economic aspects

Discusses the relationship of money and profit on sports and how it affects those involved.

Examines the relationship of economic to military power as it affects the rise and fall of empires.

Text and accompanying photographs discuss population growth, problems of overpopulation, population distribution, ethnic differences, women's roles, and environmental concerns for the future.

Discusses the benefits of water, and looks at the harmful effects and methods of preventing water pollution.

Explains what fossil fuels are and how they are used for energy, and discusses debates over their use, exploring arguments on each side.

Presents a collection of essays that debate the various issues related to smoking, including its health risks, the tobacco industry, smoking regulation, and more.

An introduction to the many natural resources that provide Mexican people with food products and jobs in fishing, forestry, mining, industry, and tourism.