Air Info Now: What is Ozone?
Describes the chemical makeup of ozone, the good ozone does when it is high, and the bad health effects it has when close to the surface.
ESA Kids: Losing the Ozone Layer
Explains why we need the ozone layer, and has a picture of the ozone hole viewed from space.
Ozone Guarding our Earth
Learn how ozone in the stratosphere makes living on the Earth possible.
The Ozone Hole Tour
An overview of the ozone layer and the development of the ozone hole over the Antarctic.
The Ozone Layer: What's Going On Up There?
Explains how the ozone layer is being depleted, and what you can do about it.
Wikipedia: Ozone Depletion
Looks at the ozone cycle, causes of ozone depletion, and a history of research about the ozone hole.
Wikipedia: Ozone Layer
Encyclopedia article that explains what the ozone layer is, and why we need it.