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Exhaust Emissions: Aviation

Volume 506: debated on Monday 22 February 2010

To ask the Secretary of State for Energy and Climate Change what estimate he has made of the volume of carbon dioxide emissions arising from the aviation industry in the UK in each of the last five years. (317630)

On 2 February 2010 DECC published final 2008 estimates of UK greenhouse gas emissions as National Statistics. 2008 is the latest year for which data are available.

Two separate sectoral breakdowns are published each year: by source and by end-user. The former breakdown is based on the sector where the emissions actually occurred; the latter breakdown reallocates these same emissions in accordance with where the end-use actually occurred. This effectively reallocates emissions from energy supply to, for example, household and business energy usage.

For aviation, emissions by source and end-users are very close to one another.

By source, carbon dioxide emissions from domestic aviation over the period 2004-08 are shown in the following table. They are based on National Communications sectors, which are the basis for UK Government reporting. The 2008 end-user breakdown will be published on 25 March 2010.

Carbon dioxide emissions from domestic aviation: by source breakdown, 2004-08

Million tonnes of CO2

NC category

2004

2005

2006

2007

2008

Aviation

2.3

2.5

2.4

2.3

2.2

Emissions from international aviation can be estimated from refuelling from bunkers at UK airports, whether by UK or non-UK operators. Under the reporting guidelines agreed by the UNFCCC, these emissions are not included in the UK’s emissions total, but are reported as memo items in national greenhouse gas inventories. Parties to the UNFCCC are required to act to limit or reduce emissions from international services working through the International Civil Aviation Organisation (ICAO) and International Maritime Organisation (IMO).

The following table provides CO2 emissions estimates for UK international aviation over the period 2004-08.

Carbon dioxide emissions from UK-based international aviation, by source: 2004-08

Million tonnes of CO2

Memo item

2004

2005

2006

2007

2008

International aviation bunkers

32.4

35.1

35.6

35.4

34.1

All the latest headlines results and data tables can be found on the DECC website at:

http://decc.gov.uk/en/content/cms/statistics/climate_change/gg_emissions/uk_emissions/2008_final/2008_final.aspx