17
/it/
it
AIzaSyCYaC8UkdPkQKLFUmpasLV5eC3M802CrcA
23130
2065
2

16 sett 1986 anni - Montreal protocol

Descrizione:

Montreal protocol is an international treaty designed to protect the ozone layer by phasing out the production of numerous substances that are responsible for ozone depletion.

Aggiunto al nastro di tempo:

8 set 2017
2
0
488
Environmental Movement

Data:

16 sett 1986 anni
Adesso
~ 32 years ago
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