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Islamic Republic of Iran Fossil-Fuel CO2 Emissions

Graph graphic Graphics   Data graphic Data

Trends

The Islamic Republic of Iran has shown remarkable growth in total fossil-fuel CO2 emissions since 1954, averaging 6.3% per year. In 2008 total emissions reached an all-time high of 147 million metric tons of carbon. With Iran being the world's fourth largest oil-producing country it is not surprising crude oil and petroleum products account for the largest fraction of the Iranian emissions, 46.4% in 2008. The CO2 emissions time series for the Islamic Republic of Iran, like other countries in the Middle East, shows sizeable emissions from gas flaring in the late 1960s and 1970s and a decline in these emissions during the 1980s and 1990s. This downturn reflects changes in oil field practices, improvements in oil field facilities, and increasing use of gas fuels. Emissions from gas fuels have grown 390-fold since the first reported natural gas use in 1955 and now account for 42.3% of Iran's total fossil-fuel CO2 emissions. From a per capita standpoint, Islamic Republic of Iran is above the global average at 2.00 metric tons of carbon.

Energy statistics for the Islamic Republic of Iran in the early 1950s and the corresponding CO2 emissions estimates should be used with caution. Domestic fuel consumption is calculated as the difference between production plus imports and exports plus changes in stocks. When both production and exports are very large and very similar, a small error in either estimate can make it appear that domestic consumption was negative.


CITE AS: Boden, T.A., G. Marland, and R.J. Andres. 2011. Global, Regional, and National Fossil-Fuel CO2 Emissions. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tenn., U.S.A. doi 10.3334/CDIAC/00001_V2011