World Ozone Day celebrates success of Montreal Protocol
WMO joins the global community in marking the International Day for the Preservation of the Ozone Layer on 16 September. It celebrates the progress in phasing out chemicals which destroy the ozone layer which protects us against the sun’s harmful ultraviolet rays.

This year’s theme is the Montreal Protocol: fixing the ozone layer and reducing climate change.

“The international treaties to protect the ozone layer have made a dramatic and measurable difference to protecting people and planet. They show the power of multilateralism. And they should inspire hope that, together, we can avert the worst of climate change and build a sustainable and resilient world,“ said UN Secretary-General António Guterres in a message.

“Limiting the rise in global temperature to 1.5 degrees Celsius is still possible if we immediately and drastically accelerate climate action. I have proposed a Climate Solidarity Pact and an Acceleration Agenda to help achieve this. I urge all leaders to work together to put them into effect – and to support these efforts by getting behind the Kigali Amendment to the Montreal Protocol and limiting planet-heating hydrofluorocarbons,” he said.

The Kigali Amendment, which was agreed in 2016, seeks to phase out hydrofluorocarbons (HFCs). Its ratification and implemention could avoid up to 0.5°C of warming by 2100. Combining the transition away from greenhouse gases with energy efficiency measures in cooling equipment could double this figure, according to the Ozone Secretariat.

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WMO’s Global Atmosphere Watch network of observing stations monitors stratospheric ozone and is tracking the evolution of this year’s ozone hole.

A Scientific Assessment report published by WMO and the UN Environment Programme in January 2023 said that the ozone layer is on track to recover within four decades.

The report confirms the phase out of nearly 99% of banned ozone-depleting substances has succeeded in safeguarding the ozone layer, leading to notable recovery of the ozone layer in the upper stratosphere and decreased human exposure to harmful ultraviolet (UV) rays from the sun.

If current policies remain in place, the ozone layer is expected to recover to 1980 values (before the appearance of the ozone hole) by around 2066 over the Antarctic, by 2045 over the Arctic and by 2040 for the rest of the world. Variations in the size of the Antarctic ozone hole, particularly between 2019 and 2021, were driven largely by meteorological conditions.

Nevertheless, the Antarctic ozone hole has been slowly improving in area and depth since the year 2000.

Information and assets on World Ozone Day are available here
Language
English

Featured Media

WMO 2023 Calendar Competition - Photographer: Jonggyu KIM

Type of news

News

Publish Date

Saturday, September 16, 2023 - 07:45

Tags

Ozone

Editorial Section

CPA

Contact

MDebray

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It's International Day for the Preservation of the #Ozone Layer: while we wait for the September data, let's have a look at how we can monitor ozone from space and why it's important to do so: youtube.com/watch?v=mT15w5D6…

ESA Earth Observation

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🌊 Dive into the depths of wonder! 🐚 Here are 10 stunning plants and sea creatures that call the ocean floor home. 🌿🦑

Discover the hidden beauty of our oceans! 🌊🌏 treehugger.com/stunning-unde…

Via @Treehugger

UN Biodiversity

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RT @CANPacificIs: At 1.5C of warming, 90.6% of our reefs are at severe thermal risk, impacting communities, cultural identity, livelihoods, food and water security, and sectors like tourism and fisheries.

We must #EndFossilFuels #FastFairForever

Greenpeace International

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RT @greenpeace_esp: 🔴EN DIRECTO
📢Salimos a las calles de todo el 🌍para exigir el fin de los combustibles fósiles de forma RÁPIDA, JUSTA y DEFINITIVA

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Greenpeace International

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RT @IMariashikongo: One my new art pieces and one of my philosophies in my life and drivers . As a direct victim of the fossil fuels where my family lost lives and was tortured, all I can say is drop this Neocolonialism and free your selves #EndFossilFuels #FastFairForever #GlobalClimateStrike23

Greenpeace International

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RT @fridays_india: We may be just one of the 650 actions demanding from world leaders meeting at UN next week to #EndFossilFuels and make sure that the transition is #FastFairForever but we will make it happen✊ fightfossilfuels.net #GlobalClimateStrike #Delhi @DelhiFFF @GretaThunberg

Greenpeace International

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RT @GreenpeaceAT: Anstatt falscher Lösungen muss Österreich echten Klimaschutz vorantreiben: Raus aus Öl & Gas, schneller Ausbau der erneuerbaren Energien und starke Klimaschutzgesetze! #Klimastreik

Greenpeace International

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Climate change adaptation is a development imperative. Find out how Country #ClimateAndDevelopment Reports assess adaptation needs and investments: wrld.bg/ctMh50PM8gp #ClimateExplainer

World Bank Climate

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Here's a look at the atmospheric moisture impacting eastern New England and New Brunswick Canada today transported northward with Hurricane #Lee via MIMIC microwave Total Precipitable Water imagery. re.ssec.wisc.edu/s/82OaAI #NYwx #MAwx #NHwx #CTwx #MEwx

UW-Madison CIMSS

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How can the #GlobalStocktake drive transformation through joint action on #climate, nature & food? 

Join @FAO’s @KavehZahedi2030 & others to learn more:

🕚 11:15 EDT
📅 19 Sept
💻 Livestream: youtube.com/@nature4climat
Zoom: tnc.zoom.us/j/99603311621 #ForNature #ClimateWeekNYC

FAO Climate Change & Biodiversity

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Tropical Depression #Fifteen Advisory 4: Tropical Depression Expected to Become a Tropical Storm This Weekend. hurricanes.gov

National Hurricane Center

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Post-Tropical Cyclone #Lee Advisory 44: Lee Becomes Post-Tropical as it Approaches Nova Scotia, But It Is Still Producing Hurricane-Force Winds. Nhc Advisories Will Continue. hurricanes.gov

National Hurricane Center

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Tropical Storm #Margot Advisory 36: Margot a Little Weaker as it Continues a Clockwise Loop Over The North-Central Atlantic. hurricanes.gov

National Hurricane Center

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Invasive alien species pose a global threat, playing a major role in 60% of animal and plant extinctions.

A new @IPBES report reveals their impact on nature, economies & health.

It warns that #IndigenousPeoples are especially vulnerable.

Via @IPBES @WWF

UN Biodiversity

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Today is World #OzoneDay and we have positive news to share...🥁

A 🆕 @EUEnvironment report confirms that 🇪🇺 is actively phasing out the use of ozone-depleting substances.

This is in line with our commitment under the @UN Montreal Protocol.

Read more➡: eea.europa.eu/en/newsroom/ne…

EU Climate Action

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5 am AST Saturday Sep. 16 Key Messages for Post-Tropical Cyclone #Lee. Wind, rainfall, and coastal flooding hazards continue for New England and Atlantic Canada despite Lee becoming post-tropical. nhc.noaa.gov/refresh/graphic…

National Hurricane Center

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Today's #WorldOzoneDay!🌍

Life on earth needs sunlight. But the energy emanating from the sun would be too much for life to thrive were it not for the #OzoneLayer.

The sun makes life possible, but the ozone layer makes life as we know it possible.☀️ un.org/en/observances/ozone-…

ipbes

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Sat Sep 16 1030 UTC: A Tropical Storm Warning is in effect for the Atlantic High Seas. More info: hurricanes.gov/text/MIAHSFAT…

NHC_TAFB

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