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Christian Friedrich Schonbein discovers the ozone while experimenting with the electrolysis of water.
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Auguste de la Rive and Jean Charles de Marignae suggest that the ozone is a form of oxygen.
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Thomas Andrews, an Irish chemist and physicist, confirms that the ozone is a form of oxgen.
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Maya alfred cornu meausre the solar specturm, which is the total distribution of electromagnetic radiation coming from the sun, and finds a sharp cuttoff in ultraviolet light.
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Years of satelite data begin to show measurable ozone depletion globally.
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G.M.B. Dobson developes the Dobson Ozone Spectro-meter, or the spectrometer and begins regularly measuring the intensity of its UV radiation.
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Thomas Midgley produces Chorofluorocarbons
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CFC's market rapidly expands.
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James Lovelock detects CFC's in the atmosphere.
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Sherwood Rowland and Mario Molina warn the world that the ozone is depleting because of CFC's
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United Nations Environment Program holds a meeting in Washington to address the depletion of the ozne.
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US bans non-essiential use of CFC's
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Shigeru Chubachi measures low ozone over Antartica.
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Abnormally low ozone observed all around the world
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CFC production ends in U.S. and Europe
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Maximum CFC concentrations in stratophere are reached
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Bristish Antartic Survey scientist discover recurring springtime Antartic ozone hole.