Carbon dioxide absorbs all radiation available to it in traveling 10 metes in the near surface atmosphere, which is called saturation. Doubling the amount of CO2 shortens the distance to 5 meters. Shortening the distance is not increasing the heat.
That simplistic analysis shows culpable naivety about the transmission of radiation through a gas. The CO2 saturation myth is easily debunked by anyone who has any comprehension of the subject. Atmospheric Science 1.01 and you clearly failed.
Radiation is absorbed and re-emitted over and over again as it passes through the atmosphere. The greenhouse gasses encountered continue to affect the transmission all the way up.
Crucially, it isn't at the ground level that matters. Greenhouse gases inhibit the ability of heat to be radiated at the top of the atmosphere by forcing the ultimate radiation zone higher to where the air is colder. Colder air radiates less heat and that inevitably means a hotter planet.
Just admit that you don't have anything like the understanding of physics to "think for yourself" on this subject.
Moreover, you are not thinking for yourself at all. You are simply regurgitating what you have read without the slightest attempt to critically analyse it. You won't learn anything at all while you continue to seek out sites laden with nonsensical notions that confirm your prejudices.
However I know that no matter how many times you and others here are shown to be completely wrong on this subject, you will all remain ignorant. None of you has ever acknowledged your multitude of errors even once. You just go away for a little while and come back with more nonsense.
You remain committed to ignorance because you have been duped in to thinking that you will be personally worse off if the world does anything to change how we obtain our energy. The people who are fooling you are the very same ones who have made trillions from fossil fuels. Too bad you are so gullible as to spread their propaganda for them.