A physical demonstration of the increase in global surface energy due to increasing P[CO2]

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Authors

Hugo F Franzen, Stefan Franzen 

Abstract

Although study of the effect of energy-absorbing gases in our atmosphere has a two-hundred year history and an unequivocal explanation based on scientific observation and theory, a significant fraction of the public and even a few scientists doubt the correlation between the increasing the partial pressure of atmospheric carbon dioxide (P[CO2]) and the observed increase in terrestrial temperature over the past 120 years. Although the basic science showing that CO2 would absorb the infrared radiation emitted by the earth produce a surface-warming effect was first calculated by Arrhenius in 1896, the issue was neglected by the scientific community for decades. Today there are ample climate models of the climactic effects arising from the forcing term of increasing P[CO2]. In this paper we follow Arrhenius’ concept, although we use the HITRAN database as the input to prove the connection between earth’s surface temperature and atmospheric absorption of terrestrial radiation in a direct manner that the reader can also implement. The spectra of CO2 are enormously complicated, broadened by Fermi Resonance, and intense because of the quantum coupling of the rotation of CO2 to its bending. Using an on-line database for the transitions of CO2 the reader will easily be able to show that CO2 reduces the transmittance of the Earth’s thermal radiation through the atmosphere, which in turn results in heating of the surface. The model does not make any predictions other than that the global temperature will increase as a function of P[CO2]. The result is at the intersection of Physics, Atmospheric Science, and Psychology since the demonstration is a powerful tool that will give scientists the impetus to reach out to the public with lucid explanations based on physical principles.

DOI

https://doi.org/10.31223/X5WX15

Subjects

Oceanography and Atmospheric Sciences and Meteorology

Keywords

carbon dioxide, spectroscopy, Stefan-Boltzmann law, radiation equilibrium, terrestrial temperature

Dates

Published: 2024-02-01 11:46

Last Updated: 2024-02-01 16:46

License

CC BY Attribution 4.0 International

Additional Metadata

Data Availability (Reason not available):
The data are available in Supporting Information and website that includes all spreadsheets or code used.

Conflict of interest statement:
The authors have no competing interests.