Deprecated: Return type of YDataTable::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/bdavid/prod/georef/yamldoc/ydclasses/ydata.inc.php on line 428

Deprecated: Return type of YamlDataTable::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/bdavid/prod/georef/yamldoc/ydclasses/yamldata.inc.php on line 295
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inScheme:
  - 100141
  - 100244
prefLabel:
  en: 'stratospheric pollution'
  fr: 'pollution stratosphérique'
altLabel:
  en:
    - 'depletion of the ozone layer'
    - 'destruction of the ozone layer'
    - 'deterioration of the ozone layer'
  fr:
    - 'dégradation de la couche d''ozone'
    - 'destruction de la couche d''ozone'
    - 'détérioration de la couche d''ozone'
    - 'réduction de la couche d''ozone'
broader:
  - 2524
related:
  - 2215
notation:
  - 2540