GREENHOUSE EFFECT

Not all the components of the atmosphere contribute to the greenhouse effect. The gases of greenhouse absorb the infrared photons expressed by the soil warmed by the Sun. The energy of these photons is not enough to cause chemical reactions, to break covalent bonds, but simply it increases the energy of rotation and of vibration of the implied molecules. The excess of energy is transferred then to other molecules by the molecular collisions, in the shape of kinetic energy, that is to say of heat, increasing the temperature of the air.