Here is something new for you. Is heat a substance?
Not new for me. Heat is not a substance in physics. It is an extrinsic property of matter. If you found a blog that says otherwise, let me know. However in days of yore heat was thought to be phlogesten. (sp?)
Right...heat is not a substance...heat is defined as a transfer of kinetic energy between two systems. Guess what? So called greenhouse gasses cannot possible trap a transfer of kinetic energy in the Lower Atmosphere. Can't happen....doesn't happen...never will happen.
Can happen. Does happen. Always will.
IR from earth absorbed by CO2 within a few meters. CO2 does not re-radiate that energy. Nowhere for the energy to go but to heat the atmosphere. Do you have any other ideas where the energy goes?
Off the deep end are we? That has to be the stupidest thing you have ever said. Care to take it back, or should I move that quote to my sig?
Maybe my comment was not clear to you. Your phrase, "trap a transfer of kinetic energy" is not clear. In an open system gas energy is free to move and cannot be literally "trapped". Let me rephrase my comment for you in more detail.
15 micron IR from earth is absorbed by CO2 within a few meters, and transfers that energy to excited CO2 molecular vibration states. There is a low probability that CO2 molecules will re-radiate vibration energy as 15 micron photons. The vibration energy is transfered directly as kinetic energy to air molecules. Otherwise there is nowhere else for the energy to go but to heat the atmosphere. Do you have any other ideas where the energy goes?
If you disagree with the above, which step do you disagree.
You can think in terms of heat as a transfer of kinetic energy between two systems. Kinetic energy is the energy of mass in motion.
Think of the kinetic energy of the vibrating molecules of earth radiating 15 micron photon energy to the vibration mode of CO2 molecules, which then transfers its vibrating energy to linear kinetic energy of air. Thereby the air heats.
I would be honored if you put this clarification in your sig in its full context.