pollution

Discusses various aspects of water, including the water cycle, tides, and water pollution.

Despairing because the air has become so filthy that it blocks the sun's rays, the richest man in the world decides to use his money to build a tower so that his grandson can experience the sun as it once was.

Crisis planet earth: Gasses are collecting in the earth's atmosphere, forming a barrier to hold heat in. Scientists are rushing to find a solution to this global warming. Into the depths: A team of scientists sails the Great Lakes to explore how long these bodies of water can withstand their current levels of pollution.

Explores the composition of Earth's atmosphere and what we call "air," its importance to life on Earth, the damage that has been done to the air and the ozone layer, and what we can do to clean it before it's too late.

Examines the growing problem of air pollution, its effect on the ozone and stratosphere and what we can do to improve air quality.

Examines the effect of automobile exhaust fumes on the environment, wildlife, and human health and explores possible solutions.

Examines air, atmosphere, and clouds and how they are affected by pollution.

Explores the scientific, technological, and social background of the many environmental problems plaguing our air and atmosphere.

Presents conflicting viewpoints concerning the future availability of drinking water, threats to surface and groundwater, and solutions for water pollution.

A cumulation of the weekly articles on current social issues.