New research from NASA scientists shows that the amount of chlorine in the stratosphere over the South Pole is declining at the same time that ozone holes are becoming less severe.
Published Feb 13, 2018
The same international agreement that successfully put the ozone layer on the road to recovery is now being used to address climate change.
Published Oct 27, 2016
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 growth of the ozone hole appears to have stopped thanks to the banning of most ozone-depleting chemicals.
Published Sep 17, 2014
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
In 1979, Antarctic ozone levels dropped below 200 Dobson Units for the first time on record. This threshold became the standard for defining the ozone hole. In 2008, minimum ozone levels dropped to 100 Dobson Units on October 4.
Published Jun 2, 2009
Ozone depletion was significantly worse than in 2019, but better than in the early 2000s.
Published Nov 2, 2020
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
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