This model shows, graphically, the effect of depleting the Earth's ozone layer, allowing more infrared radiation to penetrate the atmosphere and damage living things.

For detailed instructions on using the program, take a look at the info window from the Ozone model.

Download the StarLogoT source code for the Ozone model:
Download ozone

To run this file you need StarLogoT2002 for the Macintosh.
(download StarLogoT)

Click on one of the pictures to see a quicktime movie of the model: