<
https://earthobservatory.nasa.gov/images/153523/ozone-hole-continues-healing-in-2024>
"A hole that opens annually in the ozone layer over Earth’s southern pole was
relatively small in 2024 compared to other years. Scientists with NASA and the
National Oceanic and Atmospheric Administration (NOAA) project the ozone layer
could fully recover by 2066.
During the peak of ozone depletion season from September 7 through October 13,
the 2024 area of the ozone hole ranked the seventh smallest since recovery
began in 1992, when the Montreal Protocol, a landmark international agreement
to phase out ozone-depleting chemicals, began to take effect.
At almost 20 million square kilometers (8 million square miles), the monthly
average ozone-depleted region in the Antarctic this year was nearly three times
the size of the contiguous U.S. The hole reached its greatest one-day extent
for the year on September 28 at 22.4 million square kilometers (8.5 million
square miles).
The map above shows the size and shape of the ozone hole over the South Pole on
the day of its 2024 maximum extent. Moderate ozone losses (orange) are visible
amid areas of more potent ozone losses (red). Scientists describe the ozone
“hole” as the area in which ozone concentrations drop below the historical
threshold of 220 Dobson units.
The improvement is due to a combination of continuing declines in harmful
chlorofluorocarbon (CFC) chemicals, along with an unexpected infusion of ozone
carried by air currents from north of the Antarctic, scientists said."
Via
Fix the News:
https://fixthenews.com/276-nauseously-optimistic/
Cheers,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
