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

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