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Carbon Emissions

Volume 480: debated on Friday 17 October 2008

To ask the Secretary of State for Transport how many tonnes of (a) carbon dioxide, (b) other greenhouse gases and (c) harmful particulates were emitted from (i) road and (ii) other transport in each of the last eight years. (227097)

The National Atmospheric Emissions Inventory (NAEI) compiles estimates of emissions to the atmosphere from UK sources. The most recent NAEI data published by DEFRA can be found at:

http://www.defra.gov.uk/environment/statistics/globatmos/download/xls/gatb04.xls.

The following table contains the estimates of carbon dioxide (CO2) emissions from road transport and other transport for each year from 1999 to 2006 which is the latest year for which official figures have been published.

Carbon dioxide

Million tonnes CO2

1999

2000

2001

2002

2003

2004

2005

2006

Road transport

116.8

116.0

116.0

118.4

118.2

119.4

119.9

120.3

Other transport1

7.2

7.2

6.9

6.5

8.2

8.4

9.2

10.5

1 Other transport includes domestic aviation, railways, domestic shipping, and other mobile sources and machinery.

The Kyoto agreement defines a set of six greenhouse gases (GHG's) which are: carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulphur hexafluoride.

The following tables contain estimates of methane and nitrous oxide from road transport and other transport for each year from 1999 to 2006 which is the latest year for which official figures have been published. Emissions from transport of hydrofluorocarbons, perfluorocarbons and sulphur hexafluoride are negligible.

Methane

Thousand tonnes

1999

2000

2001

2002

2003

2004

2005

2006

Road transport

16.3

14.5

12.7

11.3

9.9

8.8

7.9

7.2

Other transport1

0.3

0.4

0.4

0.3

0.3

0.4

0.4

0.4

1 Other transport includes domestic aviation, railways, domestic shipping, and other mobile sources and machinery.

Nitrous oxide

Thousand tonnes

1999

2000

2001

2002

2003

2004

2005

2006

Road transport

12.1

13.1

14.1

15.0

15.6

16.2

16.4

16.7

Other transport1

1.0

1.0

1.0

1.0

1.1

1.1

1.2

1.2

1 Other transport includes domestic aviation, railways, domestic shipping, and other mobile sources and machinery.

In addition to the above, the National Atmospheric Emissions Inventory (NAEI) publishes estimates of emissions of harmful particulates to the atmosphere from UK sources. The most recent NAEI data published by DEFRA can be found at:

http://www.defra.gov.uk/environment/statistics/airqual/download/xls/aqtb11.xls.

The following table contains estimates of harmful particulate (PM10) emissions from road transport and other transport for each year from 1999 to 2006 which is the latest year for which official figures have been published.

PM10 emissions

Thousand tonnes

1999

2000

2001

2002

2003

2004

2005

2006

Road transport

43.3

38.6

37.7

36.9

36.2

35.4

33.7

32.3

Other transport1

5.4

5.1

4.5

3.9

5.6

6.4

7.4

9.6

1 Other transport includes domestic aviation, railways, domestic shipping, and other mobile sources and machinery.