Antarctica, where it’s so thin there’s an annual giant gaping hole in the layer, won’t be fully fixed until 2066, the report said.
. Our success in phasing out ozone-eating chemicals shows us what can and must be done – as a matter of urgency — to transition away from fossil fuels, reduce greenhouse gases and so limit temperature increase,” World Meteorological Organization Secretary-General Prof. Petteri Taalas said in a statement.
The two chief chemicals that munch away at ozone are in lower levels in the atmosphere, said Newman, chief Earth scientist at NASA’s Goddard Space Flight Center. Chlorine levels are down 11.5% since they peaked in 1993 and bromine, which is more efficient at eating ozone but is at lower levels in the air, dropped 14.5% since its 1999 peak, the report said.
“There has been a sea change in the way our society deals with ozone depleting substances,” said scientific panel co-chair David W. Fahey, director of the U.S. National Oceanic and Atmospheric Administration’s chemical sciences lab. Natural weather patterns in the Antarctic also affect ozone hole levels, which peak in the fall. And the past couple years, the This is “saving 2 million people every year from skin cancer,” United Nations Environment Programme Director Inger Andersen told The Associated Press earlier this year in an email.and was rising
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