Change analysis for Iceland 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 4.3%% (195.14 Gg CO2 / year)
• Emissions in 1990-2023 have changed by 2.4%% (105.83 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 5.7%% (315.94 Gg CO2 / year)
• Emissions in 1990-2023 have changed by 0.2%% (8.55 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: M.AG.ELV, N2O with 121.78 Gg CO2 / year (57.5%)
• 2: 1.A, CO2 with 73.84 Gg CO2 / year (4.9%)
• 3: 2, CO2 with 20.99 Gg CO2 / year (1.2%)
• 4: 1.B.3, CO2 with -20.60 Gg CO2 / year (-10.7%)
• 5: 3.A, CH4 with -14.42 Gg CO2 / year (-3.9%)

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 123.19 Gg CO2 / year (57.5%)
• 2: 3.A, CH4 with -18.54 Gg CO2 / year (-4.4%)
• 3: 1.A, CO2 with 2.18 Gg CO2 / year (0.1%)
• 4: 4, CH4 with 2.15 Gg CO2 / year (0.8%)
• 5: 2, PFCS (AR6GWP100) with -1.74 Gg CO2 / year (-1.2%)

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 336.58 Gg CO2 / year (13.1%)
• 2: 1.B.3, CO2 with -20.60 Gg CO2 / year (-10.7%)
• 3: 1.B.3, CH4 with -0.22 Gg CO2 / year (-4.8%)
• 4: 1.B.2, CH4 with 0.20 Gg CO2 / year (34.7%)
• 5: 2, CO2 with -0.01 Gg CO2 / year (-0.0%)

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 9.90 Gg CO2 / year (0.5%)
• 2: 1.B.3, CO2 with -1.35 Gg CO2 / year (-1.0%)
• 3: 1.B.3, CH4 with -0.01 Gg CO2 / year (-0.3%)
• 4: 1.B.2, CH4 with 0.00 Gg CO2 / year (0.7%)
• 5: 2, CO2 with -0.00 Gg CO2 / year (-0.0%)

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 in the CR time-series is a 57% increase in N2O from M.AG.ELV (2023 and cumulative). This comes from a three-fold increase in the emissions factor for the cultivation of organic soils.
  • Energy CO2 is higher for 2023 because EI2024 showed a strong decline in emissions which is weaker in the new CR data.
  • Further smaller changes are for CO2 in IPPU, fugitive emissions, livestock CH4 and further sectors and are due to updated data and emissions factors.
• The main change for the TP time-series is a 13% increase in 2023 energy CO2 emissions. While EI2024 data shows a decline for 2023, EI2025 shows a strong emission increase.
  • Further smaller changes are for fugitive emissions, where no third party data exists and CR data has updated emissions for the latest years.

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: M.AG.ELV, N2O with 121.78 Gg CO2 / year (57.5%)
• 2: 1.A, CO2 with 73.84 Gg CO2 / year (4.9%)
• 3: 2, CO2 with 20.99 Gg CO2 / year (1.2%)
• 4: 1.B.3, CO2 with -20.60 Gg CO2 / year (-10.7%)
• 5: 3.A, CH4 with -14.42 Gg CO2 / year (-3.9%)

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 123.19 Gg CO2 / year (57.5%)
• 2: 3.A, CH4 with -18.54 Gg CO2 / year (-4.4%)
• 3: 1.A, CO2 with 2.18 Gg CO2 / year (0.1%)
• 4: 4, CH4 with 2.15 Gg CO2 / year (0.8%)
• 5: 2, PFCS (AR6GWP100) with -1.74 Gg CO2 / year (-1.2%)

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

• 1: Total sectoral emissions in 2022 are 1807.53 Gg CO2 / year which is 37.4% of M.0.EL emissions. 2023 Emissions have changed by 3.2% (55.04 Gg CO2 / year). 1990-2023 Emissions have changed by 0.0% (0.87 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 1628.67 Gg CO2 / year which is 100.0% of category 1 emissions. 2023 Emissions have changed by 5.0% (75.67 Gg CO2 / year). 1990-2023 Emissions have changed by 0.1% (2.23 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 0.73 Gg CO2 / year which is 0.0% of category 1 emissions. 2023 Emissions have changed by 34.6% (0.20 Gg CO2 / year). 1990-2023 Emissions have changed by 0.7% (0.00 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 2050.41 Gg CO2 / year which is 42.4% of M.0.EL emissions. 2023 Emissions have changed by 1.2% (23.71 Gg CO2 / year). 1990-2023 Emissions have changed by -0.1% (-1.40 Gg CO2 / year).
• M.AG: Total sectoral emissions in 2022 are 720.99 Gg CO2 / year which is 14.9% of M.0.EL emissions. 2023 Emissions have changed by 18.2% (107.82 Gg CO2 / year). 1990-2023 Emissions have changed by 16.3% (104.60 Gg CO2 / year). For 2023 the changes per gas are:
  
  For 1990-2023 the changes per gas are:
  
  The changes come from the following subsectors:
  • 3.A: Total sectoral emissions in 2022 are 368.50 Gg CO2 / year which is 51.1% of category M.AG emissions. 2023 Emissions have changed by -3.9% (-14.43 Gg CO2 / year). 1990-2023 Emissions have changed by -4.4% (-18.68 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.
  • M.AG.ELV: Total sectoral emissions in 2022 are 352.49 Gg CO2 / year which is 48.9% of category M.AG emissions. 2023 Emissions have changed by 55.8% (122.25 Gg CO2 / year). 1990-2023 Emissions have changed by 56.5% (123.28 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 245.90 Gg CO2 / year which is 5.1% of M.0.EL emissions. 2023 Emissions have changed by 3.8% (8.57 Gg CO2 / year). 1990-2023 Emissions have changed by 0.7% (1.76 Gg CO2 / year). For 2023 the changes per gas are:
  
  
• 5: Total sectoral emissions in 2022 are 5.41 Gg CO2 / year which is 0.1% 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).

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 336.58 Gg CO2 / year (13.1%)
• 2: 1.B.3, CO2 with -20.60 Gg CO2 / year (-10.7%)
• 3: 1.B.3, CH4 with -0.22 Gg CO2 / year (-4.8%)
• 4: 1.B.2, CH4 with 0.20 Gg CO2 / year (34.7%)
• 5: 2, CO2 with -0.01 Gg CO2 / year (-0.0%)

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 9.90 Gg CO2 / year (0.5%)
• 2: 1.B.3, CO2 with -1.35 Gg CO2 / year (-1.0%)
• 3: 1.B.3, CH4 with -0.01 Gg CO2 / year (-0.3%)
• 4: 1.B.2, CH4 with 0.00 Gg CO2 / year (0.7%)
• 5: 2, CO2 with -0.00 Gg CO2 / year (-0.0%)

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

• 1: Total sectoral emissions in 2022 are 2941.09 Gg CO2 / year which is 50.4% of M.0.EL emissions. 2023 Emissions have changed by 11.4% (315.95 Gg CO2 / year). 1990-2023 Emissions have changed by 0.4% (8.55 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 2762.23 Gg CO2 / year which is 100.0% of category 1 emissions. 2023 Emissions have changed by 13.0% (336.58 Gg CO2 / year). 1990-2023 Emissions have changed by 0.5% (9.90 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 0.73 Gg CO2 / year which is 0.0% of category 1 emissions. 2023 Emissions have changed by 34.6% (0.20 Gg CO2 / year). 1990-2023 Emissions have changed by 0.7% (0.00 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 2004.44 Gg CO2 / year which is 34.3% of M.0.EL emissions. 2023 Emissions have changed by -0.0% (-0.01 Gg CO2 / year). 1990-2023 Emissions have changed by -0.0% (-0.00 Gg CO2 / year).
• M.AG: Total sectoral emissions in 2022 are 615.30 Gg CO2 / year which is 10.5% 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 272.32 Gg CO2 / year which is 4.7% 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 5.41 Gg CO2 / year which is 0.1% 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).