Table A1.2 (Table 7.A2 of Good Practice)

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Tier 1 Source Category Trend Assessment
IPCC Source Categories	Gas	Base year estimate	2002 estimate	trend	Contribution to trend	Cumulative total
Mobile combustion - Road vehicles	CO₂	7533.73	12292.63	0.0343	24.50	24.50
Emissions from enteric fermentation in domestic livestock	CH₄	21371.91	23584.68	0.0264	18.88	43.38
Direct emissions from Agricultural soils	N₂O	680.04	2104.46	0.0140	10.00	53.39
Emissions from solid waste disposal sites	CH₄	2606.10	2066.40	0.0121	8.64	62.03
CO₂ emissions from Stationary combustion - gas	CO₂	7842.06	10420.49	0.0097	6.90	68.93
Emissions from animal production	N₂O	6574.17	7255.24	0.0081	5.81	74.74
CO₂emissions from Stationary combustion - liquid	CO₂	2546.44	2491.18	0.0066	4.75	79.48
PFCs from Aluminium production	PFC	515.60	80.70	0.0060	4.28	83.76
CO₂ emissions from Stationary combustion - solid	CO₂	3229.71	3394.88	0.0059	4.18	87.94
Emissions from substitutes for Ozone depleting substances	HFCs	0.00	387.59	0.0042	3.04	90.98
Mobile combustion - Aviation	CO₂	772.83	1089.25	0.0016	1.17	92.15
Emissions from Manure Management	CH₄	573.09	548.00	0.0016	1.17	93.31
Fugitive emissions from Geothermal operations	CO₂	357.34	315.24	0.0013	0.94	94.25
Fugitive emissions from coal mining and handling	CH₄	210.02	354.08	0.0011	0.77	95.02
Emissions from cement production	CO₂	366.66	541.72	0.0010	0.75	95.77
Mobile combustion - Marine	CO₂	233.13	360.21	0.0008	0.60	96.37
Emissions from the iron and steel industry	CO₂	1345.16	1563.80	0.0008	0.57	96.94
Mobile combustion - Rail	CO₂	77.50	157.10	0.0007	0.49	97.43
Indirect N2O emissions from Nitrogen used in Agriculture	N₂O	2634.95	3258.01	0.0006	0.41	97.84
Mobile combustion - Road vehicles	N₂O	63.69	130.29	0.0006	0.41	98.26
Fugitive emissions from Oil and Gas operations	CH₄	262.63	351.86	0.0004	0.25	98.51
Non-CO₂ emissions from Stationary combustion	CH₄	75.20	66.47	0.0003	0.20	98.71
Emissions from wastewater handling	CH₄	156.66	169.68	0.0002	0.16	98.87
Emissions from wastewater handling	N₂O	145.70	158.10	0.0002	0.15	99.02
Fugitive emissions from Oil and Gas operations	CO₂	257.85	294.80	0.0002	0.15	99.17
Mobile combustion - Road vehicles	CH₄	148.18	161.69	0.0002	0.15	99.31
Emissions from Manure Management	N₂O	48.36	75.33	0.0002	0.13	99.44
Emissions from Aluminium production	CO₂	457.92	540.34	0.0002	0.13	99.57
Emissions from Hydrogen production	CO₂	152.29	197.48	0.0001	0.10	99.67
Fugitive emissions from Geothermal operations	CH₄	52.48	51.48	0.0001	0.10	99.77
Emissions from lime production	CO₂	81.62	110.69	0.0001	0.09	99.85
Non-CO₂ emissions from Stationary combustion	N₂O	72.59	98.53	0.0001	0.08	99.93
Emissions from savanna burning	CH₄	2.81	0.84	0.0000	0.02	99.96
Mobile combustion - Aviation	N₂O	6.77	9.53	0.0000	0.01	99.97
SF₆ emissions from electrical equipment	SF₆	9.46	12.57	0.0000	0.01	99.97
Mobile combustion - Rail	N₂O	1.29	2.62	0.0000	0.01	99.98
Emissions from savanna burning	N₂O	0.53	0.16	0.0000	0.00	99.99
Emissions from agricultural residue burning	N₂O	6.51	7.44	0.0000	0.00	99.99
Mobile combustion - Marine	N₂O	2.13	2.94	0.0000	0.00	99.99
CH4 emissions from agricultural residue burning	CH₄	18.77	22.49	0.0000	0.00	99.99
Mobile combustion - Rail	CH₄	0.31	0.62	0.0000	0.00	100.00
SF₆ from other sources of SF₆	SF₆	0.48	0.33	0.0000	0.00	100.00
Mobile combustion - Aviation	CH₄	0.46	0.65	0.0000	0.00	100.00
Mobile combustion - Marine	CH₄	0.51	0.70	0.0000	0.00	100.00
Emissions from waste incineration	CO₂	0.00	0.00	0.0000	0.00	100.00
Emissions from waste incineration	N₂O	0.00	0.00	0.0000	0.00	100.00

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