this post was submitted on 06 Oct 2023
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Earth, Environment, and Geosciences

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[–] JackGreenEarth@lemm.ee 22 points 1 year ago (2 children)

I thought the ozone hole was supposed to be shrinking?

[–] Deceptichum@kbin.social 16 points 1 year ago

China.

We show that emissions from eastern mainland China are 7.0 ± 3.0 (±1 standard deviation) gigagrams per year higher in 2014–2017 than in 2008–2012, and that the increase in emissions arises primarily around the northeastern provinces of Shandong and Hebei. This increase accounts for a substantial fraction (at least 40 to 60 per cent) of the global rise in CFC-11 emissions. We find no evidence for a significant increase in CFC-11 emissions from any other eastern Asian countries or other regions of the world where there are available data for the detection of regional emissions.

https://www.nature.com/articles/s41586-019-1193-4

[–] The_Picard_Maneuver@startrek.website 8 points 1 year ago (1 children)
[–] GreenMario@lemm.ee 13 points 1 year ago* (last edited 1 year ago) (2 children)

I was told it was fixed. WTF?

Like the ozone thing was the last time humanity came together and fixed a problem instead saying it was a LiBrUl oZone hole.

[–] TheFriar@lemm.ee 10 points 1 year ago

Yeah, that’s what I heard too. And it was because of CFC’s and wasn’t related to climate change. Once CFCs were outlawed, I heard the hole in the ozone was fixing itself (and ultimately fixed).

[–] Mongostein@lemmy.ca 6 points 1 year ago

That was the hole above California. This hole is above Antarctica, apparently caused by emissions drifting from China.

[–] Fulthi@kbin.social 6 points 1 year ago

Wait I thought we fixed that ages ago?!

[–] autotldr@lemmings.world 3 points 1 year ago

This is the best summary I could come up with:


Observations from the European Space Agency's (ESA) Copernicus Sentinel-5P satellite indicate the ozone hole reached approximately 10 million square miles (26 million square kilometers) in area on Sept. 16, 2023 — making it one of the largest seasonal holes ever observed.

Ozone is a naturally occurring gas, and there's a layer of it in the stratosphere that protects us from the sun's ultraviolet, or UV, rays.

The ozone hole still grows and shrinks seasonally, however, due to temperature changes and wind conditions in the stratosphere, reaching a maximum between mid-September and mid-October.

One possible reason for the higher-than-normal growth is the Hunga Tonga volcanic eruption in January 2022, which introduced massive quantities of water vapor into the air.

“The water vapor could have led to the heightened formation of polar stratospheric clouds, where chlorofluorocarbons (CFCs) can react and accelerate ozone depletion," said Inness.

"Based on the Montreal Protocol and the decrease of anthropogenic ozone-depleting substances, scientists currently predict that the global ozone layer will reach its normal state again by around 2050," said Claus Zehner, ESA's mission manager for Copernicus Sentinel-5P.


The original article contains 340 words, the summary contains 180 words. Saved 47%. I'm a bot and I'm open source!

[–] HowShouldIKnow@lemm.ee 2 points 1 year ago

How many capybara is that?

[–] pewgar_kbin@fedia.io 1 points 1 year ago (1 children)

you're late by alot of years

[–] pewgar_kbin@fedia.io 1 points 1 year ago (2 children)
[–] Kbin_space_program@kbin.social 7 points 1 year ago (1 children)

We fixed it, but a certain 5 letter country has been caught repeatedly lying about not using CFCs, and levels of it have been increasing since 2012.

[–] JoMomma@lemm.ee 4 points 1 year ago* (last edited 1 year ago) (1 children)

Yeah... Fuck Benin, Chile, China, Congo, Egypt, Gabon, Ghana, Haiti, India, Iraq, Israel, Italy, Japan, Libya, Nepal, Niger, Palau, Qatar, Samoa, Spain, Sudan, Syria, and Yemen

[–] OurTragicUniverse@kbin.social 2 points 1 year ago

One of these is not like the others

[–] eya@lemmy.dbzer0.com 1 points 1 year ago

well we very clearly did not fix it