German theoretical physicists Gerhard Gerlich and Ralf D. Tscheuschner, authors of the 2009 paper "Falsification Of The Atmospheric CO2 Greenhouse Effects within the Frame of Physics," have responded to critics with 2 recent papers which reaffirm their conclusion that "we cannot expect that a change in concentration of any trace gas will have any measurable effect" upon climate (i.e. CO2 and all other trace IR active "greenhouse" gases). The first titled "On the Barometric Formulas and their Derivation from Hydrodynamics and Thermodynamics" derives the barometric formulas of atmospheric pressure, density, and temperature and then discusses the implications which reaffirm the conclusions of their 2009 paper and relevance to the anthropogenic global warming debate. They find conventional "greenhouse theory" has also not appropriately accounted for barometric effects, and find other misconceptions and over-simplifications. From the conclusion:
published this response to critics (unfortunately behind paywall):
REPLY TO "COMMENT ON 'FALSIFICATION OF THE ATMOSPHERIC CO2 GREENHOUSE EFFECTS WITHIN THE FRAME OF PHYSICS' BY JOSHUA B. HALPERN et al
Author(s): GERHARD GERLICH
Institut für Mathematische Physik, Technische Universität Carolo-Wilhelmina, Mendelssohnstraße 3, D-38106 Braunschweig, Federal Republic of, Germany
RALF D. TSCHEUSCHNER
Dr. Ralf D. Tscheuschner, Dipl.-Phys.
Postfach 602762, D-22377 Hamburg, Federal Republic of, Germany
Abstract: It is shown that the notorious claim by Halpern et al. recently repeated in their comment that the method, logic, and conclusions of our "Falsification Of The CO2 Greenhouse Effects Within The Frame Of Physics" would be in error has no foundation. Since Halpern et al. communicate our arguments incorrectly, their comment is scientifically vacuous. In particular, it is not true that we are "trying to apply the Clausius statement of the Second Law of Thermodynamics to only one side of a heat transfer process rather than the entire process" and that we are "systematically ignoring most non-radiative heat flows applicable to Earth's surface and atmosphere". Rather, our falsification paper discusses the violation of fundamental physical and mathematical principles in 14 examples of common pseudo-derivations of fictitious greenhouse effects that are all based on simplistic pictures of radiative transfer and their obscure relation to thermodynamics, including but not limited to those descriptions (a) that define a "Perpetuum Mobile Of The 2nd Kind", (b) that rely on incorrectly calculated averages of global temperatures, (c) that refer to incorrectly normalized spectra of electromagnetic radiation. Halpern et al. completely missed an exceptional chance to formulate a scientifically well-founded antithesis. They do not even define a greenhouse effect that they wish to defend. We take the opportunity to clarify some misunderstandings, which are communicated in the current discussion on the non-measurable, i.e., physically non-existing influence of the trace gas CO2 on the climates of the Earth.
Comment: They note in the abstract that conventional "greenhouse" theory creates a perpetual process in violation of the conservation of energy.
Arthur P Smith's rebuttal of the G&T has been shown by the Kramm paper to be "fruitless."