![Back From the Brink: Lessons Learned From Saving the Ozone Layer [Pdf] Primary](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Back From the Brink: Lessons Learned From Saving the Ozone Layer [Pdf] Primary")
Other
Back From the Brink: Lessons Learned From Saving the Ozone Layer [Pdf]
Good site for material on the people involved in inventing CFCs and those who discovered its effects on the ozone layer.
Columbia University
Nasa: Sedac: Ozone Depletion and Global Environmental Change
[Free Registration/Login Required] Mainly a thematic unit to give teachers a background in CFCs and ozone depletion, this site has a wealth of information for student research.
Other
Imperial College: Cf Cs
This site from the Imperial College of Science provides a chemistry based discussion of CFCs with formulas and Molecular structures.
Physics Hypertextbook
The Physics Hypertextbook: Refrigerators
This resource provides a detailed discussion about how refrigerators work. Also includes a history of the invention of refrigerators, and the physics behind how they work.
Other
Especial Gas Inc.: Chlorofluorocarbons Cfc's
Especial Gas Inc. provides a good description of what CFCs are and the dates that countries started to ban them. Explains where the name freon came from.