Annual Fossil-Fuel CO₂ Emissions: Global Stable Carbon Isotopic Signature

DOI: 10.3334/CDIAC/ffe.db1013.2011

Data    Documentation   

Contributors

R.J. Andres, T.A. Boden, and G. Marland

The 2011 revision of this database contains estimates of the annual, global mean value of del ¹³C of CO₂ emissions from fossil-fuel consumption and cement manufacture for 1751-2008. These estimates of the carbon isotopic signature account for the changing mix of coal, petroleum, and natural gas being consumed and for the changing mix of petroleum from various producing areas with characteristic isotopic signatures. This time series of global fossil-fuel del ¹³C signature provides an additional constraint for balancing the sources and sinks of the global carbon cycle and complements the atmospheric del ¹³C measurements that are used to partition the uptake of fossil carbon emissions among the ocean, atmosphere, and terrestrial biosphere reservoirs.