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Large ozone hole recorded over Antarctic for 2020, but Montreal Protocol efforts have minimized the damage

Cold temperatures and strong winds combined to create one of the deepest and largest holes in the ozone layer in rece

International Day of the Girl 11 October

Now more than ever, with a global pandemic and the Earth’s environment at breaking point, science is at the forefront

A tribute

Professor Mario Molina, our most esteemed champion of ozone layer protection has passed away.

Kigali Amendment hits milestone 100th ratification, boosting climate action

The Kigali Amendment to the Montreal Protocol, an international agreement to cut the use of climate-warming hydrofluo

Montreal Protocol Achievements

The Montreal Protocol on Substances that Deplete the Ozone Layer has led to significant environmental, health and eco

Precious Ozone - The Size of it

Space is closer than you think.

Ozone scientist Mario Molina honoured by UN for lifetime of achievement

Mexico's Molina - already a Nobel laureate - was instrumental in the identification of the Antarctic ozone hole...now

Countries begin preparing for implementation of the Kigali Amendment
At their 39th meeting in Bangkok from 11 to 14 July, the Open-Ended Working Group of the Parties to the Montreal Protocol
New ‘Ozone Heroes’ campaign celebrates efforts to protect all life on Earth

In honour of the 30th anniversary of the landmark Montreal Protocol on Substances that Deplete the Ozone L

Montreal Protocol Parties Discuss HFC Management Issues and Agree to Continue Exploring Ways Forward

Bangkok, 24 April 2015 – Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer

Ozone Layer on Track to Recovery: Success Story Should Encourage Action on Climate

Nairobi/Geneva, 10 September 2014 (UNEP/WMO) - The Earth's protective ozone layer is well on track t

Record Stratospheric Ozone Loss in the Arctic in Spring of 2011

GENEVA 5 APRIL 2011 (WMO) ­ Depletion of the ozone layer ­ the shield that protects life on Earth fr

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Kigali Amendment Kigali Amendment
Montreal protocol progress
Kigali Amendment

The Kigali Amendment to the Montreal Protocol entered into force on 1 January 2019 after the threshold for the agreement to enter into force was met on 17 November 2017, when it was ratified by 20 parties.

Working towards climate neutrality Working towards climate neutrality
Greening the blue
Working towards climate neutrality

The Ozone Secretariat is part of the UN’s “Greening the Blue” efforts to move towards climate neutrality. The Secretariat works towards climate neutrality by measuring the carbon footprint of Vienna Convention and Montreal Protocol meetings ...

World Ozone Day

Ozone for life: 35 years of ozone layer protection

32 years and healing

Keep cool and carry on

30th anniversary of the Montreal Protocol: we are all ozone heroes

Ozone and climate: restored by a world united

Precious ozone: 30th anniversary of the Vienna Convention and international ozone day 2015

Earlier celebrations of international ozone day