The German-based European Institute For Climate and Energy (EIKE) reports here on a paper just published by German scientists Horst-Joachim Lüdecke and Rainer Link appearing in the IJMPC Journal (International Journal of Modern Physics C), see here.
The full paper is available as a pdf file here in English.
The authors claim that CO2 does have a modest warming effect on the global temperature, but:
The effect is harmless (to the contrary, CO2-increases and slight global warming are beneficial for man and thus desirable) and show that the overly alarmist prognoses for future climate developments as fully inappropriate.”
The two authors applied a simplified model to determine a climate sensitivity for mean global warming for a hypothetical doubling of CO2 concentration to be 1.1 °C based on radiative flux without feedback effects.
The conclusion states (emphasis added):
This paper demonstrates that a basic 1-dimensional 1-layer model with different atmospheric and top of atmosphere long wave radiation fluxes and temperatures, and including the reflections of the long wave radiation at the surface of the Earth and atmosphere can reproduce with excellent agreement the observed global average surface temperatures and radiation fluxes. This requires that all emission and absorption processes are correctly introduced into the model. In particular the direct emission of long wave radiation from Earth to space and the temperature dependence of latent and sensible heat have to be taken into account. Our model yields a change in the surface temperature of the Earth of roughly 1.1°C for an additional radiative forcing of 3.7 W/m2 – caused for instance by a hypothetical doubling of the present CO2 concentration in the atmosphere, which is in good agreement with the appropriate IPCC value, if no feedback ampli cation (or attenuation) is considered.”
Debate papers welcome
Readers are encouraged to join the discussion at the EIKE website linked above. Comments in English are welcome as well. Anyone who believes to have good physical critical points to introduce against the publication and is prepared to join the IJMPC peer-review process is warmly welcome to present a debate paper to the IJMPC.
Sounds like just the thing for the publisher of the site Science Of Doom.