Discusses the ways in which aquaculture can be a cost-effective wastewater treatment alternative. Fifteen strategies were selected as being appropriate and technologically feasible wastewater treatment systems to compare for the size of community under consideration. Costs for each stage of each strategy were estimated and compared. (Author/MA)

Examines alternative energy sources in the USSR including wind energy, solar energy, tidal energy and geothermal energy. (MA)

Summarizes information regarding the importance of water to biological systems, the total ecosystem and its interdependent parts. (CS)

Addressing the Seventh American Water Resources Conference, Washington, D. C., October, 1971, Anthony Wayne Smith, President, National Parks and Conservation Association, presents an expose on how rivers should be managed by methods which restores and preserve the natural life balances of the localities and regions through which they flow. The…

This article expresses one person's efforts and enjoyments in establishing and managing a small pond in New England. The original purpose of the pond was to attract birds. (MDR)

Reviews the pollution control history of the River Thames since the time of the Roman occupation. Particular emphasis is given to the restoration policies of the last thirty years. By 1950, the waters of the Thames were nearly devoid of wildlife. Today, the river is one of the world's cleanest. (MA)

This article describes procedures taken by the U.S. Navy to minimize the environmental import and pollution in harbors and coastal areas resulting from ships, aircraft and shore-based Navel operations. (SL)

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…

Discussed are some of the ways to handle municipal and industrial wastewater treatment sludge presented at the 1978 American Chemical Society meeting. Suggestions include removing toxic materials, recovering metals, and disposing treated sewage sludge onto farm land. Arguments for and against land use are also given. (MA)

Discusses the sources and effects of nutrients in wastewater, and the methods of their removal in wastewater treatment. In order to conserve water resources and eliminate the cost of nutrient removal, treated effluent should be used wherever possible for irrigation, since it contains all the ingredients for proper plant growth. (JR)

Summarizes information about salt marshes, including descriptions of their development and structure, details of their values in terms of commercial fishing, stabilization of coastal zones, "reclamation" for grazing and cropfields, recreation and aesthetics. (CS)

Demand projections indicate that Oahu's natural ground water supply will be fully developed by the year 2000. Supplementary water resources will need to be developed in keeping with the growth of the economy and population. The author, chairman of the Honolulu Board of Water Supply, authoritatively discusses types of ground water in Hawaii, and…

Nonpoint source pollution, water pollution not released at one specific identifiable point, now accounts for 50 percent of the nation's water pollution problem. Runoff is the primary culprit and includes the following sources: agriculture, mining, hydrologic modifications, and urban runoff. Economics, legislation, practices, and management of this…