The ozone gas layer in the upper atmosphere is essential for life on earth because it prevents harmful ultraviolet rays from reaching the ground. On Earth, however, ozone can be harmful to living things. The debate over ozone's dual nature is explored as scientists, policy makers, and the public confront ozone smog on earth and the ozone hole in the upper atmosphere.
Don Nardo is a historian and award-winning writer who specializes in the ancient world, especially the civilizations of Greece and Rome. He began as a actor and worked with the National Shakespeare Company before turning to writing screenplays and teleplays and, soon afterward, devoting much of his time to historical research and writing. In the past two decades, he has published nearly two hundred volumes on diverse historical topics. And having earned numerous favorable reviews, he is widely recognized as the country's leading writer of historical works for young adults. He is also versed in various other subjects and as a result is frequently asked by publishers to write books on a number of scientific and literary topics.
Mr. Nardo also composes and arranges orchestral music, having started composing in his early teens. Over the years he has turned out more than eighty musical works, including 2 symphonies, 4 string quartets, several concertos, a film score, incidental music for stage productions, and several commissions, the most recent a double concerto for violin and Portuguese guitar written for two noted musicians. He is also the resident composer and arranger for the Amadis Orchestra, based in Connecticut. For more information, see his official web site at www.nardopublishing.com and his more extensive biography at Wikipedia.
