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Energy, Climate change, Environment
Climate Action

Ozone layer

Ozone layer

Welcome to the European Commission’s page on protecting the ozone layer. This is your gateway to understanding the ozone layer’s vital role in sustaining life and why we must prevent further damage. Explore how EU policies and the Montreal Protocol are curbing the use of ozone-depleting substances (ODS) in Europe and worldwide.

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Achievements
Learn about significant milestones, including the EU's progress in cutting emissions and supporting ozone layer recovery
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ODS legislation
Guidance on Regulation (EU) 2024/590, the EU’s latest rules on ozone-depleting substances (ODS)
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International
Read about the Montreal Protocol and the Vienna Convention
FAQ
Find answers to common questions about ozone layer protection, ozone-depleting substances (ODS), their impact, and EU regulations on the matter
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Documentation
Access legislation, impact assessments, guidance, studies, and international documents related to ozone-depleting substances (ODS)

Facts & figures

🌍 100 chemicals phased out
Since 1987, the Montreal Protocol has phased out nearly 100 ozone-depleting substances globally, including CFCs, HCFCs, and halons
🇪🇺 EU emissions cut by 98%
From 1989, the EU has reduced its emissions of ozone-depleting substances by 98%, significantly exceeding international obligations
🌤️ Ozone layer recovery by 2066
The ozone layer is projected to return to pre-1980 conditions by approximately 2066 in the Antarctic, and 2045 in the Arctic
🌡️ Up to 1.5°C warming avoided
Phasing out ozone-depleting substances globally could prevent up to 1.5°C of warming by the mid-21st century
🌿 180 million t. of CO₂-eq. emissions prevented
The new EU Regulation (2024/590) will help prevent 180 million tonnes of CO₂ equivalent emissions

In the spotlight

The new Regulation (EU) 2024/590 on ozone-depleting substances (ODS) entered into force in March 2024, replacing the previous Regulation (EC) No 1005/2009. It introduces stricter yet simplified measures aimed at eliminating the remaining use of ODS within the EU. In line with the European Green Deal, the new Regulation supports the EU’s goal to combat climate change while ensuring compliance with international obligations under the Montreal Protocol. 

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