Pollutant Information: Carbon Dioxide as Carbon 

About Carbon Dioxide as Carbon

Category: Greenhouse gases

Carbon dioxide contributes to climate change due to its positive radiative forcing effect and it is the most significant greenhouse gas emitted in the UK. Total emissions are dominated by those from power stations, refineries and other users of fossil fuels (including transport, domestic and industrial sectors). Fuel combustion contributed more than 97% of carbon dioxide emissions in 2014. Total annual UK emissions have reduced by 29% between 1990 and 2014, largely as a result of a gradual switch away from more carbon-intensive fuels such as coal and fuel oil, to fuels such as natural gas. Improvements in the efficiency of fuel use, and the use of renewable energy sources have also contributed. Between 1990 and 2014, emissions from most major energy-using sectors fell. Particularly significant emission reductions were observed between 2008 and 2009 for energy producers and for industry, reflecting a decrease in demand for fuel and electricity, probably caused by the economic downturn. Emissions increased the following year. As well as reflecting longer term trends in fuel use, variations in the emissions from year to year will reflect shorter-term changes in the fuel mix used for power generation due to changes in the prices of different fuels and changes in the total demand for electricity. There can also be changes to the demand for heat depending on average temperatures.

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Time series graph

Notable events

Start year End year Sector Information Impact
1990 2011 Energy - Energy Industries Deregulation in the use of gas for electricity production. Increased use of Combined Cycle Gas Turbine (CCGT) stations and other gas fired plant rather than coal for electricity generation. Decrease in emissions
1986 2011 Energy - Industry and Other Combustion Decline in the use of solid fuels (use of coal for domestic combustion has been restricted in the UK by the Clean Air Acts) in favour of gas with lower carbon content. Decrease in emissions
2009 2012 Public Electricity and Heat Production The economic downturn has caused significant reductions in energy demands and many industries have made cut backs or closures, resulting in reduced emissions. Decrease in emissions