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Articles on Ozone layer

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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.
Cape Town residents queueing to refill water containers at the Newlands Brewery Spring Water Point in January 2018. GettyImages

Dimming the sun could reduce future drought risk in Cape Town – but there’s a catch

Artificially dimming the sun, by injecting reflective particles into the upper atmosphere, could reduce the risk of Day Zero level droughts in Cape Town by more than 90% in the future.
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.
False-color image of ozone concentrations above Antarctica on Oct. 2, 2015. NASA/Goddard Space Flight Center

Is Earth’s ozone layer still at risk? 5 questions answered

Earth’s ozone layer shields us from harmful ultraviolet radiation. Nations have been working to reduce ozone-depleting chemicals since the 1980s, but recent studies show that there is still work to do.

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