You heard a lot about the hole in the ozone layer back in the 1970s and ‘80s, but not m... ...he authors used “fingerprints” of the ozone changes with season and altitude to attribute the... ...changes with season and altitude to attribute the ozone ’s...
https://www.neatorama.com/2016/07/03/The-Hole-in-the-Ozone-Shows-Signs-of-Healing/
The Hole in the Ozone Shows Signs of Healing
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