text: Surface Radiation: I set this in accordance with the NASA 2011 energy budget since the other two energy budgets hugely exaggerate this to accommodate their huge back radiation values. I showed in my analysis in the paper Infrared-Absorbing Gases and the Earth's Surface Temperature that there was an upper bound of 5.8% on the amount of back radiation incident on the surface. This was without even invoking the fact that heat flows from warm to cool surfaces and conditions when the air is warmer than the surface other than within a very few tens of meters are infrequent. Because I set the back radiation warming at an estimated value of 1%, the Surface Radiation is (51 + 1 - 7 - 24)% = 21%.