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Saving ozone layer reduced climate change effects

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Saving ozone layer reduced climate change effects

Saving ozone layer reduced climate change effects

A new study from the University of New South Wales has found that in addition to allowing the ozone layer to recover, the Montreal Protocol has also slowed the rate of climate change by up to 25 percent.

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Saving ozone layer reduced climate change effects

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RESTRICTIONS: Broadcast: NO USE JAPAN, NO USE TAIWAN Digital: NO USE JAPAN, NO USE TAIWAN A new study from the University of New South Wales has found that in addition to allowing the ozone layer to recover, the Montreal Protocol has also slowed the rate of climate change by up to 25 percent.

The Montreal Protocol is an international agreement signed by countries around the world in 1987 to stop the import and production of chemicals such as chlorofluorocarbons that are harmful to the earth's ozone layer, after an "ozone hole" was found over Antarctica.

Using an estimated 3 percent increase of CFC emissions per year starting from 1987, scientists estimate the Montreal Protocol has likely already helped our planet avoid 0.5 degrees Celsius to 1 degree Celsius of temperature rise over some land areas and 3 degrees Celsius to 4 degrees Celsius of temperature rise across much of the Arctic, as of 2019.

The study, published in the journal Environmental Research Letters, estimates that our planet will be at least 1 degree Celsius cooler by 2050 than it would have been had the agreement not been enacted.

RUNDOWN SHOWS: 1.

How the Montreal Protocol has helped to reduce the effects of climate change 2.

How much temperatures are estimated to have risen if the Montreal Protocol was not enacted 3.

Earth is estimated to be at least 1°C cooler by 2050 than it would have been 4.

Arctic sea ice extent is higher than it would have been 5.

Greenland's melting ice sheet and subsequent sea level rise is also happening at a slower pace VOICEOVER (in English): "A new study from the University of New South Wales has found that in addition to allowing the ozone layer to recover, the Montreal Protocol has also slowed the rate of climate change by up to 25 percent." "The Montreal Protocol is an international agreement signed by countries around the world in 1987 to stop the import and production of chemicals such as chlorofluorocarbons that are harmful to the earth's ozone layer, after an 'ozone hole' was found over Antarctica." "The ozone layer protects our planet by deflecting harmful radiation from the sun." "Researchers tested out two different scenarios: one in which the Montreal Protocol was brought into effect and another in which the agreement wasn't." "Using an estimated 3 percent increase of CFC emissions per year starting from 1987, scientists estimate the Montreal Protocol has likely already helped our planet avoid 0.5 degrees Celsius to 1 degree Celsius of temperature rise over some land areas and 3 degrees Celsius to 4 degrees Celsius of temperature rise across much of the Arctic, as of 2019." "The study, published in the journal Environmental Research Letters, estimates that our planet will be at least 1 degree Celsius cooler by 2050 than it would have been had the agreement not been enacted." "Researchers also found that the Arctic summer sea ice extent is roughly 25 percent higher today than it would have been otherwise." "The study also suggests that Greenland's melting ice sheet and subsequent sea level rise is happening at a slower speed." SOURCES: Environmental Research Letters, ARC Center of Excellence, University of New South Wales, Australian Government Department of the Environment and Energy, National Geographic https://iopscience.iop.org/article/10.1088/1748-9326/ab4874 https://climateextremes.org.au/montreal-protocol-set-to-slow-global-warming-by-at-least-1c/ https://newsroom.unsw.edu.au/news/science-tech/saving-ozone-layer-1987-slowed-global-warming https://www.environment.gov.au/protection/ozone/montreal-protocol https://www.nationalgeographic.org/encyclopedia/ozone-layer/ *** For story suggestions please contact [email protected] For technical and editorial support, please contact: Asia: +61 2 93 73 1841 Europe: +44 20 7542 7599 Americas and Latam: +1 800 738 8377




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