Panorama
 
 
 
 
 

HAS THE PROBLEM OF THE OZONE HOLE BEEN SOLVED?

Environmental Panorama
International
September of 2011


9/16/2011 - Ninety seven per cent of all ozone depleting substances controlled by the global treaty known as the Montreal Protocol have been phased out
New UNEP documentary examines its status
Paris, 16 September 2011 - The ozone hole is back in the news. In August the World Meteorological Organization (WMO) reported that signs of ozone depletion were again appearing over the Antarctic. A few months earlier, the Antarctic ozone hole was making headlines as scientists found that it was "creating rainfall in subtropical regions".

The problem of the ozone hole was supposed to be solved, wasn't it?

In fact, the closing of the hole in the world's stratospheric ozone layer is still many decades away and the effects and interactions of ozone depletion on climate change are just starting to be understood.

For these reasons, the OzonAction Programme of the United Nations Environment Programme (UNEP) decided to embark on an investigative journey through the history and science of the ozone layer, the actions taken to address this major environmental threat and the consequences both for the ozone layer and the Earth's climate system.

The resulting documentary, The Antarctic Ozone Hole: From Discovery to Recovery, examines the current state of the ozone layer, the effects of ozone depletion on climate change and the potential impact on communities worldwide.

Thid scientific journey, which had a worldwide screening today to mark the International Day for the Preservation of the Ozone Layer, is not a portrait of a planet in crisis but rather has experts from NASA, the British Antarctic Survey, Colombia University and other leading ozone researchers who offer hope and solutions to reducing ozone depletion. Indeed, they show that the Montreal Protocol, which covers ozone depleting substances (ODS), can deliver immediate climate benefits.

"The Montreal Protocol is a great example of what can be accomplished if nations, industry, technologists and scientists all combine to work on a problem," said Paul Newman from NASA's Goddard Space Flight Center.

One hundred and ninety-six countries have signed the Montreal Protocol, making it the first treaty of any kind to achieve universal ratification. All the world's governments are now legally obligated to phase out ODS under the schedules defined by the Protocol.

"The Montreal Protocol started off with baby steps. The countries took a decision and based on science, they changed the decisions. There were many amendments and adjustments, which finally made it so successful. There may be a lesson in that for the climate negotiations and climate decisions, too," said A.R Ravishankara from NOAA.

The International Day for the Preservation of the Ozone Layer or ("Ozone Day"), is an official UN day commemorating the date in 1987 on when the Montreal Protocol on Substances that Deplete the Ozone Layer was signed. Screenings of the film include a launch in Nairobi where UNEP has its headquarters, and at the Biosphère Environment Museum in Montreal, the city where the Protocol was signed. The video is available in English and French at

http://www.unep.org/ozonaction/antarctic

The international version will be provided to National Ozone Units for translation into local languages upon request. The narration of the French version is by Elisa Sednaoui, a young Franco-Italian actress and model.
Note to Editors:

About the Montreal Protocol

The Montreal Protocol focuses on the protection of the earth's ozone layer. This treaty has enabled both developed and developing countries to achieve a near total phase-out in the production and use of most ozone depleting substances.

Because the majority of ozone depleting substances are also potent global warming gasses, the actions taken under the Montreal Protocol have contributed significantly to the global effort to address climate change.

Interesting facts about the Montreal Protocol

The Montreal Protocol has achieved universal participation by all states in the world, the number of participating States is 196, an achievement unprecedented by any treaty;

It is estimated that without the Protocol, by the year 2050 ozone depletion would have risen to at least 50% in the northern hemisphere's mid latitudes and 70% in the southern mid latitudes, about 10 times worse than current levels;

The Montreal Protocol is estimated to have prevented:

-19 million more cases of non-melanoma cancer

-1.5 million more cases of melanoma cancer

-130 million more cases of eye cataracts

Ninety seven per cent of all ozone depleting substances controlled by the global treaty known as the Montreal Protocol have been phased out - but what remains is still a challenge to eliminate;

Global observations have verified that atmospheric levels of key ozone depleting substances are going down and it is believed that with implementation of the Protocol's provisions the ozone layer should return to pre-1980 levels by 2050 to 2075;

In 2003, political recognition of the Protocol came in the statement of then United Nations Secretary General Kofi Annan, who termed the Montreal Protocol "perhaps the single most successful international environmental agreement to date".

The Ozone Layer

The Ozone layer protects the earth's inhabitants from harmful UV radiation and is essential for life on Earth, as it screens out lethal UV-B radiation. Increased UV-B from ozone depletion can lead to:

More melanoma and non-melanoma skin-cancers

More eye cataracts

Weakened immune systems - this may contribute to viral reactivation and a reduction of effectiveness of vaccines

Reduced plant yields, changes in plant growth and form

Damage to ocean eco-systems and reduced fishing yields

Damage to wood and plastics

About UNEP DTIE's OzonAction Branch:
The OzonAction Branch of UNEP's Division of Technology, Industry and Economics is based in Paris and assists developing countries to meet and sustain their compliance obligations under the Montreal Protocol. With this programme's assistance, countries are able to make informed decisions about alternative technologies and ozone-friendly policies. With support from the Multilateral Fund for the Implementation of the Montreal Protocol, the Branch has implemented more than 1000 projects and services, benefitting more than 100 developing countries plus other services that assist another 40 developing countries.

Please see: www.unep.org/ozonaction

About The Secretariat

The Ozone Secretariat is the Secretariat for the Vienna Convention for the Protection of the Ozone Layer and for the Montreal Protocol on Substances that Deplete the Ozone Layer.

Based at the United Nations Environment Programme (UNEP) offices in Nairobi (Kenya), the Secretariat's main duties include arranging for and servicing all the meetings related to the Convention and the Protocol, arranging for the implementation of decisions taken by the Governments, monitoring and reporting on the implementation of the treaties, collecting and analysing data on controlled ozone-depleting substances, representing the treaties in relevant international and regional meetings and providing information to governments, international organizations and individuals on various aspects of the protection of the ozone layer.

+ More

Aviation Takes Action on Ozone and Climate Protection

9/16/2011 - The International Civil Aviation Organization announced the phasing out of halons in fire extinguishers on aircraft.
Montreal, 16 September 2011 At their working group meeting last month, the Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer heard from the Protocol's Halons Technical Options Committee (HTOC) and the International Civil Aviation Organization (ICAO) on yet another successful step in phasing out halons in fire extinguishers on aircraft.

Halons are among the most potent destroyers of the stratospheric ozone layer and are also potent greenhouse gases. Phasing out halons used in fire extinguishers on aircraft has been a difficult challenge because of their effectiveness in fire fighting that in turn helps to increase the safety of passengers. However, in 2003 the Parties to the Montreal Protocol asked the Ozone Secretariat of the United Nations Environment Programme (UNEP) and its technical experts to begin to work with ICAO to look into the possibility of modifying the regulatory requirements that mandate the use of halons on new aircraft without compromising the health and safety of airline passengers.

Thanks to the assistance of the Halon Technical Option Committee (HTOC), ICAO has amended two of its technical Annexes containing standards related to aircraft operations and airworthiness. Both Annex 6 - Operation of Aircraft - and Annex 8 - Airworthiness of Aircraft - have been amended to include a related environmental requirement.

"This was a landmark agreement that resulted from successful collaboration between two multilateral agreements, one for ozone protection and the other for international aviation. The Parties to the Montreal Protocol have been focusing their attention on enhancing collaboration and synergies with other international agreements and regimes. The Parties can be proud that the Montreal Protocol has again managed to contribute to both ozone and climate protection, this time through synergy in civil aviation sector, said Marco Gonzalez, the Executive Secretary of the Ozone Secretariat.

"The agreement to phase out halons was another step forward by the Organization to further strengthen the ability to minimize the impact of air transport operations on the environment. The assistance of the HTOC and UNEP to reach this agreement was instrumental in realizing this achievement, and we look forward to continuing this important inter-agency cooperation to better serve the international community," said ICAO's Secretary General, Raymond Benjamin.

"The progress made by ICAO is important for the ozone layer protection. It is also significant as it demonstrates the commitment of ICAO to the environmental protection. For the first time an operative annex to the Chicago Convention was changed to respond to an environmental concern. This is a win-win for the ozone layer and civil aviation. The United States congratulates the HTOC, ICAO and the Ozone Secretariat, said Cindy Newberg, Chief of the Alternatives and Emissions Reduction Branch of the US Environmental Protection Agency (USEPA).

ICAO will continue to monitor the research and development of halon alternatives to ensure that the target dates can be met and will follow up on research into a viable halon alternative for cargo area fire extinguishing systems.

"We note that there is still much to be done to make sure that alternatives are identified and can be effectively used, to develop a viable path forward for cargo bays, and ensure that it does not become necessary to pursue use of the essential use provisions to support civil aviation on-going needs. We encourage the HTOC and Ozone Secretariat to continue to work with ICAO," added Ms. Newberg.

"[We] would like to thank the HTOC in particular for its ongoing work with ICAO bodies in supporting the reductions in mandating the use of halons in new air frames. We would also like to thank the ICAO Secretariat for facilitating this excellent outcome and can agree that HTOC can continue its work as needed with ICAO bodies," said Annie Gabriel from the Department of Sustainability, Environment, Water, Population and Communities of Australia.

Notes to Editors:

Nearly three decades ago, atmospheric scientists warned that the annual appearance of the Antarctic ozone hole and the probability of increasing depletion of the stratospheric ozone layer had serious consequences for all life forms. This came after discoveries in the mid-1970s that some man-made chemicals could destroy ozone, resulting in increased ultraviolet radiation reaching the Earth.

Although ozone is a small component of the atmosphere, the ozone layer plays a vital role in shielding life on Earth from harmful ultraviolet (UV-B) radiation from the sun. Human exposure to UV-B is known to increase the risk of skin cancer, cataracts, and a suppressed immune system. UV-B exposure can also damage terrestrial plant life, single-cell organisms and aquatic ecosystems.

The evidence that human activities were destroying the stratospheric ozone layer was compelling. Emissions of certain man-made chemicals used in many products such as the halons used as fire extinguishants in aircraft were reaching the stratosphere, between 10-16 kilometres and up to 50 kilometres above the Earth's surface, and destroying ozone molecules. With the appearance of the ozone hole, many countries joined efforts for the first time to combat this global environmental threat. All countries of the world have ratified the landmark international environmental treaty, the 1987 Montreal Protocol on Substances that Deplete the Ozone Layer. Parties to the Montreal Protocol are committed to eliminating production of ozone-depleting substances by meeting specific phase-out deadlines.

ICAO is specialized agency of the United Nations, ICAO was created in 1944 to promote the safe and orderly development of international civil aviation throughout the world. It sets standards and regulations necessary for aviation safety, security, efficiency and regularity, as well as for aviation environmental protection. The Organization serves as the forum for cooperation in all fields of civil aviation among its 190 Member States.


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Source: United Nations Environment Programme
Press consultantship
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