Reports relationships between population density and mortality, fertility, public assistance rate, juvenile delinquency rate, and admissions to mental hospitals in Chicago. (AL)

Reviews environmental studies which show that national climatic fluctuations vary over a wide range. Solar radiation, earth temperatures, precipitation, atmospheric gases and suspended particulates are discussed in relation to urban and extraurban effects. Local weather modifications and attempts at climate control by man seem to have substantial…

Describes a model for the future evolution of a stable ecosystem in a densely-populated society. Discusses designs for limiting population growth, resource-conserving settlements, and ways to feed growing cities. (MLH)

Topics covered in the upcoming AAAS Annual Meeting on "Science and the Quality of Life" are outlined and briefly discussed. (DT)

Reviews New York City's Environmental Protection Administration two-year effort in air, water, noise, and solid waste pollution control. Successes and difficulties are seen as applicable to other urban areas. Long-term planning considers population control, poverty programs, traffic management, and land use. (JM)

The pros and cons of air pollution control efforts are discussed. Both national and regional air pollution control plans are described. Topics of discussion include benefit-cost analysis, air quality regulation, reducing ozone in the urban areas, the Los Angeles plan, uncertainties, and policy implications. (KR)

Suggests that human adaptations to urban overload create characteristic qualities of city life that can be measured. Studies are cited which offer insights into (1) the behavior patterns of city-dwellers, (2) their perception of social responsibility, (3) the "atmosphere" of great cities, (4) the tempo of life, and (5) cognitive maps of cities.…

Describes the highly complex mixture of gaseous and particulate matter found in urban air. Explains progress made in the understanding of the physics and chemistry of air pollution, the effects of precursors on ozone, the role of biogenic hydrocarbons, and the principal benefit of methanol-fueled vehicles. (RT)