The reason it is false is because air loses heat as well...
Human caused climate change is nonsense
Thank you for your arguments. I will now rebut your points. First of all, CO2 is indeed used by plants to grow. And it is true that one effect of CO2 in the atmosphere is more vigorous plant growth. However, CO2 also does something else very well. That something is holding on to heat. It is an extremely powerful greenhouse gas: that is to say that it traps heat, Just like the glass roof of a greenhouse. Your next point is a myth, Based on a misunderstanding of how climate change works. You are correct that adding more CO2 will not absorb much more IR (infra-red) radiation at the surface. The reason it is false is because air loses heat as well as gaining it, And thus the saturation point is much higher than 80 ppm. I accept that you may not wish to admit your error on this matter, But don't worry, It is a very common misconception. Your final point is false as well. You are correct that the number of humans on the Earth is equivalent to 3 grains of sand on a 100 kilometre beach, But CO2, Amongst many other greenhouse gases, Are very strong greenhouse gases, And can affect the climate disproportionately. Akhenaten may not understand this, But I hope the voters will. Thank you Akhenaten for this debate. Please make any rebuttals you have, And then we shalt move on to the rest of our arguments.