Three Story Boards
Summer smog Story Board
This is a series of pictures with accompanying text which explains how summer smog (ozone) can be formed in a large coastal city.
Winter smog story board
A series of pictures, with accompanying text, which explains how winter smog is formed.
The Greenhouse Effect story board
A series of pictures, with accompanying text, which explains the natural greenhouse effect. They also explain how human activities are contributing to the enhanced greenhouse effect.