Greenpeace offers an in-depth look at climate change (or global warming). Content includes a look at the cause of climate change, the scientific evidence that supports it, the problems that occur during climate change, foreboding...

A case study approach on fossil fuels is provided along with an objectives and question and answer section in learning more about this environmental subject.

Covers what is water pollution, how is it caused, the types of water pollution, its effects, and how you can conserve water and make it safe.

Discusses the scientific principles (the Peltier effect) and the reliability and operation of thermoelectric modules. Includes a link to several other pages, one of which contains an animation of their operation.

An interactive map used to find the current and forecasted air quality index for any location in the United States.