Carbon Dioxide Emissions

Transport written question – answered on 3rd November 2005.

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Photo of John Hemming John Hemming Liberal Democrat, Birmingham, Yardley

To ask the Secretary of State for Transport what estimate he has made of the total quantity of carbon dioxide released by (a) overground and (b) underground trains in (i) 1984, (ii) 1994 and (ii) 2004.

Photo of Derek Twigg Derek Twigg Parliamentary Under-Secretary (Department for Transport)

The table provides estimates of all carbon dioxide emissions from the rail sector for 1984, 1994 and 2003. Figures for 2004 are not yet available. It is not possible to disaggregate these data to provide separate estimates of overground and underground train emissions.

The estimates include direct carbon dioxide emissions from diesel trains and indirect emissions from all other sources and operations connected with the rail sector. Indirect emissions include emissions from the production of electricity allocated to the heavy and light rail sectors including London Underground and non-traction use of electricity for rail lighting, signalling, stations and offices.

Total direct and indirect CO 2 emissions from rail activity (million tonnes of CO 2 )
1984 5.2
1994 6.5
2003 5.3



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