Atmospheric solar short-wave radiation can reach the ground, but the outside surface of the long-wave heat radiation emitted by atmospheric absorption lines, thus the surface and lower atmosphere temperatures, similar to its role in greenhouse cultivation of crops, named the greenhouse effect. Atmospheric solar short-wave radiation can reach the ground, but the outside surface of the long-wave heat radiation emitted by atmospheric absorption lines, thus the surface and lower atmosphere temperatures, similar to its role in greenhouse cultivation of crops, named the greenhouse effect.