Remove N2 without replacing it with something else and the earth would have a much lower average temperature.<p>You clearly don&#x27;t believe me, and are unwilling to do the research.  But, think for a second, 78% of the atmosphere, zero net effect on temperature, or you’re using an overly simplified model.<p>PS: I like most people did not build a weather model by myself. I did dig into one fairly deeply when looking into building a turn based civilization game, and I must say they get vastly more complex than you might think.