Warm Winter Air Makes for a Small Ozone Hole
This year's ozone hole was 1 million miles smaller than in 2016, the smallest it’s been in 19 years. On Sept. 11 the ozone hole reached its peak extent, covering an area about two and a half times the size of the United States and then declined through the remainder of September and into October. Find out why: http://go.nasa.gov/2iXOs3j
Posted by NASA – National Aeronautics and Space Administration on Thursday, November 2, 2017
