Toxic particulate matter has decreased by about a third over the past decade, but levels are still above what’s considered healthy.
New research confirms that ozone loss over the Arctic can lead to widespread warming near the Artic surface during late winter and early spring.
Adolescents exposed to higher levels of ozone experienced an increase in depressive symptoms.
New research shows that the Black Summer bushfires damaged the ozone layer, eliminating a decade’s worth of progress.
A decrease in emissions of ozone precursor gases during the COVID-19 economic downturn likely explains the unusual reduction in ozone concentrations observed during the spring and summer of 2020.
In a happy accident, scientists found a potential solution to an atmospheric chemistry mystery. Their findings could be a missing piece in the iodine cycle and in atmospheric models.
New satellite observations of polar stratospheric clouds have advanced our understanding of how, when, and where they form, their composition, and their role in ozone depletion.
Tropospheric ozone is removed at Earth’s surface through uptake by plant stomata and other nonstomatal deposition pathways, with impacts on air pollution, ecosystem health, and climate.
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.
A new study indicates that better atmospheric monitoring networks are needed to enforce the Montreal Protocol.