The well documented science of volcanology is based on evidence gleaned from the great eruptions of the past 200 years. It proves that volcanoes are the only significant source of global air pollution. Going backwards from the 1991 medium sized eruption of Pinatubo in the Philippines and 1981 eruption of El Chicon in Mexico, Dawson tells his story of how volcanoes, not man burning fossil fuels causes global air pollution. His chapter on Pinatubo is based on the eyewitness account of his nephew, the US Navy Supply Officer stationed at Subic Bay. He shows by volcano studies and graphs that for over 200 years 95 per cent of global air pollution has come from volcanoes, that there has been NO global warning trend over the last 200 Years. He also defines the ozone (what it is and does, and explains the hole in the ozone and how it works). He describes the 'Greenhouse Effect' as over rated and tells what really occurs that could or could not cause future problems with global warming. Part II of this book covers the six most significant eruptions in recorded history and graphically illustrates the awesome power of a single volcano and man's ridiculous notion to control it.