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)

Examines a variety of options and costs involved in the safe disposal of radioactive wastes from nuclear fission reactors. (JR)

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…

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…

Proposes an international research laboratory to investigate environmental factors in human health. By international cooperation unnecessary duplication and waste of resources can be avoided and long-term studies can examine various world-wide environments. (JM)