Summarizes what is known about two major variables involved in certain types of chemical pollution that seem to be changing the structure of the Earth's atmosphere. Discusses the greenhouse effect and the ozone layer. (TW)

This book was developed to highlight the risks that confront societies, and to indicate the most promising avenues for preemptive policies and actions. The document contains chapters on: (1) the emergence of change; (2) analyzing demographic factors; (3) assessing the future of urbanization; (4) reassessing nuclear power (including an analysis of…

One of the main activities assigned to the Governing Council of the United Nations Environment Programme (UNEP) is to review the world environmental situation to insure that emerging environmental problems of wide international significance receive appropriate and adequate consideration by governments. Accordingly, UNEP has assessed the state of…

Discusses the Airborne Antarctic Ozone Experiment (1987) and the findings of the British Antarctic Survey (1985). Proposes two theories for the appearance of the hole in the ozone layer over Antarctica which appears each spring; air pollution and natural atmospheric shifts. Illustrates the mechanics of both. Supports worldwide chlorofluorocarbon…

Describes how environmental problems in developing countries partly arise out of lack of development. Emphasizes that environmental education is critical under these conditions. Argues for the systematic integration of economic and environmental plans for various regions. (TW)