Leading Heat Transfer Physicists/Geologists Assert The Impact Of CO2 Emissions On Climate Is 'Negligible'

Textbook Details Robust Planetary Theory Explaining Climate Change Without CO2

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The increasingly corroborated atmospheric mass pressure (gravity) explanation for variances in planetary temperatures – which precludes a significant role for CO2 concentration changes – has now advanced from peer-reviewed scientific journals to university-level textbooks.

The “adiabatic theory” of the greenhouse effect (adiabatic: “the constant decline in temperature of an air parcel as it rises in the atmosphere due to pressure drop and gas expansion”) is capable of explaining the variances in temperatures on planets like Earth, Mars, and Venus using each planet’s atmospheric pressure gradient – and without reliance on the traditional greenhouse effect theory that assigns a governing role to CO2.
As a simplified example, Mars has an atmosphere made up of about 950,000 ppm (95%) CO2 compared to the Earth’s 400 ppm (0.04%), and yet Mars’ average surface temperature is about -75°C colder than Earth’s.  Venus also has an atmosphere with about 950,000 ppm (95%) CO2, but its surface is +447°C warmer than Earth’s.
In addition to each planet’s variable distance from the Sun, the difference in temperature for Mars, Venus, and Earth can be calculated by considering its atmospheric mass (pressure) gradient.  Mars’ atmosphere is 100 times thinner than Earth’s.
Venus’ atmosphere is 92 times heavier (pressurized) than Earth’s.  The CO2 concentration of each planet may, therefore, be insignificant in determining surface temperature relative to factors (a) distance from the Sun and (b) atmospheric density.
The determinative role of atmospheric pressure in planetary temperatures has previously been asserted by Dr. Oleg Sorokhtin (Russian Academy of Sciences) and other scientists introducing the “adiabatic theory of greenhouse effect”.
Sorokhtin et al., 2007
According to the adiabatic theory of greenhouse effect (see below), besides the Sun’s radiation, the main determining factors of the Earth’s climate are the Earth’s atmospheric pressure and its composition. The denser the atmosphere (i.e., the higher the atmospheric pressure), the warmer the climate. Thus, the high surface temperature at the ocean level during the Archaean time, at a low Sun’s luminosity, may only be a result of higher atmospheric pressure. The gradual decrease in the oceanic water temperature with a smooth increase of Sun’s luminosity may only be a result of a gradual decrease in the atmospheric pressure.”
Florides and Christodoulides (2009) followed up with a peer-reviewed scientific paper of their own that also affirmed the “adiabatic theory of the greenhouse effect” and its cogency in explaining planetary temperatures, as well as the “negligible” effect of CO2 concentration changes.
“The analysis indicates that the average surface temperature of the Earth is determined by the solar constant, the precession angle of the planet, the mass (pressure) of the atmosphere, and the specific heat of the atmospheric mixture of gases.”
“A very recent development on the greenhouse phenomenon is a validated adiabatic model, based on laws of physics, forecasting a maximum temperature-increase of 0.01–0.03 °C for a value doubling the present concentration of atmospheric CO2. … If the CO2 concentration in the atmosphere increases from 0.035% [350 ppm] to its double value of 0.070% [700 ppm], the atmospheric pressure will increase slightly (by 0.00015 atm). Consequently the temperature at sea level will increase by about 0.01 °C and the increase in temperature at an altitude of 10 km will be less than 0.03 °C. These amounts are negligible compared to the natural temporal fluctuations of the global temperature.”

Adiabatic Theory: Textbook Science

Drs. John Robertson and George Chilingar, professors of geology and environmental (petroleum) engineering, have authored 12 textbooks, 70 books, and 575 scientific papers between them.  Both are verifiable experts in heat transfer physics.