chlorofluorocarbons

Discusses the dual problem of too much ozone in the troposphere creating smog and the depletion of the ozone layer in the stratosphere which shields harmful ultraviolet rays.

The ozone layer protects life on Earth from harmful ultraviolet radiation but this protective shield is being damaged by chlorofluorocarbons and other pollutants that are now being generated on the Earth.

Describes the ozone layer and its important function in protecting the earth from dangerous ultraviolet rays. Also examines the threats posed to the ozone layer by chlorofluorocarbons and other pollutants and what can be done to stop further damage.

Explains the nature and importance of the ozone layer, how it is most likely damaged, and what measures are being taken to protect it.

Discusses the scientific studies of the ozone layer in the Earth's atmosphere, and the causes and effects of depletions of this layer.

Studies the important role of atmospheric ozone in protecting the Earth, and tells how man-made chemicals are causing worrisome holes in the polar ozone layers.