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The greenhouse effect
|
Kathlyn Gay |
Examines evidence that rising levels of carbon dioxide in the atmosphere may be changing the earth's climate. Also discusses how and why scientists study climatic changes. |
OL1846206W |
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Too Late
|
Geoffrey Maslen |
127 pages ; 21 cm |
OL21156678W |
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The greenhouse effect
|
Jack C. Harris |
Discusses the causes of the greenhouse effect, what it does to our planet, and how it can be stopped. |
OL3186089W |
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Our endangered planet
|
Mary King Hoff |
Describes the delicate ecological balance among all living things on land, the damage done by humanity in contributing to the extinction of various species, and ways of preventing further harm. |
OL3502670W |