1960 expenditures are 31 times those of 1902. A rising crime rate is the widely accepted reason, but the authors show that the increase is the joint effect of components which are independent of crime rate change: population growth, inflation, urbanization, and motor vehicle increase. (DB)

A description of the 1970 Hayward Study of Attitudes toward family planning and population control among undergraduates, unmarried students at California State College, Hayward. Discussion of the need to persuade people to have fewer children and the future direction of population control policies also presented. (LK)

Air pollution in urban areas is an expression of the poor management of our total environment, and its control goes far beyond the correction of individual sources. (Author)

As man faces larger number of people, he will tend to disregard individualism more and more, and ultimately to reduce man to nothingness. This article explores some of the long term implications of such decisions and the professional responsibility for the resulsts. Fresh look at the morality of decision making appears urgent. (Author)

Description of thirteen proposals by the President and six faculty-sponsored changes in department structure, curriculum, credits, grades, majors and faculty roles that were adopted at St. Norbert College in Wisconsin. (Editor)

Discusses major threats to the world's environment (nuclear war, population growth, poverty, energy abuse, and toxic wastes). Indicating that world leaders are lacking in competence and the will to face these long-range global issues, offers suggestions to these leaders and others in resolving global environmental issues. (JN)

Large-scale space industrialization is not a viable solution to the population, energy, and resource problems of earth. The expense and technological difficulties involved in the development and maintenance of space manufacturing facilities, space colonies, and large-scale satellites for solar power are discussed. (AM)

Describes the geographic distribution, demographic characteristics, and consumer preferences of Puerto Ricans, Mexicans, and Cubans in the United States. Suggests that a projected rapid growth in numbers of Hispanics with unique characteristics will produce a consumer market that will require special attention from businesses. (Author/MJL)

This paper examines factors contributing to the flow of undocumented migrants from Mexico, demonstrating the problem to be both massive and enduring. Focused on are the inadequate growth of productive employment, income inequality, and rapid population growth. (Author/EB)

This study examines the impact of Black population size and rate of increase on White population change in American suburbs between 1960 and 1970. The data indicate that there is no tipping point. (Author)

Discusses computer simulation approach of Limits to Growth, in which interactions of five variables (population, pollution, resources, food per capita, and industrial output per capita) indicate status of the world. Reviews other books that predict future of the world. (CS)

Presents four activities that use graphing calculators, spreadsheets, and graphing software to model population growth. (MKR)

Presents an activity in which students predict the growth of the population of the United Stated using three different models. (Author/NB)