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Carbon Emissions

Volume 479: debated on Monday 29 September 2008

To ask the Secretary of State for Environment, Food and Rural Affairs what estimate he has made of the percentage of the contribution to global carbon dioxide emissions from (a) power generation, (b) deforestation, (c) aviation, (d) shipping, (e) motor vehicles and (f) all sources in the UK. (224071)

[holding answer 17 September 2008]: The Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) gives a best estimate of around 6 billion tonnes for the annual global carbon dioxide emissions caused by land-use change (which is dominated by deforestation).

Using data from the IEA and the IPCC (including an estimate of the emissions from industrial processes such as cement manufacture), the percentage contributions of the different sectors in 2005 to the global total were as follows:

Percentage contribution to global total

(a) Power generation


(b) Land-use change (chiefly deforestation)


(c) Aviation


(d) Shipping


(e) Road vehicles


(f) All sources in the UK