Peixoto and Oort (1992) in their book on climate physics show that even for timespans of a year, this metric provides a good snapshot of the planetary radiative imbalance at the top
of the atmoshpere.
Pretend the earth can be approximated by a 1 - d model for earth, where the earth is treated like an isothermal body (say a nice copper sphere) with some sort
of atmoshpere.
The source of the Earth's temperature is the sun, and the only mechanism the Earth (inclusive
of the atmoshpere) has to shed that energy is through radiation.
Chances are - if a planet has gravity - it has some kind
of atmoshpere!
for example... you can go back in ice core samples as far as 800,000 years, and still locked in the ice is a tiny amount
of the atmoshpere from that time, telliing us volumes of information.
Not exact matches
Recently redecorated and refurbished to a delightful modern, and comfortable standard in the old world friendly
atmoshpere of a country hotel
of years gone by.
As one example
of no science, why not just use the satellites and their instruments that are up there and measure the «greenhouse effect» — Simple answer, they did that, and there is absolutelky no signature in the
atmoshpere of the CO2 greenhouse effect.
Proof
of concept projects working with the European Centre for Medium - Range Weather Forecasts (ECMWF) based in Reading - which operates the Copernicus
atmoshpere Monitoring Service (CAMS) and Climate Change Service (C3S) on behalf
of the European Commission - are already working with this data to develop predictive tools with applications across the network sector: turning data into information.
Just a further comment — the so - called greenhouse effect is also the effect
of temperature being raised as a result
of the energy stored in the
atmoshpere, due to that thermal resistance
of the atmosphere acting on the infra - red emissions from the ground back out.
I understand the superficial attractiveness behind the proposition that the
atmoshpere contains some gases that are largely transparent to incoming solar radiation and therefore the majority
of this solar radiation finds its way through the atmosphere to the surface whereupon it heats the surface and this heat is, inter alia, radiated from the surface at a different wavelength at which wavelength the atmosphere (or some gases within the atmosphere) is not transparent such that some
of this radiated enerrgy is «trapped» thereby effectively warming the planet.