Subject: Re: Professor Richard Lindzen on Climate Change: Never Take Yourself
Newsgroups: alt.global-warming,alt.fan.rush-limbaugh,can.politics,alt.politics.liberalism,alt.politics.democrats,alt.politics.usa.republican
From: Paul Aubrin <paul.aubrin@invalid.org>
Organization: Eweka Internet Services
Date: Fri, 18 Jul 2025 18:28:44 +0200
Le 17/07/2025 à 11:16, chine.bleu a écrit :
> Paul Aubrin wrote:
>>> we contribute a meager 3% (15ppm to the ~420ppm total).
>
> 'meager' is a presumption of reactivity and linearity.
>
>> Locally, COâ has an effect on outgoing IR in the atmospheric window.
>> But at the
>
> How do we restrict local CO2 to our locality?
>
If everywhere the effect is locally small, it is globally small.
A MODTRAN calculator can help you evaluate how much of a the radiative
flux of a 1 m² black surface laid on the ground would be blocked by the
sky, and the équivalent black body temperature of the sky (as the cold
source) :
Tropics, clear skies.
280 ppm -> 368.64 W/m² -> 283.958 K (10,828 °C)
420 ppm -> 369.26 W/m² -> 284.078 K (10,928 °C)
284.078 - 283.958 = 0,12 K = 0,12 °C = 0,216 °F
Please note that only 1/3 of the thermal power of the ground is
evacuated by IR radiations.