this post was submitted on 20 Oct 2023
397 points (97.6% liked)

World News

39004 readers
2622 users here now

A community for discussing events around the World

Rules:

Similarly, if you see posts along these lines, do not engage. Report them, block them, and live a happier life than they do. We see too many slapfights that boil down to "Mom! He's bugging me!" and "I'm not touching you!" Going forward, slapfights will result in removed comments and temp bans to cool off.

We ask that the users report any comment or post that violate the rules, to use critical thinking when reading, posting or commenting. Users that post off-topic spam, advocate violence, have multiple comments or posts removed, weaponize reports or violate the code of conduct will be banned.

All posts and comments will be reviewed on a case-by-case basis. This means that some content that violates the rules may be allowed, while other content that does not violate the rules may be removed. The moderators retain the right to remove any content and ban users.


Lemmy World Partners

News !news@lemmy.world

Politics !politics@lemmy.world

World Politics !globalpolitics@lemmy.world


Recommendations

For Firefox users, there is media bias / propaganda / fact check plugin.

https://addons.mozilla.org/en-US/firefox/addon/media-bias-fact-check/

founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[–] macarthur_park@lemmy.world 27 points 1 year ago (3 children)

Lots of doom and gloom in the comments here. As the article describes, the hole in the ozone layer varies in size over time. It is slowly recovering, but the annual variability means it sometimes is larger than before.

The variability of the size of the ozone hole is largely determined by the strength of a strong wind band that flows around the Antarctic area. This strong wind band is a direct consequence of Earth's rotation and the strong temperature differences between polar and moderate latitudes.

If the band of wind is strong, it acts like a barrier: air masses between polar and temperate latitudes can no longer be exchanged. The air masses then remain isolated over the polar latitudes and cool down during the winter.

Although it may be too early to discuss the reasons behind the current ozone concentrations, some researchers speculate that this year’s unusual ozone patterns could be associated with the eruption of the Hunga Tonga-Hunga Ha'apai in January 2022.

And

Claus concludes, “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.”

[–] NOT_RICK@lemmy.world 3 points 1 year ago (1 children)

If only all the other ways we’re trashing this planet were as easy to solve as it was to simply ban CFCs

[–] Honytawk@lemmy.zip 6 points 1 year ago (1 children)

They aren't that difficult either, it just will have a bigger impact because we have been relying on them for longer.

Banning oil and single-use plastics would go a long way.

[–] NOT_RICK@lemmy.world 4 points 1 year ago

Yeah, but I’m wondering what can replace rubber tires. I was just reading about how they’re a massive source of microplastics and other pollutants in the environment

[–] Spzi@lemm.ee 1 points 1 year ago

This strong wind band is a direct consequence of Earth's rotation and the strong temperature differences between polar and moderate latitudes.

Sounds like something global warming can make worse.

Isn't the northern hemisphere jet stream struggling due to decreasing temperature differences, since the poles are warming faster? Which then causes weather to change less, making things more extreme?

[–] Desistance@lemmy.world 0 points 1 year ago* (last edited 1 year ago) (1 children)

The hole was set to be normal by now.