Earth watch

Explains what the ozone layer of the atmosphere is, what destroys it, and how this depletion affects humans and life on earth.

Provides information about climate, discussing global warming and its effects, looking at how natural events such as volcano eruptions impact the climate, and including tips on what can be done to limit the changes people make to the climate.

Describes the causes of acid rain, its harmful effects, and efforts being made to solve this environmental problem.

Describes rain forests, the life they support, and efforts to protect them.