chlorofluorocarbons – News, Research and Analysis – The Conversation

Modern air conditioners contain hydrofluorocarbons (HFCs), which emit ozone-depleting chemicals during production. Ken Welsh/Alamy Stock Photo

April 3, 2023

Countries agreed to ban ozone-depleting chemicals in the 1980s – but we found five CFCs increasing to record levels in the atmosphere

Luke Western, University of Bristol and Johannes Laube, University of East Anglia

Chlorofluorocarbons (CFCs) are also potent greenhouse gases which contribute to climate change.

August 18, 2021

Repairing ozone layer is also reducing CO₂ in the atmosphere – new study

Paul Young, Lancaster University

New research shows how the Montreal Protocol protected vegetation, helping keep carbon out of the atmosphere.

A crowd observes the world’s first Earth Day on April 23, 1970, in Fairmount Park in Philadelphia. (AP Photo)

April 19, 2020

Earth Day at 50: A look to the past offers hope for the planet’s future

Philippe Tortell, University of British Columbia

When the current crisis passes, we must seize the opportunity to re-imagine, and to create, a different kind of future.

Sunset at Australia’s Cape Grim observatory, one of the key global background monitoring sites for CFC-11. Paul Krummel/CSIRO

May 22, 2019

Eastern China pinpointed as source of rogue ozone-depleting emissions

Paul Krummel, CSIRO; Bronwyn Dunse, CSIRO; Nada Derek, CSIRO; Paul Fraser, CSIRO, and Paul Steele, CSIRO

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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