People are becoming more aware of the health risks of laughing gas, but fewer people realise it’s a potent greenhouse gas.
Modern air conditioners contain hydrofluorocarbons (HFCs), which emit ozone-depleting chemicals during production.
Ken Welsh/Alamy Stock Photo
Chlorofluorocarbons (CFCs) are also potent greenhouse gases which contribute to climate change.
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
Rocket emissions in the upper atmosphere can damage the ozone layer but are neither measured nor regulated. It’s a policy gap we have to close if the space industry is to grow sustainably.
Air conditioners are one source of leaking HFCs.
Bruce Yuanyue Bi/The Image Bank via Getty Images
The US Senate voted to ratify the Kigali Amendment, agreeing on a bipartisan vote to phase down climate-warming HFCs. Now what?
SpaceX is seeking to expand its remit to include commercial low-Earth orbit launches.
Expanding the low-Earth orbit economy through increased commercial spaceflight will only push our planet further into its climate crisis.
New research shows how the Montreal Protocol protected vegetation, helping keep carbon out of the atmosphere.
HFCs keep refrigerators cool, but their leaks are warming the planet.
Jed Share/Kaoru Share via Getty Images
HFCs keep refrigerators cool, but when these short-lived climate pollutants leak, they warm the planet.
Earth’s magnetic field protects us from the solar wind, guiding the solar particles to the polar regions.
SOHO (ESA & NASA)
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.
vchal / shutterstock
Scientists have uncovered evidence of a global paleopocalyspe.
Cape Town residents queueing to refill water containers at the Newlands Brewery Spring Water Point in January 2018.
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
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.
New research on the Late Devonian extinction suggests the ozone layer could be naturally depleted as the temperature rises.
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
New research finds that chlorofluorocarbons (CFCs) and other ozone-depleting substances have boosted the effects of climate change in the Arctic.
Lush moss beds in East Antarctica’s Windmill Islands.
Mosses are the only plants that can withstand life in East Antarctica’s frozen landscape. But a new study shows that life is getting even harder, as ozone loss and climate change make conditions even drier.
Researchers release a balloon carrying instruments to measure ozone levels above Antarctica.
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.
False-color image of ozone concentrations above Antarctica on Oct. 2, 2015.
NASA/Goddard Space Flight Center
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.
Suspected infestation of Macrophomina phaseolina, a “novel” soil pathogen, in the non-fumigated buffer zone of a strawberry field.
California produces 90 percent of the US strawberry crop, but growers face curbs on toxic chemicals that have helped their industry expand. Can a system centered on mass production become more sustainable?
Sunrise over the Earth. Hydrofluorocarbons were created to protect the ozone layer, but their stable nature makes them an extremely potent greenhouse gas.
Australia has ratified an agreement to phase out hydrofluorocarbons, a manmade compound once hailed as the saviour of the ozone layer. What went wrong?
Clouds over Australia’s Davis Research Station, containing ice particles that activate ozone-depleting chemicals, triggering the annual ozone hole.
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.