Significant ozone hole remains over Antarctica
Thursday, October 20, 2011 - 14:30
in Earth & Climate
The Antarctic ozone hole, which yawns wide every Southern Hemisphere spring, reached its annual peak on Sept. 12, stretching 10.05 million square miles, the ninth largest on record. Above the South Pole, the ozone hole reached its deepest point of the season on Oct. 9 when total ozone readings dropped to 102 Dobson units, tied for the 10th lowest in the 26-year record.