It's remarkable to think that a compound once renowned for its safety and stability in commercial products could have dramatically compromised the health of our planet, but that's just what chlorofluorocarbon (CFC) has done. This video segment adapted from NASA's Goddard Space Flight Center describes how CFCs, once widely used in refrigerators and aerosol cans, damaged the protective layer of ozone in our atmosphere. It took an international treaty to ban CFCs to begin the process of healing this protective layer.

This video is available in both English and Spanish audio, along with corresponding closed captions.