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.
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Posted inNews
Iodine-Laden Desert Dust Is Eating at Ozone Pollution
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.
Posted inEditors' Vox
New Insights into Polar Stratospheric Clouds
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.
Posted inEditors' Vox
Removal of Ozone Air Pollution by Terrestrial Ecosystems
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.
Posted inResearch Spotlights
Tracking Tropospheric Ozone Since 1979
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.
Posted inNews
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 inEditors' Highlights
Retrieving Tropospheric Ozone from Ground-based Spectroscopy
A new technique can retrieve the profile of ozone from surface to tropopause by MAX-DOS ground-based measurements.
Posted inResearch Spotlights
The Upside to a “Bad” Ozone Precursor
In Sweden’s wet heathland, scientists see how a sensitive ecosystem adapts to rising global temperatures.
Posted inNews
Ozone Pollution Maps Show Spikes Amid Broad Declines
Exceptionally comprehensive new maps detail current global concentrations and 15-year trends.
Posted inResearch Spotlights
Including Ozone Complexities in Climate Change Projections
A simplified view of ozone chemistry can cause climate models to overestimate the response of jet streams to increasing greenhouse gases.