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1 janv. 1987 - Montreal Protocol

Description:

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.

Ajouté au bande de temps:

11 mars 2020
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Date:

1 janv. 1987
Maintenaint
~ Il y a 38 ans