inventories, climate change and supplementary information of the Kyoto Protocol (KP)
NIR Compiler
1.5 Description of key categories .1 GHG inventory
1.5.1.1 Methodology
The key category analysis is performed according to the 2006 IPCC Guidelines (IPCC 2006, chp. 4) and Decision 24/CP.19 (UNFCCC 2014a, Annex 1, Para. 39) for 1990 and the latest reported year (2014) including all GHG (CO2, CH4, N2O, HFCs, PFCs, SF6 and NF3). A total of 157 categories are used to disaggregate Switzerland’s total GHG emissions for the purpose of this key category analysis. The disaggregation level of the categories is selected based on country-specific relevance, i.e. the most important sources in Switzerland are disaggregated on a more detailed level. Uncertainty data for key category analysis Approach 2 stems from the uncertainty analysis Approach 1 (see chp. 1.6.1.2) and therefore does not incorporate correlations.
Both, Approach 1 (with a proposed threshold of 95%) and Approach 2 (with a proposed threshold of 90%) level and trend assessments are applied, including emissions from sector 4 LULUCF. Indirect CO2 and N2O emissions are not considered for the key category
analysis.
For the full key category analysis including all 157 categories, see Annex 1.
1.5.1.2 KCA (including LULUCF categories)
A complete overview of the key category analysis for the inventory 1990–2014, also including all categories which are not key, is given in Annex 1, Table A – 1. In the following, the results for Approach 1 and Approach 2 are presented, focussing on key categories only.
Approach 1
For 2014, among the total of 157 categories, 30 are identified as level key categories under Approach 1 (Table 1-4).
Half of the key categories belong to sector 1 Energy, accounting for the largest share of CO2
equivalent emissions in 2014. The other key categories are more or less equally distributed between sectors 2 Industrial processes and product use, 3 Agriculture, 4 LULUCF and 5 Waste.
There are three major key sources each contributing more than 10% to the level assessment, all being part of sector 1 Energy:
1A3b Fuel Combustion, Road Transportation, Gasoline, CO2
1A3b Fuel Combustion, Road Transportation, Diesel, CO2
1A4b Fuel Combustion, Other Sectors, Residential, Liquid Fuels, CO2
Within the ten most relevant key categories (level contribution), only 3A Enteric fermentation and 2A1 Cement production are not part of sector 1 Energy.
1 Introduction: 1.5 Description of key categories
Table 1-4 Switzerland’s Approach 1 level key categories for the year 2014 including LULUCF categories, sorted by emission contribution to the national total.
For the base year 1990, 31 categories are identified as level key categories under Approach 1 (Table 1-5). The following categories are key according to level in 1990, but not in 2014:
1A3a Domestic aviation CO2
1A5 Other, Liquid fuels, CO2
2A4 Other process uses of carbonates, CO2
2C3 Aluminium production, CO2
4G Harvested wood products, CO2
On the other hand, the following categories are key according to level in 2014, but not in 1990:
2F1 Refrigeration and air conditioning, HFC
2G Other product manufacture and use, SF6
4C2 Land converted to grassland, CO2
5D Wastewater treatment and discharge, CH4
No. GHG
1 1A3b 1. Energy A. Fuel combustion activities 3. Transport; Road transportation Gasoline CO2 8276.97 15.8% 15.8%
2 1A3b 1. Energy A. Fuel combustion activities 3. Transport; Road transportation Diesel CO2 7297.02 14.0% 29.8%
3 1A4b 1. Energy A. Fuel combustion activities 4. Other sectors; Residential Liquid Fuels CO2 5549.06 10.6% 40.4%
4 3A 3. Agriculture A. Enteric fermentation CH4 3365.33 6.4% 46.9%
5 1A4a 1. Energy A. Fuel combustion activities 4. Other sectors; Commercial/institutional Liquid Fuels CO2 2538.93 4.9% 51.7%
6 1A4b 1. Energy A. Fuel combustion activities 4. Other sectors; Residential Gaseous Fuels CO2 2402.23 4.6% 56.3%
7 1A1 1. Energy A. Fuel combustion activities 1. Energy industries Other Fuels CO2 2318.49 4.4% 60.8%
8 1A2 1. Energy A. Fuel combustion activities 2. Manufacturing industries and construction Gaseous Fuels CO2 2278.18 4.4% 65.1%
9 1A2 1. Energy A. Fuel combustion activities 2. Manufacturing industries and construction Liquid Fuels CO2 1912.91 3.7% 68.8%
10 2A1 2. Industrial processes and product use
A. Mineral industry 1. Cement production CO2 1858.10 3.6% 72.4%
11 4A1 4. LULUCF A. Forest land 1. Forest land remaining forest land CO2 -1674.57 3.2% 75.6%
12 2F1 2. Industrial processes and product use
F. Product uses as substitutes for ODS 1. Refrigeration and air conditioning HFC 1398.55 2.7% 78.3%
13 1A4a 1. Energy A. Fuel combustion activities 4. Other sectors; Commercial/institutional Gaseous Fuels CO2 1244.62 2.4% 80.6%
14 3Da 3. Agriculture D. Agricultural soils; Direct emissions from managed soils
N2O 1111.39 2.1% 82.8%
15 1A1 1. Energy A. Fuel combustion activities 1. Energy industries Liquid Fuels CO2 965.17 1.8% 84.6%
16 3B 3. Agriculture B. Manure management CH4 782.15 1.5% 86.1%
17 1A2 1. Energy A. Fuel combustion activities 2. Manufacturing industries and construction Solid Fuels CO2 521.18 1.0% 87.1%
18 4A2 4. LULUCF A. Forest land 2. Land converted to forest land CO2 -503.37 1.0% 88.1%
19 3Db 3. Agriculture D. Agricultural soils; Indirect emissions from managed soils
N2O 499.67 1.0% 89.0%
20 1A4c 1. Energy A. Fuel combustion activities 4. Other sectors; Agriculture/forestry/fishing Liquid Fuels CO2 410.12 0.8% 89.8%
21 5A 5. Waste A. Solid waste disposal CH4 367.74 0.7% 90.5%
22 1A2 1. Energy A. Fuel combustion activities 2. Manufacturing industries and construction Other Fuels CO2 366.03 0.7% 91.2%
23 4B1 4. LULUCF B. Cropland 1. Cropland remaining cropland CO2 332.11 0.6% 91.9%
24 4E2 4. LULUCF E. Settlements 2. Land converted to settlements CO2 318.25 0.6% 92.5%
25 1A1 1. Energy A. Fuel combustion activities 1. Energy industries Gaseous Fuels CO2 288.18 0.6% 93.0%
26 3B5 3. Agriculture B. Manure management 5. Indirect N2O emissions N2O 283.54 0.5% 93.6%
27 2G 2. Industrial processes and product use
G. Other product manufacture and use SF6 204.26 0.4% 93.9%
28 1B2 1. Energy B. Fugitive emissions from fuels 2. Oil and natural gas and other emissions from energy production
CH4 196.87 0.4% 94.3%
29 4C2 4. LULUCF C. Grassland 2. Land converted to grassland CO2 183.10 0.4% 94.7%
30 5D 5. Waste D. Wastewater treatment and discharge CH4 174.59 0.3% 95.0%
IPCC source categories and fuels if applicable
Approach 1 key category analysis - Level Assessment for the year 2014
1 Introduction: 1.5 Description of key categories
Table 1-5 Switzerland’s Approach 1 level key categories for the base year 1990 including LULUCF categories, sorted by emission contribution to the national total.
Regarding the trend assessment between the base year 1990 and the most recent year 2014, 33 categories are identified as trend key categories under Approach 1 (Table 1-6).
No. GHG 1 1A3b 1. Energy A. Fuel combustion activities 3. Transport; Road transportation Gasoline CO2 11334.49 20.0% 20.0%
2 1A4b 1. Energy A. Fuel combustion activities 4. Other sectors; Residential Liquid Fuels CO2 10098.96 17.8% 37.7%
3 1A4a 1. Energy A. Fuel combustion activities 4. Other sectors; Commercial/institutional Liquid Fuels CO2 4259.54 7.5% 45.3%
4 1A2 1. Energy A. Fuel combustion activities 2. Manufacturing industries and construction Liquid Fuels CO2 3890.57 6.9% 52.1%
5 3A 3. Agriculture A. Enteric fermentation CH4 3584.87 6.3% 58.4%
6 1A3b 1. Energy A. Fuel combustion activities 3. Transport; Road transportation Diesel CO2 2632.66 4.6% 63.1%
7 2A1 2. Industrial processes and product use
A. Mineral industry 1. Cement production CO2 2524.45 4.4% 67.5%
8 1A1 1. Energy A. Fuel combustion activities 1. Energy industries Other Fuels CO2 1491.86 2.6% 70.1%
9 1A4b 1. Energy A. Fuel combustion activities 4. Other sectors; Residential Gaseous Fuels CO2 1451.63 2.6% 72.7%
10 1A2 1. Energy A. Fuel combustion activities 2. Manufacturing industries and construction Solid Fuels CO2 1274.70 2.2% 74.9%
11 3Da 3. Agriculture D. Agricultural soils; Direct emissions from managed soils
N2O 1239.22 2.2% 77.1%
12 4G 4. LULUCF G. Harvested wood products CO2 -1231.92 2.2% 79.3%
13 1A2 1. Energy A. Fuel combustion activities 2. Manufacturing industries and construction Gaseous Fuels CO2 1059.63 1.9% 81.1%
14 1A4a 1. Energy A. Fuel combustion activities 4. Other sectors; Commercial/institutional Gaseous Fuels CO2 981.49 1.7% 82.9%
15 3B 3. Agriculture B. Manure management CH4 923.97 1.6% 84.5%
16 5A 5. Waste A. Solid waste disposal CH4 763.39 1.3% 85.8%
17 1A1 1. Energy A. Fuel combustion activities 1. Energy industries Liquid Fuels CO2 687.24 1.2% 87.1%
18 3Db 3. Agriculture D. Agricultural soils; Indirect emissions from managed soils
N2O 658.57 1.2% 88.2%
19 4A2 4. LULUCF A. Forest land 2. Land converted to forest land CO2 -570.45 1.0% 89.2%
20 1A4c 1. Energy A. Fuel combustion activities 4. Other sectors; Agriculture/forestry/fishing Liquid Fuels CO2 485.09 0.9% 90.1%
21 4E2 4. LULUCF E. Settlements 2. Land converted to settlements CO2 394.54 0.7% 90.8%
22 4A1 4. LULUCF A. Forest land 1. Forest land remaining forest land CO2 -369.23 0.7% 91.4%
23 4B1 4. LULUCF B. Cropland 1. Cropland remaining cropland CO2 364.91 0.6% 92.1%
24 1B2 1. Energy B. Fugitive emissions from fuels 2. Oil and natural gas and other emissions from energy production
CH4 319.77 0.6% 92.6%
25 1A3a 1. Energy A. Fuel combustion activities 3. Transport; Domestic aviation Kerosene CO2 252.55 0.4% 93.1%
26 1A1 1. Energy A. Fuel combustion activities 1. Energy industries Gaseous Fuels CO2 243.40 0.4% 93.5%
27 3B5 3. Agriculture B. Manure management 5. Indirect N2O emissions N2O 242.32 0.4% 93.9%
28 1A5 1. Energy A. Fuel combustion activities 5. Other Liquid Fuels CO2 217.65 0.4% 94.3%
29 1A2 1. Energy A. Fuel combustion activities 2. Manufacturing industries and construction Other Fuels CO2 196.02 0.3% 94.7%
30 2A4 2. Industrial processes and product use
A. Mineral industry 4. Other process uses of carbonates CO2 156.11 0.3% 94.9%
31 2C3 2. Industrial processes and product use
C. Metal industry 3. Aluminium production CO2 139.26 0.2% 95.2%
IPCC source categories and fuels if applicable
Approach 1 key category analysis - Level Assessment for the base year 1990
1 Introduction: 1.5 Description of key categories
Table 1-6 Switzerland’s Approach 1 trend key categories between 1990 and 2014 including LULUCF categories, sorted by contribution to the trend assessment.
Approach 2
Given that the threshold is set at 90%, the number of key categories is smaller under Approach 2 compared to Approach 1. 26 out of 157 categories are identified as key categories for both, 1990 and 2014 (Table 1-7, Table 1-8).
The most relevant sources in 2014 contributing more than 10% to the level assessment are the following:
3Da Direct emissions from managed soils, N2O
4C1 Grassland remaining grassland, CO2
3Db Indirect emissions from managed soils, N2O
Several categories being key categories in Approach 1 are not key anymore when assessed with Approach 2. Nevertheless, there are seven categories only being key under Approach 2 (year 2014):
4C1 Grassland remaining grassland, CO2
5D Wastewater treatment and discharge, N2O
4D1 Wetlands remaining wetlands, CO2
4 III N mineralization, N2O
1 1A3b 1. Energy A. Fuel combustion activities 3. Transport; Road transportation Diesel CO2 2632.66 7297.02 0.08637 19.0% 19.0%
2 1A4b 1. Energy A. Fuel combustion activities 4. Other sectors; Residential Liquid Fuels CO2 10098.96 5549.06 0.06395 14.1% 33.1%
3 1A3b 1. Energy A. Fuel combustion activities 3. Transport; Road transportation Gasoline CO2 11334.49 8276.97 0.03568 7.9% 41.0%
4 1A2 1. Energy A. Fuel combustion activities 2. Manufacturing industries and construction
Liquid Fuels CO2 3890.57 1912.91 0.02860 6.3% 47.3%
5 2F1 2. Industrial processes and product use
F. Product uses as substitutes for ODS
1. Refrigeration and air conditioning HFC 0.02 1398.55 0.02463 5.4% 52.7%
6 1A4a 1. Energy A. Fuel combustion activities 4. Other sectors;
Commercial/institutional
Liquid Fuels CO2 4259.54 2538.93 0.02348 5.2% 57.9%
7 1A2 1. Energy A. Fuel combustion activities 2. Manufacturing industries and construction
Gaseous Fuels CO2 1059.63 2278.18 0.02316 5.1% 63.0%
8 4A1 4. LULUCF A. Forest land 1. Forest land remaining forest land CO2 -369.23 -1674.57 0.02240 4.9% 67.9%
9 4G 4. LULUCF G. Harvested wood products CO2 -1231.92 -105.80 0.02181 4.8% 72.7%
10 1A4b 1. Energy A. Fuel combustion activities 4. Other sectors; Residential Gaseous Fuels CO2 1451.63 2402.23 0.01907 4.2% 76.9%
11 1A1 1. Energy A. Fuel combustion activities 1. Energy industries Other Fuels CO2 1491.86 2318.49 0.01695 3.7% 80.6%
12 1A2 1. Energy A. Fuel combustion activities 2. Manufacturing industries and construction
Solid Fuels CO2 1274.70 521.18 0.01123 2.5% 83.1%
13 2A1 2. Industrial processes and product use
A. Mineral industry 1. Cement production CO2 2524.45 1858.10 0.00769 1.7% 84.8%
14 1A4a 1. Energy A. Fuel combustion activities 4. Other sectors;
Commercial/institutional
Gaseous Fuels CO2 981.49 1244.62 0.00621 1.4% 86.2%
15 1A1 1. Energy A. Fuel combustion activities 1. Energy industries Liquid Fuels CO2 687.24 965.17 0.00600 1.3% 87.5%
16 5A 5. Waste A. Solid waste disposal CH4 763.39 367.74 0.00574 1.3% 88.8%
17 1A2 1. Energy A. Fuel combustion activities 2. Manufacturing industries and construction
Other Fuels CO2 196.02 366.03 0.00331 0.7% 89.5%
18 2C3 2. Industrial processes and product use
C. Metal industry 3. Aluminium production CO2 139.26 0.00 0.00223 0.5% 90.0%
19 4A2 4. LULUCF A. Forest land 2. Land converted to forest land CO2 -570.45 -503.37 0.00210 0.5% 90.4%
20 3A 3. Agriculture A. Enteric fermentation CH4 3584.87 3365.33 0.00188 0.4% 90.8%
21 2C3 2. Industrial processes and product use
C. Metal industry 3. Aluminium production PFC 116.46 0.00 0.00186 0.4% 91.3%
22 1A3b 1. Energy A. Fuel combustion activities 3. Transport; Road transportation Gasoline N2O 136.88 19.81 0.00184 0.4% 91.7%
23 4C2 4. LULUCF C. Grassland 2. Land converted to grassland CO2 91.50 183.10 0.00176 0.4% 92.1%
24 3Db 3. Agriculture D. Agricultural soils; Indirect emissions from managed soils
N2O 658.57 499.67 0.00174 0.4% 92.4%
25 1B2 1. Energy B. Fugitive emissions from fuels 2. Oil and natural gas and other emissions from energy production
CH4 319.77 196.87 0.00165 0.4% 92.8%
26 1A3a 1. Energy A. Fuel combustion activities 3. Transport; Domestic aviation Kerosene CO2 252.55 139.83 0.00158 0.3% 93.1%
27 1A3b 1. Energy A. Fuel combustion activities 3. Transport; Road transportation Gasoline CH4 116.04 19.86 0.00151 0.3% 93.5%
28 2G 2. Industrial processes and product use
G. Other product manufacture and use
SF6 137.01 204.26 0.00140 0.3% 93.8%
29 5B 5. Waste B. Biological treatment of solid waste
CH4 35.64 107.96 0.00133 0.3% 94.1%
30 1A4b 1. Energy A. Fuel combustion activities 4. Other sectors; Residential Biomass CH4 109.97 24.66 0.00133 0.3% 94.4%
31 1A3b 1. Energy A. Fuel combustion activities 3. Transport; Road transportation Diesel N2O 5.61 73.08 0.00120 0.3% 94.6%
32 1A1 1. Energy A. Fuel combustion activities 1. Energy industries Gaseous Fuels CO2 243.40 288.18 0.00118 0.3% 94.9%
33 3B5 3. Agriculture B. Manure management 5. Indirect N2O emissions N2O 242.32 283.54 0.00111 0.2% 95.1%
IPCC source categories and fuels if applicable
Approach 1 key category analysis - Trend Assessment
1 Introduction: 1.5 Description of key categories
4G Harvested wood products, CO2
4F2 Land converted to other land, CO2
Table 1-7 Switzerland’s Approach 2 level key categories for the year 2014 including LULUCF categories, sorted by emission contribution to the national total. Categories in grey are key under Approach 1 as well.
Table 1-8 Switzerland’s Approach 2 level key categories for the base year 1990 including LULUCF categories, sorted by emission contribution to the national total. Categories in grey are key under Approach 1 as well.
No. GHG 1 3Da 3. Agriculture D. Agricultural soils; Direct
emissions from managed soils
N2O 1111.39 106.3% 13.8% 13.8%
2 4C1 4. LULUCF C. Grassland 1. Grassland remaining grassland CO2 115.70 839.4% 11.3% 25.1%
3 3Db 3. Agriculture D. Agricultural soils; Indirect emissions from managed soils
N2O 499.67 175.5% 10.2% 35.3%
4 4A1 4. LULUCF A. Forest land 1. Forest land remaining forest land CO2 -1674.57 47.9% 9.3% 44.6%
5 3B5 3. Agriculture B. Manure management 5. Indirect N2O emissions N2O 283.54 244.5% 8.1% 52.7%
6 3A 3. Agriculture A. Enteric fermentation CH4 3365.33 18.1% 7.1% 59.8%
7 3B 3. Agriculture B. Manure management CH4 782.15 54.4% 5.0% 64.7%
8 1A1 1. Energy A. Fuel combustion activities 1. Energy industries Other Fuels
CO2 2318.49 10.5% 2.8% 67.6%
9 4A2 4. LULUCF A. Forest land 2. Land converted to forest land CO2 -503.37 47.9% 2.8% 70.4%
10 5D 5. Waste D. Wastewater treatment and discharge
N2O 144.47 150.0% 2.5% 72.9%
11 2F1 2. Industrial processes and product use
F. Product uses as substitutes for ODS
1. Refrigeration and air conditioning HFC 1398.55 15.0% 2.4% 75.4%
12 4E2 4. LULUCF E. Settlements 2. Land converted to settlements CO2 318.25 50.2% 1.9% 77.2%
13 4B1 4. LULUCF B. Cropland 1. Cropland remaining cropland CO2 332.11 37.8% 1.5% 78.7%
14 1A4b 1. Energy A. Fuel combustion activities 4. Other sectors; Residential Gaseous Fuels
CO2 2402.23 5.1% 1.4% 80.1%
15 1A2 1. Energy A. Fuel combustion activities 2. Manufacturing industries and construction
Gaseous Fuels
CO2 2278.18 5.1% 1.4% 81.5%
16 5A 5. Waste A. Solid waste disposal CH4 367.74 30.0% 1.3% 82.8%
17 5D 5. Waste D. Wastewater treatment and discharge
CH4 174.59 48.2% 1.0% 83.7%
18 4D1 4. LULUCF D. Wetlands 1. Wetlands remaining wetlands CO2 70.77 104.4% 0.9% 84.6%
19 4 III 4. LULUCF N mineralization N2O 52.01 135.1% 0.8% 85.4%
20 1A3b 1. Energy A. Fuel combustion activities 3. Transport; Road transportation Diesel CO2 7297.02 0.9% 0.8% 86.2%
21 1A4a 1. Energy A. Fuel combustion activities 4. Other sectors;
Commercial/institutional
Gaseous Fuels
CO2 1244.62 5.1% 0.7% 86.9%
22 3B1-3B4 3. Agriculture B. Manure management 1. Cattle, 2. Sheep, 3. Swine, 4. Other livestock
N2O 86.09 72.2% 0.7% 87.6%
23 4G 4. LULUCF G. Harvested wood products CO2 -105.80 57.1% 0.7% 88.3%
24 1B2 1. Energy B. Fugitive emissions from fuels 2. Oil and natural gas and other emissions from energy production
CH4 196.87 30.0% 0.7% 89.0%
25 4F2 4. LULUCF F. Other land 2. Land converted to other land CO2 117.35 50.2% 0.7% 89.7%
26 1A3b 1. Energy A. Fuel combustion activities 3. Transport; Road transportation Gasoline CO2 8276.97 0.7% 0.7% 90.4%
IPCC source categories and fuels if applicable
Key categories resulting from Approach 2 key category analysis - Level Assessment for the year 2014 (categories which are already KCs under Approach 1 are shown in grey)
No. GHG 1 3Da 3. Agriculture D. Agricultural soils; Direct emissions
from managed soils
N2O 1239.22 106.3% 15.2% 15.2%
2 3Db 3. Agriculture D. Agricultural soils; Indirect emissions from managed soils
N2O 658.57 175.5% 13.3% 28.5%
3 4G 4. LULUCF G. Harvested wood products CO2 -1231.92 57.1% 8.1% 36.6%
4 4C1 4. LULUCF C. Grassland 1. Grassland remaining grassland CO2 79.05 839.4% 7.6% 44.2%
5 3A 3. Agriculture A. Enteric fermentation CH4 3584.87 18.1% 7.5% 51.7%
6 3B5 3. Agriculture B. Manure management 5. Indirect N2O emissions N2O 242.32 244.5% 6.8% 58.6%
7 3B 3. Agriculture B. Manure management CH4 923.97 54.4% 5.8% 64.4%
8 4A2 4. LULUCF A. Forest land 2. Land converted to forest land CO2 -570.45 47.9% 3.1% 67.5%
9 5A 5. Waste A. Solid waste disposal CH4 763.39 30.0% 2.6% 70.1%
10 4E2 4. LULUCF E. Settlements 2. Land converted to settlements CO2 394.54 50.2% 2.3% 72.4%
11 5D 5. Waste D. Wastewater treatment and discharge N2O 118.27 150.0% 2.0% 74.5%
12 4A1 4. LULUCF A. Forest land 1. Forest land remaining forest land CO2 -369.23 47.9% 2.0% 76.5%
13 1A1 1. Energy A. Fuel combustion activities 1. Energy industries Other
Fuels
CO2 1491.86 10.5% 1.8% 78.3%
14 4B1 4. LULUCF B. Cropland 1. Cropland remaining cropland CO2 364.91 37.8% 1.6% 79.9%
15 1B2 1. Energy B. Fugitive emissions from fuels 2. Oil and natural gas and other emissions from energy production
CH4 319.77 30.0% 1.1% 81.0%
16 1A2 1. Energy A. Fuel combustion activities 2. Manufacturing industries and construction
Solid Fuels CO2 1274.70 7.1% 1.0% 82.1%
17 2G 2. Industrial processes and product use
G. Other product manufacture and use N2O 105.87 80.0% 1.0% 83.0%
18 4 III 4. LULUCF N mineralization N2O 58.71 135.1% 0.9% 83.9%
19 1A3b 1. Energy A. Fuel combustion activities 3. Transport; Road transportation Gasoline CO2 11334.49 0.7% 0.9% 84.9%
20 3B1-3B4 3. Agriculture B. Manure management 1. Cattle, 2. Sheep, 3. Swine, 4. Other livestock
N2O 105.65 72.2% 0.9% 85.7%
21 1A4b 1. Energy A. Fuel combustion activities 4. Other sectors; Residential Gaseous Fuels
CO2 1451.63 5.1% 0.9% 86.6%
22 2A1 2. Industrial processes and product use
A. Mineral industry 1. Cement production CO2 2524.45 2.8% 0.8% 87.4%
23 4D1 4. LULUCF D. Wetlands 1. Wetlands remaining wetlands CO2 67.56 104.4% 0.8% 88.2%
24 1A4b 1. Energy A. Fuel combustion activities 4. Other sectors; Residential Liquid Fuels
CO2 10098.96 0.7% 0.8% 89.0%
25 1A3b 1. Energy A. Fuel combustion activities 3. Transport; Road transportation Gasoline N2O 136.88 50.0% 0.8% 89.8%
26 5D 5. Waste D. Wastewater treatment and discharge CH4 130.92 48.2% 0.7% 90.5%
IPCC source categories and fuels if applicable
Key categories resulting from Approach 2 key category analysis - Level Assessment for the base year 1990 (categories which are already KCs under Approach 1 are shown in grey)
1 Introduction: 1.5 Description of key categories
Regarding the trend assessment between the base year 1990 and the most recent year 2014, 31 categories are identified as trend key categories under Approach 2 (Table 1-9).
Table 1-9 Switzerland’s Approach 2 trend key categories between 1990 and 2014 including LULUCF categories, sorted by contribution to the trend assessment. Categories in grey are key under Approach 1 as well.
No. GHG
1 4G 4. LULUCF G. Harvested wood products CO2 -1231.92 -105.80 57.1% 1.24479 20.0% 20.0%
2 4A1 4. LULUCF A. Forest land 1. Forest land remaining forest land CO2 -369.23 -1674.57 47.9% 1.07315 17.3% 37.3%
3 4C1 4. LULUCF C. Grassland 1. Grassland remaining grassland CO2 79.05 115.70 839.4% 0.64819 10.4% 47.7%
4 2F1 2. Industrial processes and product use
F. Product uses as substitutes for ODS
1. Refrigeration and air conditioning HFC 0.02 1398.55 15.0% 0.36947 5.9% 53.6%
5 3Db 3. Agriculture D. Agricultural soils; Indirect emissions from managed soils
N2O 658.57 499.67 175.5% 0.30595 4.9% 58.6%
6 3B5 3. Agriculture B. Manure management 5. Indirect N2O emissions N2O 242.32 283.54 244.5% 0.27245 4.4% 62.9%
7 1A1 1. Energy A. Fuel combustion activities 1. Energy industries Other Fuels
CO2 1491.86 2318.49 10.5% 0.17774 2.9% 65.8%
8 5A 5. Waste A. Solid waste disposal CH4 763.39 367.74 30.0% 0.17235 2.8% 68.6%
9 1A2 1. Energy A. Fuel combustion activities 2. Manufacturing industries and construction
Gaseous Fuels
CO2 1059.63 2278.18 5.1% 0.11859 1.9% 70.5%
10 4A2 4. LULUCF A. Forest land 2. Land converted to forest land CO2 -570.45 -503.37 47.9% 0.10041 1.6% 72.1%
11 1A4b 1. Energy A. Fuel combustion activities 4. Other sectors; Residential Gaseous Fuels
CO2 1451.63 2402.23 5.1% 0.09764 1.6% 73.7%
12 5D 5. Waste D. Wastewater treatment and discharge
N2O 118.27 144.47 150.0% 0.09764 1.6% 75.2%
13 1A3b 1. Energy A. Fuel combustion activities 3. Transport; Road transportation Gasoline N2O 136.88 19.81 50.0% 0.09213 1.5% 76.7%
14 1A2 1. Energy A. Fuel combustion activities 2. Manufacturing industries and construction
Solid Fuels
CO2 1274.70 521.18 7.1% 0.07991 1.3% 78.0%
15 1A3b 1. Energy A. Fuel combustion activities 3. Transport; Road transportation Diesel CO2 2632.66 7297.02 0.9% 0.07641 1.2% 79.2%
16 2G 2. Industrial processes and product use
G. Other product manufacture and use
N2O 105.87 43.93 80.0% 0.07371 1.2% 80.4%
17 1A3b 1. Energy A. Fuel combustion activities 3. Transport; Road transportation Gasoline CH4 116.04 19.86 37.0% 0.05579 0.9% 81.3%
18 3B 3. Agriculture B. Manure management CH4 923.97 782.15 54.4% 0.05533 0.9% 82.2%
19 5B 5. Waste B. Biological treatment of solid waste
CH4 35.64 107.96 41.2% 0.05487 0.9% 83.1%
20 1B2 1. Energy B. Fugitive emissions from fuels 2. Oil and natural gas and other emissions from energy production
CH4 319.77 196.87 30.0% 0.04956 0.8% 83.9%
21 4C2 4. LULUCF C. Grassland 2. Land converted to grassland CO2 91.50 183.10 27.7% 0.04868 0.8% 84.7%
22 5D 5. Waste D. Wastewater treatment and discharge
CH4 130.92 174.59 48.2% 0.04715 0.8% 85.4%
23 1A4b 1. Energy A. Fuel combustion activities 4. Other sectors; Residential Liquid Fuels
CO2 10098.96 5549.06 0.7% 0.04418 0.7% 86.1%
24 1A4b 1. Energy A. Fuel combustion activities 4. Other sectors; Residential Biomass CH4 109.97 24.66 30.0% 0.03978 0.6% 86.8%
25 4E2 4. LULUCF E. Settlements 2. Land converted to settlements CO2 394.54 318.25 50.2% 0.03574 0.6% 87.3%
26 1A2 1. Energy A. Fuel combustion activities 2. Manufacturing industries and construction
Other Fuels
CO2 196.02 366.03 10.5% 0.03469 0.6% 87.9%
27 4E1 4. LULUCF E. Settlements 1. Settlements remaining settlements CO2 17.27 54.32 50.2% 0.03417 0.5% 88.5%
28 3A 3. Agriculture A. Enteric fermentation CH4 3584.87 3365.33 18.1% 0.03406 0.5% 89.0%
29 1A4a 1. Energy A. Fuel combustion activities 4. Other sectors;
Commercial/institutional
Gaseous Fuels
CO2 981.49 1244.62 5.1% 0.03179 0.5% 89.5%
30 2G 2. Industrial processes and product use
G. Other product manufacture and use
SF6 137.01 204.26 20.5% 0.02879 0.5% 90.0%
31 3Da 3. Agriculture D. Agricultural soils; Direct emissions from managed soils
N2O 1239.22 1111.39 106.3% 0.02817 0.5% 90.4%
IPCC source categories and fuels if applicable
Approach 2 key category analysis - Trend Assessment (categories which are already KCs under Approach 1 are shown in grey)
1 Introduction: 1.5 Description of key categories
1.5.1.3 Summary of combined KCA including LULUCF categories
A summary of the key category analysis for 2014 is shown in Table 1-10, considering level and trend assessments for both, Approach 1 and Approach 2.
Table 1-10 Summary of Switzerland’s combined KCA Approach for 2014 including LULUCF categories. The abbreviations used in the last column indicate whether a certain category is identified as key because of the level assessment (L1 = level according to Approach 1, L2 = level according to Approach 2) or the trend assessment (T1 = trend according to Approach 1, T2 = trend according to Approach 2).
No. GHG Identification
criteria
1 1A1 1. Energy A. Fuel combustion activities 1. Energy industries Gaseous Fuels CO2 L1, T1
2 1A1 1. Energy A. Fuel combustion activities 1. Energy industries Liquid Fuels CO2 L1, T1
3 1A1 1. Energy A. Fuel combustion activities 1. Energy industries Other Fuels CO2 L1, L2, T1, T2
4 1A2 1. Energy A. Fuel combustion activities 2. Manufacturing industries and construction Gaseous Fuels CO2 L1, L2, T1, T2 5 1A2 1. Energy A. Fuel combustion activities 2. Manufacturing industries and construction Liquid Fuels CO2 L1, T1 6 1A2 1. Energy A. Fuel combustion activities 2. Manufacturing industries and construction Other Fuels CO2 L1, T1, T2 7 1A2 1. Energy A. Fuel combustion activities 2. Manufacturing industries and construction Solid Fuels CO2 L1, T1, T2
8 1A3a 1. Energy A. Fuel combustion activities 3. Transport; Domestic aviation Kerosene CO2 T1
9 1A3b 1. Energy A. Fuel combustion activities 3. Transport; Road transportation Gasoline CH4 T1, T2
10 1A3b 1. Energy A. Fuel combustion activities 3. Transport; Road transportation Diesel CO2 L1, L2, T1, T2 11 1A3b 1. Energy A. Fuel combustion activities 3. Transport; Road transportation Gasoline CO2 L1, L2, T1
12 1A3b 1. Energy A. Fuel combustion activities 3. Transport; Road transportation Diesel N2O T1
13 1A3b 1. Energy A. Fuel combustion activities 3. Transport; Road transportation Gasoline N2O T1, T2 14 1A4a 1. Energy A. Fuel combustion activities 4. Other sectors; Commercial/institutional Gaseous Fuels CO2 L1, L2, T1, T2 15 1A4a 1. Energy A. Fuel combustion activities 4. Other sectors; Commercial/institutional Liquid Fuels CO2 L1, T1
16 1A4b 1. Energy A. Fuel combustion activities 4. Other sectors; Residential Biomass CH4 T1, T2
17 1A4b 1. Energy A. Fuel combustion activities 4. Other sectors; Residential Gaseous Fuels CO2 L1, L2, T1, T2 18 1A4b 1. Energy A. Fuel combustion activities 4. Other sectors; Residential Liquid Fuels CO2 L1, T1, T2 19 1A4c 1. Energy A. Fuel combustion activities 4. Other sectors; Agriculture/forestry/fishing Liquid Fuels CO2 L1 20 1B2 1. Energy B. Fugitive emissions from fuels 2. Oil and natural gas and other emissions from
energy production
CH4 L1, L2, T1, T2 21 2A1 2. Industrial processes
and product use
A. Mineral industry 1. Cement production CO2 L1, T1
22 2C3 2. Industrial processes and product use
C. Metal industry 3. Aluminium production CO2 T1
23 2C3 2. Industrial processes and product use
C. Metal industry 3. Aluminium production PFC T1
24 2F1 2. Industrial processes and product use
F. Product uses as substitutes for ODS 1. Refrigeration and air conditioning HFC L1, L2, T1, T2
25 2G 2. Industrial processes and product use
G. Other product manufacture and use SF6 L1, T1, T2
26 2G 2. Industrial processes and product use
G. Other product manufacture and use N2O T2
27 3A 3. Agriculture A. Enteric fermentation CH4 L1, L2, T1, T2
28 3B 3. Agriculture B. Manure management CH4 L1, L2, T2
29 3B1-3B4
3. Agriculture B. Manure management 1. Cattle, 2. Sheep, 3. Swine, 4. Other livestock N2O L2
30 3B5 3. Agriculture B. Manure management 5. Indirect N2O emissions N2O L1, L2, T1, T2
31 3Da 3. Agriculture D. Agricultural soils; Direct emissions from managed soils
N2O L1, L2, T2 32 3Db 3. Agriculture D. Agricultural soils; Indirect emissions
from managed soils
N2O L1, L2, T1, T2
33 4 III 4. LULUCF N mineralization N2O L2
34 4A1 4. LULUCF A. Forest land 1. Forest land remaining forest land CO2 L1, L2, T1, T2
35 4A2 4. LULUCF A. Forest land 2. Land converted to forest land CO2 L1, L2, T1, T2
36 4B1 4. LULUCF B. Cropland 1. Cropland remaining cropland CO2 L1, L2
37 4C1 4. LULUCF C. Grassland 1. Grassland remaining grassland CO2 L2, T2
38 4C2 4. LULUCF C. Grassland 2. Land converted to grassland CO2 L1, T1, T2
39 4D1 4. LULUCF D. Wetlands 1. Wetlands remaining wetlands CO2 L2
40 4E1 4. LULUCF E. Settlements 1. Settlements remaining settlements CO2 T2
41 4E2 4. LULUCF E. Settlements 2. Land converted to settlements CO2 L1, L2, T2
42 4F2 4. LULUCF F. Other land 2. Land converted to other land CO2 L2
43 4G 4. LULUCF G. Harvested wood products CO2 L2, T1, T2
44 5A 5. Waste A. Solid waste disposal CH4 L1, L2, T1, T2
45 5B 5. Waste B. Biological treatment of solid waste CH4 T1, T2
46 5D 5. Waste D. Wastewater treatment and discharge CH4 L1, L2, T2
47 5D 5. Waste D. Wastewater treatment and discharge N2O L2, T2
IPCC source categories and fuels if applicable
Summary of key category analysis for Switzerland
Quantitative method used: Approach 1 and Approach 2, Level and Trend, 2014
1 Introduction: 1.6 General uncertainty evaluation
1.5.2 KP-LULUCF inventory
Switzerland identified four key categories for activities under Article 3, paragraphs 3 and 4, of the Kyoto Protocol (Forest management, Afforestation and Reforestation, Deforestation, Harvested Wood Products). The approach relies on full inventory KCA (with LULUCF), KP-CRF association and qualitative assessment. A detailed description is presented in chp.
11.6.1.