Ozone hole – News, Research and Analysis – The Conversation

March 8, 2023

Bushfire smoke eats up the ozone protecting us from dangerous radiation. The damage will increase as the world heats up

Ian Rae, The University of Melbourne

Over 30 years ago, the world banned CFC chemicals to save the ozone layer. But now, climate-fuelled bushfire smoke is putting it at renewed risk

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.

Earth’s magnetic field protects us from the solar wind, guiding the solar particles to the polar regions. SOHO (ESA & NASA)

March 23, 2021

Climate explained: how particles ejected from the Sun affect Earth’s climate

Annika Seppälä, University of Otago

When solar particles reach the Earth, they not only produce spectacular auroras but also contribute to the chemical reactions leading to ozone depletion, which in turn influences climate patterns.

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

February 17, 2020

The unexpected link between the ozone hole and Arctic warming

Karen Smith, University of Toronto

New research finds that chlorofluorocarbons (CFCs) and other ozone-depleting substances have boosted the effects of climate change in the Arctic.

Sustainable farming can reduce nitrous oxide emissions. eutrophication&hypoxia/Flickr

November 18, 2019

Nitrogen fertilisers are incredibly efficient, but they make climate change a lot worse

Pep Canadell, CSIRO; Hanqin Tian, Auburn University; Prabir Patra, and Rona Thompson, Norwegian Institute for Air Research

Measurements and modelling have found nitrous oxide emissions, a greenhouse gas 265 times more potent than carbon dioxide, are significantly higher than previously reported.

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.

Pollution in Shandong province, source of much of the ozone-depleting gas. Wu Hong / EPA

May 22, 2019

How we traced ‘mystery emissions’ of CFCs back to eastern China

Matt Rigby, University of Bristol; Luke Western, University of Bristol, and Steve Montzka, University of Colorado Boulder

Global CFC-11 levels were rising and no one knew why. Scientists turned detective to pinpoint the source.

Researchers release a balloon carrying instruments to measure ozone levels above Antarctica. Kelli-Ann Bliss/NOAA

July 29, 2018

The ozone hole is both an environmental success story and an enduring global threat

Shane Keating, UNSW Sydney and Darryn Waugh, Johns Hopkins University

Almost 30 years ago the world responded to the realisation that our ozone layer was in trouble. The resulting Montreal Protocol was a rare example of global cooperation, but there’s no room for complacency.

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