World Atmospheric CO2, Its 14C Specific Activity, Non-fossil Component, Anthropogenic Fossil Component, and Emissions (1750–2018) Paper by Kenneth Skrable, George Chabot, and Clayton French Health Physics. 122(2):291-305, February 2022. https://journals.lww.com/health-physics/Fulltext/2022/02000/World_Atmospheric_CO2,_Its_14 C_Specific_Activity,.2.aspx Abstract - After 1750 and the onset of the industrial revolution, the anthropogenic fossil component and the non-fossil component in the total atmospheric CO2 concentration, C(t), began to increase. Despite the lack of knowledge of these two components, claims that all or most of the increase in C(t) since 1800 has been due to the anthropogenic fossil component have continued since they began in 1960 with “Keeling Curve: Increase in CO2 from burning fossil fuel.” Data and plots of annual anthropogenic fossil CO2 emissions and concentrations, C(t), published by the Energy Information Administration, are expanded in this paper. Additions include annual mean values in 1750 through 2018 of the 14C specific activity, concentrations of the two components, and their changes from values in 1750. The specific activity of 14C in the atmosphere gets reduced by a dilution effect when fossil CO2, which is devoid of 14C, enters the atmosphere. We have used the results of this effect to quantify the two components. All results covering the period from 1750 through 2018 are listed in a table and plotted in figures. These results negate claims that the increase in C(t) since 1800 has been dominated by the increase of the anthropogenic fossil component. We determined that in 2018, atmospheric anthropogenic fossil CO2 represented 23% of the total emissions since 1750 with the remaining 77% in the exchange reservoirs. Our results show that the percentage of the total CO2 due to the use of fossil fuels from 1750 to 2018 increased from 0% in 1750 to 12% in 2018, much too low to be the cause of global warming.
Derivation of equations and example calculations of the components of CO2 https://www.allaboutenergy.net/environment-man-made-all-points-northamerica/212-environment/man-made-global-warming-organizationsdiscussing-all-positions/north-america/2986-world-atmospheric-co2-non-fossiland-anthropogenic-components-1750-to-2018-derivation-of-equations This free, six page supporting document of the paper provides the methodology used in the paper, example calculations, significant results, and a summary and conclusions. It provides both 1
a clarification of the assumptions and methodology used in the paper as well as incentive for the reader to look further into the controversies surrounding the subject of climate change and global warming and whether or not they have a significant anthropogenic cause. Background of authors and rationale for paper and supporting document The three authors of the paper and its supporting document have doctorate degrees in various sciences and they held professorships in radiological sciences and protection at the University of Massachusetts Lowell. Although they do not have specific training in geology, climatology, and atmospheric sciences, they have practical training, research experience, and academic training in mathematics, physics, chemistry, biology, statistics, and the environmental sciences, which enabled them to make the estimations outlined in the title of both documents. The authors recognize the importance of and the considerable controversies surrounding the topic of global warming and climate change. Their methodology and results will be helpful in addressing some considerations for both the skeptics and protagonists of anthropogenic global warming and climate change. Their simple methodology and equations can be used to distinguish the relative importance of anthropogenic-fossil and non-fossil contributions to atmospheric CO2. The following links for each author are: Kenneth W. Skrable: email: skrablekw@aol.com; https://scholar.google.com/scholar?start=50&q=Skrable,+Kenneth&hl=en&as_sdt=0,10 George E. Chabot: email: George_Chabot@uml.edu; https://docs.google.com/document/d/10WeEFyxDl68sZkHFTneUj-UhjUU4Ya3a/edit Clayton F. French: email: Clayton_French@uml.edu; https://scholar.google.com/citations?hl=en&scioq=French,+Clayton&pli=1&user=eAAr OVIAAAAJ
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