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Articles on Montreal protocol

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NASA via Getty Images

The ozone hole above Antarctica will keep opening up each spring for decades to come – here’s why that still matters

More frequent wildfires, emissions from rocket launches and more satellite debris burning up in the atmosphere all contribute to ozone depletion and could slow the recovery of the ozone layer.
The potent greenhouse gas HFC-23 is emitted from the industrial production of fluoroplastics and specific refrigerants. Quality Stock Arts/Shutterstock

Chemical industry failing to stop emissions of super-strong greenhouse gas HFC-23 – new research

Factories producing non-stick coatings for cookware aren’t properly limiting emissions of one of the most potent greenhouse gases, our research suggests.
Concentration of ozone (in Dobson units) as of mid-September 2022, based on measurements by the IASI infrared sounder over 15 years above Antarctica. The extent of damage and geographical distribution of the hole (in blue) varies according to weather conditions. Anne Boynard/LATMOS

How science saved the ozone layer

In 1987, the Montreal Protocol established a ban on substances responsible for destroying the ozone layer, which is essential for protection against the sun’s rays.
People buy produce at a wholesale market in Nakuru, Kenya, on Dec. 24, 2022. James Wakibia/SOPA Images/LightRocket via Getty Images

Installing solar-powered refrigerators in developing countries is an effective way to reduce hunger and slow climate change

Many developing nations have little cold storage and lose much of their perishable food before it gets to markets. Climate-friendly refrigeration can provide huge environmental and social benefits.
Molina speaking about climate change at the Guadalajara International Book Fair in Mexico, Nov. 2018. Leonardo Alvarez/Getty Images

Remembering Mario Molina, Nobel Prize-winning chemist who pushed Mexico on clean energy – and, recently, face masks

Molina, who died on Oct. 8, ‘thought climate change was the biggest problem in the world long before most people did.’ His research on man-made depletion of the ozone layer won the 1995 Nobel Prize.
Temperatures are warming faster in the Arctic than anywhere else in the world. Water and sewer pipes in Iqaluit, Nunavut, are cracking during the winter as the ground shifts. THE CANADIAN PRESS/Sean Kilpatrick

The unexpected link between the ozone hole and Arctic warming

New research finds that chlorofluorocarbons (CFCs) and other ozone-depleting substances have boosted the effects of climate change in the Arctic.
Sunset at Australia’s Cape Grim observatory, one of the key global background monitoring sites for CFC-11. Paul Krummel/CSIRO

Eastern China pinpointed as source of rogue ozone-depleting emissions

For several years, emissions of CFCs have been rising, in apparent defiance of a global ban in place since 2010. A new global detective effort has traced the source to two eastern Chinese provinces.

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