Falsification Of The Atmospheric CO2 Greenhouse Effects Within ...

Falsification Of The Atmospheric CO 2 Greenhouse Effects . . . 21
• The constant σ appearing in the T 4 law is not a universal constant of physics. It strongly
depends on the particular geometry of the problem considered. 8
• The T 4 -law will no longer hold if one integrates only over a filtered spectrum, appropriate
to real world situations. This is illustrated in Figure 4 .
Figure 4: Black body radiation compared to the radiation of a sample coloured body. The
non-universal constant σ is normalized in such a way that both curves coincide at T = 290 K.
The Stefan-Boltzmann T 4 law does no longer hold in the latter case, where only two bands
are integrated over, namely that of visible light and of infrared radiation from 3 µm to 5 µm,
giving rise to a steeper curve.
Many pseudo-explanations in the context of global climatology are already falsified by these
three fundamental observations of mathematical physics.
2.2 The Sun as a black body radiator
The Kirchhoff-Planck function describes an ideal black body radiator. For matter of convenience
one may define
B sunshine
λ
= B Sun
λ ·
R 2 Sun
R 2 Earth’s orbit
= B Sun 1
λ ·
(29)
(215) 2
Figure 5 shows the spectrum of the sunlight, assuming the Sun is a black body of temperature
T = 5780 K.
8 For instance, to compute the radiative transfer in a multi-layer setup, the correct point of departure is
the infinitesimal expression for the radiation intensity, not an integrated Stefan-Boltzmann expression already
computed for an entirely different situation.