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Montreal Protocol's success
webCredibility Rating
4/5
High(4)High quality. Established institution or organization with editorial oversight and accountability.
Rating inherited from publication venue: United Nations
Often cited in AI governance discussions as an analogy for how international coordination on transformative or dangerous technologies might be structured; useful as a real-world precedent for global risk governance.
Metadata
Importance: 35/100news articlenews
Summary
This UN News article highlights the Montreal Protocol's success in phasing out ozone-depleting substances as a landmark example of effective international cooperation on a global environmental threat. It is frequently cited as a precedent for how coordinated global governance mechanisms can address existential or catastrophic risks. The article draws lessons relevant to other global challenges requiring coordinated international action.
Key Points
- •The Montreal Protocol is considered one of the most successful international environmental agreements, achieving near-universal participation among nations.
- •It demonstrates that global coordination on complex technical risks is achievable when scientific consensus, political will, and economic incentives align.
- •The Protocol's success is often referenced as a template for governing other global risks, including climate change and emerging technologies like AI.
- •Multilateral institutions and binding agreements with verification mechanisms were key to its effectiveness.
- •The ozone layer's recovery shows measurable, verifiable progress is possible through international regulatory frameworks.
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# Ozone layer recovery is on track, due to success of Montreal Protocol
© NASA
The ozone layer, a thin shield of gas, is seen from space.
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# Ozone layer recovery is on track, due to success of Montreal Protocol
9 January 2023[Climate and Environment](https://news.un.org/en/news/topic/climate-change)
The Earth’s ozone layer is on track to recover within four decades, a UN-backed panel of experts said on Monday.
But the group also warned of the unintended impacts on the ozone layer of new technologies such as geoengineering.
In a [report](https://ozone.unep.org/system/files/documents/Scientific-Assessment-of-Ozone-Depletion-2022-Executive-Summary.pdf "(opens in a new window)") published every four years on the progress of the [Montreal Protocol](https://www.unep.org/ozonaction/who-we-are/about-montreal-protocol "(opens in a new window)"), the panel confirmed the phase-out of nearly 99 per cent of banned ozone-depleting substances.
The Montreal Protocol was [signed in September 1987](https://news.un.org/en/story/2022/09/1126841) and is a landmark multilateral environmental agreement that regulates the consumption and production of nearly 100 man-made chemicals, or ‘ozone-depleting substances’ (ODS).
The overall phase-down has led to the notable recovery of the protective ozone layer in the upper stratosphere and decreased human exposure to harmful ultraviolet (UV) rays from the sun.
“The impact the Montreal Protocol has had on climate change mitigation cannot be overstressed,” said Meg Seki, Executive Secretary of the UN Environment Programme’s ( [UNEP](https://www.unep.org/ "(opens in a
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