Table A1-3: Results of the key category trend analysis for 99 percent of the total emissions and removals in 2004

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Tier 1 Category Trend Assessment - including LULUCF
IPCC Categories	Gas	Base year estimate Gg	2004 estimate Gg	trend assessment	Contribution to trend	Cumulative total
Mobile combustion - Road vehicles	CO₂	7534.65	12416.93	0.036	18.5	18.5
Emissions from enteric fermentation in domestic livestock	CH₄	21553.97	23714.98	0.027	13.7	32.1
Emissions from Stationary combustion - gas	CO₂	7679.40	7031.32	0.025	12.9	45.0
Emissions from Stationary combustion - solid	CO₂	3227.01	5808.96	0.021	10.7	55.7
Direct emissions from Agricultural soils	N₂O	476.05	1806.29	0.014	6.9	62.6
Emissions from solid waste disposal sites	CH₄	2179.23	1509.12	0.013	6.4	69.0
Forest land remaining forest land	CO₂	20624.90	26254.43	0.014	7.0	76.0
Emissions from agricultural soils - animal production	N₂O	6767.81	7248.77	0.011	5.4	81.4
Emissions from substitutes for Ozone depleting substances	HFCs	0.00	597.36	0.007	3.4	84.8
PFC's from Aluminium production	PFC	515.60	80.70	0.006	3.1	87.8
Emissions from Stationary combustion - liquid	CO₂	2546.55	2755.47	0.004	1.9	89.7
Conversion to forest land	CO₂	870.01	747.94	0.003	1.7	91.4
Fugitive emissions from Oil and Gas operations	CO₂	263.75	602.86	0.003	1.6	93.0
Mobile combustion - Aviation	CO₂	772.83	1192.23	0.003	1.4	94.5
Fugitive emissions from Geothermal operations	CO₂	357.34	279.67	0.002	0.9	95.3
Mobile combustion - Road vehicles	CH₄	148.20	51.94	0.001	0.7	96.0
Emissions from the iron and steel industry	CO₂	1329.40	1731.51	0.001	0.7	96.7
Mobile combustion - Rail	CO₂	77.50	169.05	0.001	0.4	97.1
Mobile combustion - Road vehicles	N₂O	64.41	133.42	0.001	0.3	97.5
Emissions from ammonia/urea production	CO₂	272.92	378.27	0.001	0.3	97.7
Emissions from cement production	CO₂	366.66	484.77	0.000	0.2	97.9
Emissions from Manure Management	CH₄	583.30	745.88	0.000	0.2	98.2
Non-CO2 emissions from Stationary combustion	CH₄	60.35	41.55	0.000	0.2	98.3
Mobile combustion - Marine	CO₂	247.82	332.11	0.000	0.2	98.5
Grassland remaining grassland	CH₄	57.36	43.66	0.000	0.1	98.7
Emissions from wastewater handling	CH₄	156.66	166.95	0.000	0.1	98.8
Emissions from lime production	CO₂	81.62	122.08	0.000	0.1	98.9
Non-CO2 emissions from Stationary combustion	N₂O	76.75	115.66	0.000	0.1	99.0

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