Ozone Depletion

Timeline created by Jabril Abdul
  • Ozone Discovery

    Ozone layer is discovered by Christian Schoenbien.
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    Ozone is oygen.

    In 1845 the ozone layer is guessed by Auguste De La Rive and Jean-Charles De Marignac to be formed in the oxygen, and was approved by Thomas Andrews in 1856.
  • CFC

    CFC (Chlorofluorocarbons) is synthesized by Thomas Midgely. Chlorofluorocarbons is a band of compunds of refrigerants, aerosol prpoellants, foam blowing agents, also solvents used in the industries of electronics for cleaning.
  • Ozone safely depletes.

    Scientists Marcel Nicolet and David Bates predicts catalytic destruction of the Ozone.
  • The Ozone Continues to improve.

    The CFC market expands rapidly and catalytic destruction is neccessary in order to explain Ozone amounts.
  • Period: to

    Ozone officially Depletes.

    Nittrous Oxide is determined by Harold S. Johnston that tit could deplete the Ozone layer. Chlorofluorocarbon is detected in the earth's atmosphere from scientist James Lovelock. Warnings of Ozone's depletion due to CFC, which was announced by Sherwood Rowland and Mario MMolina. In March of 1977 the UNEP (United Nations Environmental Programme) addressed the first international meeting of the issue of the Ozone depletion.
  • Period: to

    Ozone Layer improves overtime.

    The CFC's market renews its expansion. British scientists from the Antarctic uncovers an ocurring Ozone hole.In Vienna a convention was held for the protection of the Ozone Layer and Montreal makes a protocol to the public that will have substances deplete the ozone layer effects.The Ozone layer also depletes globally.The end of the Chlorofluorocarbon production only notified in the United States and in Europe.
  • Nothing to worry about.

    The chlorofuorocarbon (CFC) recahes it's maximum concentration in the stratosphere. CFC's production comes to its demise nationally.
  • The Future.

    The new HCFC (Hydrochlorofluorocarbon) is phased out. The HCFC Productionsis killed off in a matter of time, and the Antarctic Springtime scientists discover that the Ozone hole fades away.