According to the report of the World Meteorological Organization, etc.
Flying over Antarctica takes time… Recovery 2066
The depleted ozone layer is projected to recover primarily by 2040 worldwide, except in the polar regions.
According to the British Guardian and AFP news agency on the 10th (local time), the “Scientific Assessment of Ozone Layer Depletion” (SAOD) report released that day contained content that the ozone layer will be fully restored by 2040 throughout the world, except in polar regions. The report is jointly evaluated by the World Meteorological Organization (WMO), the United Nations Environment Program and US-EU government agencies and released every four years.
According to the report, it is expected to take some time in the case of the polar regions, and the airspace over the Arctic will be fully recovered by 2045 and the airspace over Antarctica by 2066.
The report assessed that the “Montreal Protocol”, signed in the 1980s with the awareness of the destruction of the ozone layer, has helped to significantly reduce and continuously improve the production of substances that deplete the ozone layer since its entry into force.
The Montreal Protocol is a United Nations international agreement to combat ozone depletion signed in Montreal, Canada, in 1987 and officially entered into force in January 1989. It includes the gradual reduction of the production of approximately 100 gaseous substances responsible of the destruction of the ozone layer, such as chlorofluorocarbons (CFCs) and halons, known as Freon gas.
“The successful phase-out of ozone-depleting chemicals sets a precedent for climate action,” said WMO Director-General Petteri Talas, showing what can be done.
“The Montreal Protocol has helped eliminate 99% of ozone-depleting chemicals since it came into effect in 1989,” said the Guardian.
The report’s lead author, NOAA scientist David Fahey, also argued that the global response to CFCs meant the Montreal Protocol should be considered “the most successful environmental treaty in history.”
As a result, AFP analyzed that although they have worked together to prevent damage to the ozone layer, they have failed to prevent carbon emissions to prevent global warming. The report also warned that “this could dramatically reverse the restoration of the ozone layer.”
Meanwhile, the ozone layer serves to prevent harmful radiation from entering the earth from space. Unfiltered radiation can lead to skin cancer, cataracts and crop failure.
Reporter Kim Hyeon-deok, Hankyung.com [email protected]
