Boundary Condition Thought Envelope
The following diagram and math is what is taught at ivy-league universities in climate science and general physics programs. In the many discussions I’ve had with advocates of climate alarm and its version of a greenhouse effect in the open atmosphere, it is always claimed to be a “toy model which nevertheless tells us important things about basic features of the atmosphere and climate“.
I hope people can understand that if the basic features which are believed in are incorrect, then it follows that the rest of the science done based upon the context of those false features will likewise be incorrect. The problem would propagate. The supposed ‘basic features’ one interprets or believes in establishes the paradigm, or the boundary condition envelope, within which subsequent interpretation and analysis will take place and be directed by. Case in point is the Ptolemaic, Earth-centred conception of the system of planets, moon, and Sun: if you think that the Earth is the centre of the universe, are you subsequently going to have realistic ideas about the Earth and universe?
Math of the Boundary Condition
The reasoning of the greenhouse effect diagram from above goes quite simply, as follows:
The temperature on the surface of the Earth is proportional to the energy received from sunlight plus the energy received from the atmosphere.
The energy received from the Sun is the Fs(1-A)/4 term, where Fs is the energy flux density from Sunlight, and A is the reflectivity of the Earth surface and so (1-A) is the portion of sunlight which gets absorbed and thus contributes to surface heating.
Typo alert: The energy received from the atmosphere is the σT14 term; in the diagram, there should not be an ‘f’ in front of that term. The typo is not mine, this diagram comes from Harvard University. The temperature of the atmosphere, T1, is due to a fraction of the energy from the surface being absorbed into the atmosphere on that radiation’s way out to space.
And the energy at the surface, which is a result of the addition of the two above fluxes, is σT04.
As it is the surface temperature which is sought-after in this thought envelope, then the first two terms are added together so that:
1] σTo4 = Fs(1-A)/4 + σT14
Again, what this says is that the temperature on the Earth’s surface, T0, is proportional to the sum of the energy from sunlight, and from the atmosphere.
Physics of the Boundary Condition
The first problem with the paradigm being established here is that it treats the atmosphere as a source of energy. Is it? The sun and its sunlight is surely a source of energy, but is the atmosphere an actual source of energy, or is it actually just a store-house of energy in as much as something that has a temperature holds internal thermal energy?
It is the latter. The atmosphere is not a source of energy. It has no chemical or nuclear or other processes going on inside it which produces heat, and it simply passively holds a temperature…a cooler temperature, typically, than the ground surface.
A second problem is that if sunlight is averaged over the surface of the Earth, then the power density of sunlight is this Fs(1-A)/4 term which has a temperature forcing value of -18°C.
Does that make sense to you? If you think of sunlight, in your paradigm, as only being so strong so as to heat things up to -18 then how are you going to melt ice into water, create clouds and water vapor, get a sunburn, or scald your feet on hot sand at the beach? Isn’t sunlight responsible for all those things? It is. But if your paradigm treats the strength of sunlight as only -18°C, then you need to invent something else to make up the deficit, and that is why the atmosphere is conjectured to be an additional source of energy.