"Each title in the highly acclaimed Opposing Viewpoints series 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 publications"-- "Opposing Viewpoints is the leading source for libraries and classrooms in need of current-issue materials. The viewpoints are selected from a wide range of highly respected sources and publications"--...

Explores the nature of ghosts and poltergeists and possible earthly explanations for them.

"The national debate over the legalization of marijuana is heating up as states begin to legalize its use for medicinal and recreational purposes. The title in the Greenhaven series deepens the discussion on marijuana-should it be legal or not? Does it help or harm users? Should medicinal use only be allowed? Answers to these questions will be debated for years to come"--

This collection of article pro and con on energy alternatives examines whether alternative energy sources can effectively replace fossil fuels, the extent to which the benefits of wind power outweigh its disadvantages, whether utility-scale solar power is a practical alternative energy source, and the advantages and disadvantages of other energy sources.

"Opposing Viewpoints: Performance-Enhancing Drugs: Opposing Viewpoints is the leading source for libraries and classrooms in need of current-issue materials. The viewpoints are selected from a wide range of highly respected sources and publications"--

Provides ooposing viewpoints on the topic of abortion.

"Garbage and Recycling: Is Garbage a Serious Problem?; Is Recycling Effective?; Is Toxic Waste Disposal a Serious Problem?; What Strategies Will Help Reduce Waste and Save Money?"--

"Criminal Justice: Opposing Viewpoints is the leading source for libraries and classrooms in need of current-issue materials. The viewpoints are selected from a wide range of highly respected sources and publications"--