Books by Joan R. Callahan

An engaging, nontechnical discussion of the infectious diseases and other biological threats that pose the highest risk to humans, presented in the context of relevant environmental and sociological trends. What biological agents should we truly be afraid of?

Anthrax is only one of many biological threats. This compact reference handbook covers everything from disease-causing viruses and bacteria, to harmful insects, poisonous plants, dangerous animals, and other types of living threats to human life.

The changes and significant developments that have accompanied the relatively young field of environmental science are documented in this addition to the Oryx Frontiers of Science Series. From major causes for environmental concern to possible solutions, Environmental Science presents a balanced and comprehensive view of the collective fields of ecology, sociology, demography, and waste management. Special focus is on important environmental events and discoveries that occurred between 1996 and 1999. Additionally, related information is presented on key people, career opportunities, organizations, resources, and more. This is a must-have reference tool for understanding a larger view of environmental science.