV, N2O with 210.66 Gg CO2 / year (12.6%)
  • 2: 2, CO2 with -4.62 Gg CO2 / year (-0.2%)
  • 3: 1.A, CO2 with 3.30 Gg CO2 / year (0.0%)
  • 4: 1.A, N2O with -1.06 Gg CO2 / year (-0.4%)
  • 5: 2, HFCS (AR6GWP100) with -0.97 Gg CO2 / year (-0.1%)

Changes in the main sectors for aggregate KyotoGHG (AR6GWP100) are

  • 1: Total sectoral emissions in 2022 are 31233.07 Gg CO2 / year which is 74.2% of M.0.EL emissions. 2023 Emissions have changed by -2.1% (-659.41 Gg CO2 / year). 1990-2023 Emissions have changed by 0.0% (1.06 Gg CO2 / year). For 2023 the changes per gas are:

    The changes come from the following subsectors:
    • 1.A: Total sectoral emissions in 2022 are 31169.16 Gg CO2 / year which is 99.8% of category 1 emissions. 2023 Emissions have changed by -2.1% (-648.31 Gg CO2 / year). 1990-2023 Emissions have changed by 0.0% (1.40 Gg CO2 / year). For 2023 the changes per gas are:

      There is no subsector information available in PRIMAP-hist.
    • 1.B.2: Total sectoral emissions in 2022 are 63.91 Gg CO2 / year which is 0.2% of category 1 emissions. 2023 Emissions have changed by -16.6% (-11.10 Gg CO2 / year). 1990-2023 Emissions have changed by -0.3% (-0.34 Gg CO2 / year). For 2023 the changes per gas are:

      There is no subsector information available in PRIMAP-hist.
  • 2: Total sectoral emissions in 2022 are 3640.52 Gg CO2 / year which is 8.6% of M.0.EL emissions. 2023 Emissions have changed by -4.4% (-158.30 Gg CO2 / year). 1990-2023 Emissions have changed by -0.1% (-5.55 Gg CO2 / year). For 2023 the changes per gas are:

  • M.AG: Total sectoral emissions in 2022 are 6073.39 Gg CO2 / year which is 14.4% of M.0.EL emissions. 2023 Emissions have changed by 1.0% (57.82 Gg CO2 / year). 1990-2023 Emissions have changed by 3.4% (210.05 Gg CO2 / year). For 1990-2023 the changes per gas are:

    The changes come from the following subsectors:
    • 3.A: Total sectoral emissions in 2022 are 4327.73 Gg CO2 / year which is 71.3% of category M.AG emissions. 2023 Emissions have changed by -0.7% (-31.76 Gg CO2 / year). 1990-2023 Emissions have changed by -0.0% (-0.50 Gg CO2 / year).
    • M.AG.ELV: Total sectoral emissions in 2022 are 1745.66 Gg CO2 / year which is 28.7% of category M.AG emissions. 2023 Emissions have changed by 5.4% (89.58 Gg CO2 / year). 1990-2023 Emissions have changed by 12.2% (210.55 Gg CO2 / year). For 2023 the changes per gas are:

      For 1990-2023 the changes per gas are:

      There is no subsector information available in PRIMAP-hist.
  • 4: Total sectoral emissions in 2022 are 1140.52 Gg CO2 / year which is 2.7% of M.0.EL emissions. 2023 Emissions have changed by -0.3% (-3.34 Gg CO2 / year). 1990-2023 Emissions have changed by 0.0% (0.00 Gg CO2 / year).
  • 5: Total sectoral emissions in 2022 are 9.10 Gg CO2 / year which is 0.0% of M.0.EL emissions. 2023 Emissions have changed by 1.7% (0.15 Gg CO2 / year). 1990-2023 Emissions have changed by 0.0% (0.00 Gg CO2 / year).

third party scenario (HISTTP):

Most important changes per time frame

For 2023 the following sector-gas combinations have the highest absolute impact on national total KyotoGHG (AR6GWP100) emissions in 2023 (top 5):

  • 1: 1.A, CO2 with 956.93 Gg CO2 / year (3.2%)
  • 2: 2, CO2 with 1.64 Gg CO2 / year (0.1%)
  • 3: 5, CO2 with 0.15 Gg CO2 / year (1.9%)
  • 4: 5, CH4 with 0.01 Gg CO2 / year (1.8%)
  • 5: 1.B.2, N2O with -0.00 Gg CO2 / year (-100.0%)

For 1990-2023 the following sector-gas combinations have the highest absolute impact on national total KyotoGHG (AR6GWP100) emissions in 1990-2023 (top 5):

  • 1: 1.A, CO2 with 13.65 Gg CO2 / year (0.0%)
  • 2: 2, CO2 with 0.05 Gg CO2 / year (0.0%)
  • 3: 5, CO2 with 0.00 Gg CO2 / year (0.0%)
  • 4: 5, CH4 with 0.00 Gg CO2 / year (0.0%)
  • 5: 1.B.2, N2O with -0.00 Gg CO2 / year (-0.1%)

Changes in the main sectors for aggregate KyotoGHG (AR6GWP100) are

  • 1: Total sectoral emissions in 2022 are 32657.26 Gg CO2 / year which is 76.2% of M.0.EL emissions. 2023 Emissions have changed by 3.0% (956.93 Gg CO2 / year). 1990-2023 Emissions have changed by 0.0% (13.65 Gg CO2 / year). For 2023 the changes per gas are:

    The changes come from the following subsectors:
    • 1.A: Total sectoral emissions in 2022 are 31571.38 Gg CO2 / year which is 96.7% of category 1 emissions. 2023 Emissions have changed by 3.1% (956.93 Gg CO2 / year). 1990-2023 Emissions have changed by 0.0% (13.65 Gg CO2 / year). For 2023 the changes per gas are:

      There is no subsector information available in PRIMAP-hist.
    • 1.B.1: Total sectoral emissions in 2022 are 0.00 Gg CO2 / year which is 0.0% of category 1 emissions. 2023 Emissions have changed by 0.0% (0.00 Gg CO2 / year). 1990-2023 Emissions have changed by 0.0% (0.00 Gg CO2 / year).
    • 1.B.2: Total sectoral emissions in 2022 are 1085.87 Gg CO2 / year which is 3.3% of category 1 emissions. 2023 Emissions have changed by 0.0% (0.00 Gg CO2 / year). 1990-2023 Emissions have changed by 0.0% (0.00 Gg CO2 / year).
  • 2: Total sectoral emissions in 2022 are 3873.32 Gg CO2 / year which is 9.0% of M.0.EL emissions. 2023 Emissions have changed by 0.0% (1.64 Gg CO2 / year). 1990-2023 Emissions have changed by 0.0% (0.05 Gg CO2 / year).
  • M.AG: Total sectoral emissions in 2022 are 5821.76 Gg CO2 / year which is 13.6% of M.0.EL emissions. 2023 Emissions have changed by 0.0% (0.00 Gg CO2 / year). 1990-2023 Emissions have changed by 0.0% (0.00 Gg CO2 / year).
  • 4: Total sectoral emissions in 2022 are 416.26 Gg CO2 / year which is 1.0% of M.0.EL emissions. 2023 Emissions have changed by 0.0% (0.00 Gg CO2 / year). 1990-2023 Emissions have changed by 0.0% (0.00 Gg CO2 / year).
  • 5: Total sectoral emissions in 2022 are 96.73 Gg CO2 / year which is 0.2% of M.0.EL emissions. 2023 Emissions have changed by 0.2% (0.16 Gg CO2 / year). 1990-2023 Emissions have changed by 0.0% (0.00 Gg CO2 / year).