Timeline

Ozone Timeline

By imani brazzile

  • first observation of ozone layer harm

    first observation of ozone layer harm
    in the early 1970s scientist first recognized and strted to be concerned that the Ozone was being Damaged

  • whats was causing the damage?

    scientist discovered that chlorofluorocarbons (CFCs), which was insinde of everyday use products like hair spray, was causing the damage to the ozone layer

  • The first step to helping the Ozone layer

    The first step to helping the Ozone layer
    The Montrel held a meeting discussing ways to prevent us to stop damaging the ozone. they set limits on the use of CFCs and other chemicals related to that

  • Voting for a stronger Montreal

    Voting for a stronger Montreal
    in london at this time there was a meeting that was internatuional and they where asking for the montreal protocal to become more strict because anartica was damged the most.

  • Anartica

    Anartica
    around this time antartica had the biggest ozone hole on record. the stratophere clouds which had very low tempatures chemically altered with CFCS causing there to be a hole in the earths ozone blanket

  • Future opinions

    Future opinions
    in the future their are opinions that the ozone hole will get worst if the montrel don't become more stern about their rules