The ozone hole over Antarctica got bigger this year, which is unusual
In this NASA false-color image, the blue and purple shows the hole in Earth's protective ozone layer over Antarctica on Oct. 5, 2022. It has generally been shrinking but grew to a moderately large size this year because of weather conditions. The Antarctic ozone hole last week peaked at a moderately large size for the third straight year — bigger than the size of North America — but experts say it’s still generally shrinking despite recent blips because of high altitude cold weather.
“The overall trend is improvement. It’s a little worse this year because it was a little colder this year,” said NASA Goddard Space Flight Center Chief Earth Scientist Paul Newman, who tracks ozone depletion. “All the data says that ozone is on the mend.” “Ozone depletion starts LATER and takes LONGER to get to the maximum hole and the holes are typically shallower” in September, which is the key month to look at ozone recovery, not October, Solomon said Thursday in an email.
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