Just a few decades ago, the sky above Antarctica became a symbol of environmental crisis. Scientists had discovered a massive ...

Testing simulations based on different climate factors, researchers seemingly confirmed that efforts to limit the emission of ...

In contrast to chemicals containing chlorine and bromine, nitrogen oxides destroy ozone globally between 25 and 35 km. Nitrous oxide behaves in a similar way to chlorofluorocarbons (CFCs): it is ...

Ultra violet radiation from the sun breaks up these CFCs. The breaking up action releases Chlorine atoms. Chlorine atoms react with Ozone, starting a chemical cycle that destroys the good ozone in ...

resulting from an international ban on chlorine-containing man-made chemicals called chlorofluorocarbons (CFCs), has resulted in about 20% less ozone depletion during the Antarctic winter than ...

Interviewees include Secretary George Shultz, who persuaded President Reagan to phase out CFC chemical production; Professor Mario Molina, who won the Nobel Prize for identifying the CFC problem ...