TITLE:
The Influence of Heat Source IR Radiation on Black-Body Heating/Cooling with Increased CO2 Concentration
AUTHORS:
Thorstein O. Seim, Borgar T. Olsen
KEYWORDS:
Greenhouse Effect, CO2 Backscatter, IR Radiation
JOURNAL NAME:
Atmospheric and Climate Sciences,
Vol.13 No.2,
April
27,
2023
ABSTRACT: This study deal with interactions between thermal and
radiative energy flow in experimental situations of varying complexity. Of special
interest is how IR energy, re-emitted from CO2 gas, behaves in an earth/atmosphere
simulated setup. Such an experiment was performed by Hermann Harde and Michael Schnell
where they show that IR radiation emitted from CO2 can warm a small black-body
metal plate. In a control experiment, we verified this result. However, in their
experiment, the amount of IR radiation from the heating element was strongly attenuated.
In a modified experiment, where IR emission from the heating source is present,
no heating but a slight cooling of a black object is found when air is replaced
by CO2. The modified experimental situation is also more like the earth/atmosphere
situation. The presence of IR radiation from a heated surface (like when the sun
heats the earth’s surface) strongly attenuates the heating ability of increasing backscatter
from increased amount of CO2 in the atmosphere. This result has consequences
for the climate change models used by IPCC.