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Changes in the 13C/12C Ratio of Atmospheric CO2 1977-2014

9 Pages Posted: 18 May 2016 Last revised: 7 Jul 2016

Jamal Munshi

Sonoma State University

Date Written: May 18, 2016

Abstract

Data for the 13C fraction in atmospheric CO2 from six different measurement stations in the sample period 1977-2014 are studied to estimate its dilution by fossil fuel emissions. No correlation between the annual rate of fossil fuel emissions and annual change in the 13C fraction of atmospheric CO2 is found. We conclude that the 13C data for atmospheric CO2 do not serve as empirical evidence that changes in atmospheric CO2 since the Industrial Revolution can be attributed to fossil fuel emissions.

Keywords: atmospheric CO2, fossil fuel emissions, carbon isotopes, 13C, AGW, global warming, climate change

Suggested Citation

Munshi, Jamal, Changes in the 13C/12C Ratio of Atmospheric CO2 1977-2014 (May 18, 2016). Available at SSRN: https://ssrn.com/abstract=2781465 or http://dx.doi.org/10.2139/ssrn.2781465

Jamal Munshi (Contact Author)

Sonoma State University ( email )

1801 East Cotati Avenue
Rohnert Park, CA 94928
United States

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