Examine one image of ozone concentrations above Antarctica and determine how the different ozone levels are depicted. Continue with each subsequent year, noting whether or not there was an increase or decrease in ozone levels. Discuss the trend observed and possible causes. Discuss the importance of using satellite imagery in the analysis of the ozone hole. Antarctica is a difficult environment for research, at best.
Satellite imagery makes it easy to cover the atmospheric changes on a daily basis.
This also allows scientists to examine the changes over time. Chlorofluorocarbons Chlorofluorocarbons are the chief cause for the decline in the ozone layer. Have students research sources of CFCs and examine the chemical reaction that causes the breakdown of ozone.