Our endangered planet.

Description:

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.

subjects: Ozone layer,  Management,  Endangered species,  Juvenile literature,  Atmospheric Greenhouse effect,  Nature,  Global warming,  Effect of human beings on,  Water,  Nature conservation,  Rare plants,  Rare animals,  Greenhouse effect, Atmospheric,  Groundwater,  Ocean,  Pollution,  Atmosphere,  Ecology,  Wildlife conservation,  Extinction (Biology),  Ocean, juvenile literature,  Extinction (biology), juvenile literature,  Endangered species, juvenile literature,  Nature conservation, juvenile literature,  Nature, effect of human beings on,  Extinction (biology),  Greenhouse effect, atmospheric,  Global warming, juvenile literature,  Ozone layer depletion