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The Dramatic loss of the Ozone
they noticed the Dramatic loss of ozone in the lower stratosphere over Antarctica was first noticed in the 1970s -
In 1994 the ozone decressed even more than in the 1970's
By 1994, the total ozone in October was less than in the 1970's -
documentation of the antartic Ozone hole
In 1985 The British Antarctic Survey's first documentation of the Antarctic ozone hole -
expirement SESAME
In 1994 and 1995 European scientists conducted SESAME which was an expiremant