FEATURES & DETAILS:
- Copyright: 1993
- Color
- MARC records, Catalog Card Kit and Single Main Entry Cards are available
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PRODUCT SUMMARY
This title is still available for purchase, however we recommend the completely new DVD title Water Quality from the Environmental Science for Students DVD series which is also from Schlessinger Media.
Though water is essential to survival, most take this precious resource for granted. In fact, only 1 percent of the water on this planet is available for human needs. This award-winning program explains the hydrologic cycle, as well as the many ways that water is used, wasted and polluted by industry, agriculture, power plants, landfills, industrial chemicals and oil spills in the ocean. The Earth at Risk Scholars perform tests on upstream and downstream runoff, while an interview with an ecologist from a wastewater processing plant shows how organic material can be used to treat and clean sewage. Some solutions discussed include water conservation, working for new legislation to protect water sources and educating people about water pollution. Part of The Earth at Risk Environmental Video Series that examines the threats facing Earth and the environment.
EDITORIAL REVIEWS
"
...The Earth at Risk series is highly recommended...Editor's Choice." - Video Librarian"The videos present up-to-date facts about the topic with charts, computer graphics, statistical facts, and interviews with environmentalists and other scientists. Each program moves quickly and smoothly from segment to segment; the segments featuring teenage students will especially appeal to teen viewers who will be able to duplicate the experiments themselves." - School Library Journal
"The series message...is effectively made...well produced...Good choices for school and public libraries."- Library Journal