Pollution

First introduced 35 years ago, the Opposing Viewpoints series has developed and set the standard for current-issue studies. With more than 90 volumes covering nearly every controversial contemporary topic, Opposing Viewpoints is the leading source for libraries and classrooms in need of current-issue materials. Each title explores a specific issue by placing expert opinions in a unique pro/con format. The viewpoints are selected from a wide range of highly respected and often hard-to-find sources and publications.