what is global dimming and what causes it
Best Answer: Global Dimming is the world wide lessening of illumination from the Sun compared to previous records. In other words, the Earth is seemingly getting darker. However this has nothing to do with the Sun and is a phenomenon caused by the amount of gases in the atmosphere, mostly due to human pollution. A similar effect occurs after a mass volcanic eruption as the huge amounts of Sulfurous gases fill cloud over the skies and cause dimming and accompanied by a drop in temperature. Source(s): Own Knowledge