Earth watch

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

Examines issues related to water, including the different sources, wastewater, pollution, droughts, the problem of supplying clean water to the world's increasing population, and more.

Looks at farming techniques and technology, pest and quality control, and the global problem of providing food for the world's population.

Describes rain forests, the life they support, their deterioration, resources they provide, and efforts to protect them.

Examines a range of endangered species--including rain forest tigers, woodland birds, marine plants and animals, and more--discussing why they are threatened and what is being done to save them.

Explains what the ozone layer of the atmosphere is, what destroys it, how it is measured, how this depletion affects humans and life on earth, and what can be done to save it.

Explains how acid rain forms; describes what it does to trees, lakes, stone, and people; and discusses solutions to the problem.

Examines the different kinds of waste, from household trash to industrial waste, describing where it goes and how it affects the environment.

Examines a range of endangered species from rain forest tigers to woodland birds, discussing why they are threatened and what is being done to save them.

Examines the different water sources in the world, how water is treated, and the problem of supplying clean water to the world's increasing population.