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.
year: 1991, 1992, 1995
call number/section: 333.91, 363.73, 1000
subjects: water, pollution, groundwater, management, pollution, extinction (biology), juvenile literature, man, influence on nature, endangered species, nature conservation, atmosphere, ozone layer, global warming, greenhouse effect, atmospheric
Editions
Hoff, Mary King
Lerner Publications Co. (1991)
Describes the global uses and abuses of groundwater and suggests ways to preserve this valuable resource.
Schools: 6
Hoff, Mary King
Lerner Publications (1992)
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.
Schools: 0
Hoff, Mary King
Lerner Publications (1995)
An examination of the earth's atmosphere and the factors which threaten its stability, such as ozone loss and global warming.
Schools: 1