There's no greenhouse gas effect. How did climate alarmists get it so wrong?

The greenhouse gas effect is a myth. Most of my evidence is from Tom Shula :

• 1. The climate modellers tell us that most surface cooling at the surface of earth is done by radiation.
• 2. In reality (our real world), it's likely 99.6% of surface cooling is done by convection and conduction, with only 0.4% due to raditative emission of infrared.
• 3. Q: How did modellers make such a blunder?
  • 3.1. A1: They never debate their critics. The demonize critics. So they developed a culture of group-think designed to demonize critical, skeptical and new ideas.
  • 3.2. A1: They begin their models with a number of wrong assumptions. The first wrong assumption is that the body of earth (land and sea) can be treated as a "black body". So enabling them to use Stefan-Boltzmann Law to calculate radiative emissions. In fact, the body of earth (land and sea) cannot be treated as a black body because it is covered with an atmosphere.
    
    Look back in time to read Stefan and Boltzmann's experiments. Notice how Stefan and Boltzmann did all their experiments on "black bodies" in a vacuum. Their "Law" does not apply to bodies bathed in a gas - such as an atmosphere. I can't help but notice how even undergraduate level physics textbooks often elide this. Because gas (convection and conduction) cools the so-called black-body far more quickly than radiation alone! The conductive/convective cooling will then change how the "black body" cooling works. Gas cools by conduction and convection. The Stefan-Bolzmann Law has nothing to say about convection and conduction. Alarmists misused the Stefan-Boltzmann Law. Accidentally, and recklessly? - maybe. That was their first error. Their other errors follow on from their first blunder.