We are going to see if we have radiative equilibrium, from the incoming sunlight (51% absorbed by the ground, 19% absorbed by the atmosphere), the outgoing IR radiation, and the atmospheric IR that produces the greenhouse effect.

The greenhouse effect makes the Earth's surface emit more than the 51 units it receives from the sun. Some of this IR goes directly to space (6 units); the rest of the 117 emitted units (111) is absorbed by the atmosphere, which then emits the energy as IR both to space (64 units) and to the Earth (96 units). The total IR out to space (64 + 6 = 70 units) is equivalent to the net solar radiation absorbed (100 incoming - 30 reflected/scattered due to albedo). Thus, the entire Earth-atmosphere system is in radiative equilibrium with the sun and space.

Unfortunately, the surface of the Earth receives a total of 147 units of radiation (51 solar + 96 IR from atmosphere) while it emits only 117 (6 that goes directly to space and 111 that gets absorbed by the atmosphere), so the surface of the Earth is out of radiative balance. Normally, this would cause the Earth to heat up and burn because of the continuous net absorption of energy. Fortunately, there are other methods for getting rid of the excess absorbed energy. Sensible heat transfer, which is heat conducted to the air from the ground and convected upward, and latent heat transfer, which occurs when water evaporates from the ground, is transported upwards, and condenses out at clouds. These contributions are small relative to the total radiation burden, but they are significant and necessary.