Smog, as defined by Dictionary.com, is fog that has become mixed and polluted with smoke. The word smog was coined in 1905 in a newspaper report of a meeting of the Public Health Congress, in which Dr. H.A. des Voeux gave a paper entitled "Fog and Smoke." On July 26, 1905, Dr. des Voeux was quoted in the Daily Graphic stating, " it required no science to see that there was something produced in great cities which was not found in the country, and that was smoky fog, or what was known as `smog.'" There are two commonly known types of smog, industrial smog and photochemical smog. Industrial smog, mainly a winter phenomenon, is a combination of fog mixed with the smoke and sulfur dioxide produced from the burning of coal, most prevalent with the start of the industrial revolution at the turn of the century. The second type...