Antarctic Ozone Hole Shrinks to Fifth Smallest in Over 30 Years
• The Antarctic ozone hole is the fifth smallest since 1992, thanks to efforts to reduce ozone-depleting substances.
• The Montreal Protocol, effective since 1992, is key to the ozone layer's gradual recovery.
• NASA and NOAA monitoring confirm the ozone hole's reduction, but full recovery is expected mid-21st century.
Antarctic ozone hole shrinks significantly since 1992
According to a recent study by NOAA and NASA scientists, the ozone hole over Antarctica has shrunk to its fifth-smallest size since 1992. In early September of this year, the ozone hole's maximum extent was recorded at 8.83 million square miles, roughly 30% less than the largest hole ever recorded in 2006.
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