WOD2025
World Ozone Day 2025
From science to global action
Forty years ago, nations came together under the Vienna Convention for the Protection of the Ozone Layer and agreed to take appropriate measures to protect people and the planet from harmful UV radiation pouring through a potentially damaged ozone layer.
On World Ozone Day, we celebrate this achievement and look forward to another forty years of action. The Montreal Protocol and Vienna Convention remain crucial for monitoring ozone and UV radiation levels, as well as ozone-depleting substances and other chemicals, such as hydrofluorocarbons (greenhouse gases), being phased out under the Kigali Amendment.
The ozone treaties have epitomised the concept of moving from Science to Global Action. And they will do so for many years to come.
Poster assets
Graphic visualisation of this year’s WOD theme. Preview and download our full range of A1 posters with crop marks for printing.
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Social media kit
The social media assets are available as mp4 and static images for use across Instagram, LinkedIn, and X.
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Campaign videos
Watch and share this year’s accompanying WOD campaign video available here.
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ED video message
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Theme in the six UN languages
Arabic
من المعرفة العلمية إلى التحرك العالمي
Spanish
De la ciencia a la acción global
Chinese
从科学走向全球行动
French
De la science à l'action globale
English
From science to global action
Russian
От науки - к глобальным действиям
Date in the six UN languages
Arabic
بروتوكول مونتريال
16 أيلول 2025
اليوم العالمي للحفاظ على طبقة الأوزون اليوم العالمي للأوزون
Spanish
El Protocolo de Montreal
16 de septiembre de 2025
Día Mundial de la Capa de Ozono
Chinese
《蒙特利尔议定书》
2025年9月16日
世界臭氧日
French
Le Protocole de Montréal
16 septembre 2025
Journée mondiale de la couche l'ozone
English
The Montreal Protocol
16 September 2025
World Ozone Day
Russian
Монреальский протокол
16 сентября 2025 г
Международный день озонового слоя













