Temperature is caused by the movement of all the atoms or molecules that make up bodies. Author; Rogelio Pérez C Summary The greenhouse effect explains that the temperature of the atmosphere originates because the surface of the earth heated by the sun's rays emits thermal radiation, which is absorbed by the gases that absorb infrared radiation, called greenhouse gases, which are equivalent to 0.04% of the gases in the atmosphere, being the main CO2, according to the theory, these gases retain thermal radiation of 255 kelvin emitted by the surface of the earth, and re-emit in all directions at a higher temperature (288 kelvin), which is equivalent to an increase of 33°C or Kelvin, due to the greenhouse effect. This work explains that the temperature of a system such as the atmospheric cannot be explained with an effect of retaining and emitting heat by certain molecules within this system, but that this is caused by the kinetic energy produced by all the mo...