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Every day, in every way, humans seem to find new ways to despoil our planet. This program takes a global look at such problems as PCBs and acid rain. In the end, breathtaking imagery enables us to visualize the meaning of the greenhouse effect and depletion of the ozone layer. (23 minutes)



 
    

Item#: This title is currently not available.
Copyright date: ©1989




     


Only available in the US, the United Kingdom and South Africa.




The Search for Clean Air
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This program presents a clear, forceful, and thorough exposition of the problems of air pollution: its causes; its effects on forests, streams, and human health; and the issues involved in correcting the problems. Narrated by Walter Cronkite, the pro...(more details)
 
Waste Disposal
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Household waste can cause pollution of all kinds, but more and more of these wastes can be recycled effectively and economically. The result is reduced pollution and a useful new source of raw materials and energy. Hospital waste disposal presents th...(more details)
 
Principles of Ecology

The principles of ecology establish the relationships that interconnect humans as a biological species with each other and with their environment. This program also considers the Gaia Hypothesis and the view of the planetary ecosystem as a gigantic l...(more details)
 
Fragile Ecosystems

This program looks at three fragile ecosystems, all in danger of destruction from human activity: marshes, the implication of whose destruction on wildlife, water tables, and an increasing number of other aspects of the entire biosphere is only begin...(more details)
 
Fighting Pollution

The war on pollution in all its forms is a pressing priority that brooks no delay. Although much remains to be done, the technology to restore our environment is already in existence. This program describes three examples of such technology: the puri...(more details)
 


See additional titles in Weather & Climate | Environmental Problems & Management | Survey / Basic Concepts