Stratospheric ozone depletion between 1979 and 2010 resulted in a slight decrease of ozone in the troposphere during that period despite increased ozone production from anthropogenic emissions.
chlorofluorocarbons (CFCs)
Posted inNews
Banned CFC Emissions Tracked to Eastern China
A new study indicates that better atmospheric monitoring networks are needed to enforce the Montreal Protocol.
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Podcast: Uncovering the Ozone Hole
In the latest episode of its special series, AGU’s Third Pod from the Sun features scientists whose work found the source of a hole in the sky.
Posted inResearch Spotlights
Tracing the North Atlantic's Bottom Waters
Chemicals released by two European nuclear fuel reprocessing plants, along with certain chlorofluorocarbons, are helping to constrain the speed and behavior of North Atlantic deep-ocean circulation.
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Antarctica's Ozone Hole Is Healing, Scientists Say
The ozone hole over Antarctica has shrunk by 16% since its peak in 2000, and some suspect it may disappear entirely by midcentury.
Posted inResearch Spotlights
Ozone Hole to Remain Large During Cold Years
Despite the Montreal Protocol's success, it will take years of observations to be sure that regulations are allowing the ozone hole to recover.