An ecological view of the world is necessary to avoid the destruction of the environment. (MF)

Considers two interlinking threats to human existence - the depletion of oxygen and the leaching of nitrogen-and explores what can be done to overcome them. (WY)

Discusses the need for productive reforms to return the ecosphere to its proper balance. The author claims such reforms should deal with eliminating socially wasteful types of production and at the same time improving the quality of life. (AS)

Article tells how a visit to a game refuge inspired students to create songs about their experience. (GB)

This paper is concerned with problems in assessing the behavior of trace substances introduced into natural systems, sampling models of five classes that might be used in the study of contaminants are reviewed. Adaptation of an industrial experimentation method and techniques used in economic geology to ecological sampling is recommended.…

Discusses economic factors as the essential causes of world environment deterioration. Presents case for critical and prompt action in prevention of natural resource exhaustion and pollution, particularly by means of replacement level, population control, and consequent economic organization. (JM)

Article lists and explains the three groups that comprise the ecological family and which are designed to help children take a first step toward discovering the real meaning of ecology. (Author/RK)

Major consequences of present and additional environmental quantities of DDT pesticide are predictable by mathematical models of transport, accumulation and concentration mechanisms in the Wisconsin regional ecosystem. High solubility and stability produce increased DDT concentrations at high organism trophic levels within world biosphere…

Spill control methods have been developed to control, treat and monitor spills of hazardous materials during their manufacture, transport, and storage. Spills on both land and water, and methods of treatment and control in these environments were studied. A discussion of detection and monitoring equipment and protective clothing concludes this…

Population, depleted resources, pollution and other environmental issues are reviewed from an international perspective. The imperative nature of world-wide cooperation is emphasized for dealing effectively with ecological problems. Directions in which this cooperation should be effected are presented. (JP)

This is the sixth in a series of Conservation Yearbooks prepared by the U.S. Department of the Interior as environmental reports to the public concerning problems of water resources in the United States. Information presented includes descriptive information, statistical data, and extensive color photographs. The methods of presenting information…

Charges that militants are exaggerating the threat of ecological disaster and offers evidence in support. (Author)