The Ozone Cartoons

By Roman Maciel

  • Wonder Gas

    Wonder gas” CFCs were invented in 1928
    for commercial applications.

  • Bad News About CFC's

    Scientists discover a link between CFCs
    and ozone layer depletion.

  • UNEP Study

    In 1977, the United Nations Environment Programme (UNEP)
    sets up a co-ordinating committee to study the ozone layer.

  • Ban Wonder Gas

    In 1978, the United States of America, Canada,
    Sweden and Norway ban the use of CFCs in aerosols.

  • UNEP Protects Ozone Layer

    In 1981, UNEP starts inter-governmental negotiations to protect the ozone layer.

  • No Proof of CFC Damage

    After 1982, in the absence of other moves,
    the consumption of CFCs increases again. Industry demands proof of ozone depletion due to CFCs.

  • Found the Proof

    Governments agree to study, exchange information and
    protect the ozone layer - through the Vienna Convention for the
    Protection of the Ozone Layer (1985). Scientists continue to find proof of ozone depletion.

  • The Montreal Protocol

    In 1987, 46 governments agree to a fifty per cent cut in the
    production and consumption of CFCs by the year 2000; a freeze
    in production and consumption of halons by 1992; further
    controls linked to assessments by experts.