I admit to being stronger in biology than physics lol.
Finer points aside, are you and Into suggesting there’s no such things as a greenhouse gas?
I am not suggesting it all. I am saying it, plain and simple. There is no such thing as a 'greenhouse' gas.
To raise the temperature of the Earth, additional energy is needed.
* No gas or vapor is a source of energy.
* The output of the Sun hasn't changed appreciably.
* You can't make energy out of nothing.
* It is not possible to slow or trap heat.
* It is not possible to trap thermal energy. There is always heat.
* It is not possible to trap light.
* It is not possible to reduce the radiance of Earth (by limiting the escape of infrared light) and increase its energy at the same time.
No gas or vapor in the atmosphere acts like a Magick Blanket. Heat to and from space is by radiance, not by conduction or convection. The ONLY way the Sun can heat the Earth is by radiance. The ONLY way the Earth can lose heat to space is by radiance.
CO2, water, methane, etc. do absorb infrared light. It is just the same as if the surface heated the atmosphere by conduction. It's just another way for the surface to be cooled by heating the atmosphere. Whether it's done by conduction or radiance it is the same.
Absorption of infrared from the surface does not warm the Earth. ALL of it, the surface, the CO2, the methane, the water, ALL of it radiates into space.