Happy he who could learn the causes of things (Virgil, Georgics 11) There is clearly a place for a book on the environmental aspects of trace elements in coal,

Environmental Implications of Expanded Coal Utilization focuses on the increasing consideration of coal as an alternative source of energy. This book comes as a

The U.S. Environmental Protection Agency (EPA) was introduced on December 2, 1970 by President Richard Nixon. The agency is charged with protecting human health