|Antarctica as photographed from the spacecraft Galileo|
Why did the ozone hole develop over Antarctica, and not over Detroit or some other manufacturing center where chlorofluorocarbons, or CFCs, are released prodigiously? The reasons are explained by Rebecca L. Johnson, who participated in NSF's Antarctic Artists and Writers Program in 1991, 1994, and 1997.
Image by: Antarctica as photographed from the spacecraft Galileo. NASA