On This Day | Sept. 16
In 1987, nations meeting in Montreal adopted the Montreal Protocol, an agreement to protect the ozone layer by phasing out chemicals that deplete it.
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In 1987, nations meeting in Montreal adopted the Montreal Protocol, an agreement to protect the ozone layer by phasing out chemicals that deplete it.
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In 1987, nations meeting in Montreal adopted the Montreal Protocol, an agreement to protect the ozone layer by phasing out chemicals that deplete it.
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