Hydroxyl radicals are critical for offsetting concentrations of methane in the air.
Published Dec 8, 2018
Rapid growth from 2008–2017 built upon the rise in the atmospheric concentration of the gas that has been happening for more than a century.
Published Jul 15, 2020
NASA satellites have observed the Antarctic ozone hole since the late 1970s—before and after nations agreed to stop producing chemicals that destroy the ozone layer.
Published Sep 18, 2012
Recent observations from satellites and ground stations suggest that atmospheric ozone levels for March in the Arctic were approaching the lowest levels in the modern instrumental era.
Published Mar 30, 2011
The growth of the ozone hole appears to have stopped thanks to the banning of most ozone-depleting chemicals.
Published Sep 17, 2014
The Ozone Monitoring Instrument (OMI) on NASA’s Aura satellite acquired data for this map of ozone concentrations over Antarctica on September 12, 2010.
Published Sep 16, 2010
The annual ozone hole over Antarctica reached its maximum area on September 12, 2011, and its maximum depth on October 9, 2011.
Published Oct 21, 2011
On September 12, 2008, the Antarctic ozone hole reached its maximum size for the year.
Published Oct 25, 2008
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