Articles on CFCs

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Clouds over Australia’s Davis Research Station, containing ice particles that activate ozone-depleting chemicals, triggering the annual ozone hole. Barry Becker/BOM/AAD

After 30 years of the Montreal Protocol, the ozone layer is gradually healing

The treaty to limit the destruction of the ozone layer is hailed as the most successful environmental agreement of all time. Three decades on, the ozone layer is slowly but surely returning to health.
People gather outside the White House in Washington, D.C. on Thursday, June 1, 2017, to protest President Donald Trump’s decision to withdraw the United States from the Paris climate change accord. AP Photo/Susan Walsh

Why is climate change such a hard sell in the US?

While many people are willing to happily gamble with pharmaceuticals, which may offer the most trivial of benefits, they are not ready to believe the facts on climate change.
A wide range of industrial processes have released greenhouse gases into the atmosphere. Paulo Resende/Shutterstock.com

Global stocktake shows the 43 greenhouse gases driving global warming

While the gases most responsible for global warming - carbon dioxide, methane and nitrous oxide - continue to climb, other industrial greenhouse gases are being brought gradually under control.
Conventional wisdom says Barack Obama will hit political obstacles on the way to fulfilling his climate ambitions. But they might be easier to sidestep than you think, EPA/Michael Reynolds/AAP

Forget the hostile Congress – Obama can cut global climate deals on his own terms

Much has been made of the domestic political roadblocks between US President Barack Obama and climate action. But by using existing treaties he can get around the hostile Congress and help cut global emissions.
Antarctica’s ozone hole has just got four new sources. PD-USGOV-NASA

Earth’s ozone layer threatened by new man-made gases

Scientists at the University of East Anglia have discovered new man-made gases that are contributing to the depletion of the Earth’s ozone layer. Three new Chlorofluorocarbons (CFCs), which act to destroy…

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