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1 jan 1987 ano - Montreal Protocol

Descrição:

Montreal Protocol signed to ensure the safety of the earth's ozone layer is signed in Montreal, Canada. The Protocol establishes international cooperation on the phase out of all ozone depleting substances, including the chlorofluorocarbon(CFC) refrigerants which have been used in HVAC equipment.

Adicionado na linha do tempo:

11 mar 2020
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Data:

1 jan 1987 ano
Agora
~ 38 years ago