User Login
Forgot your password? Click Here.
Playlist
What are playlists? Click Here.



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 beginning to be understood; soils, where greater understanding is contributing to more protection; and the atmosphere, which we have already managed to alter to such an extent that the climate of the planet may have been altered. (23 minutes)



 
    

Item#: This title is currently not available.
Copyright date: ©1993




     


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




The Environment: A Historical Perspective
View Video Clip
From the first agricultural settlements, to the industrial revolution, to agribusiness and widespread urbanization, humans have been transforming the environment for thousands of years. But now, with rain forests disappearing at an appalling rate, po...(more details)
 
Waste Disposal
View Video Clip
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)
 
The Politics of Trees
View Video Clip
This program with Bill Moyers looks at the ongoing debate on how we manage the rapidly disappearing old-growth forests of the Pacific Northwest. Is the timber industry pressuring the forest service to cut trees in violation of environmental laws? Are...(more details)
 
The Environment

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 de...(more details)
 


See additional titles in Oceanography | Environmental Problems & Management