this post was submitted on 16 Jul 2026
450 points (100.0% liked)

Climate

8858 readers
733 users here now

Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.

As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades: Graph of temperature as observed with significant warming, and simulated without added greenhouse gases and other anthropogentic changes, which shows no significant warming

How much each change to the atmosphere has warmed the world: IPCC AR6 Figure 2 - Thee bar charts: first chart: how much each gas has warmed the world.  About 1C of total warming.  Second chart:  about 1.5C of total warming from well-mixed greenhouse gases, offset by 0.4C of cooling from aerosols and negligible influence from changes to solar output, volcanoes, and internal variability.  Third chart: about 1.25C of warming from CO2, 0.5C from methane, and a bunch more in small quantities from other gases.  About 0.5C of cooling with large error bars from SO2.

Recommended actions to cut greenhouse gas emissions in the near future:

Anti-science, inactivism, and unsupported conspiracy theories are not ok here.

founded 3 years ago
MODERATORS
 

Screenshot taken from PurpleAir. 150 and above is considered unhealthy, 300 and above is considered hazardous.

https://map.purpleair.com/air-quality-standards-us-epa-aqi

(page 2) 44 comments
sorted by: hot top controversial new old
[–] Dvixen@lemmy.world 5 points 1 week ago

Oof. That's horrendous. Hoping for a steady nó lightning few days to assist.

We had days of 999 (where the scale stopped) during the Australian bushfires in 2019, and anything over 150 was already brutal. Above 300 and you feel like you can chew the air.

[–] CptOblivius@lemmy.world 5 points 1 week ago

Last year our area hit 800+. It was surreal. Apocalyptic looking skies.

[–] Glifted@lemmy.world 5 points 1 week ago

I live at 590

[–] razen@lemmy.world 4 points 1 week ago (2 children)

What is happening? Arent there air usually very clean?

load more comments (2 replies)
[–] Nangijala@feddit.dk 3 points 1 week ago (1 children)

Bro, wtf.. that's gotta be a typo.

[–] borari@lemmy.dbzer0.com 4 points 1 week ago (1 children)

That’s probably the source of the wildfires. I wouldn’t be surprised if the ppm is that high in the middle of a massive forest fire.

[–] Nangijala@feddit.dk 2 points 1 week ago

Hope nobody lives around there, then, because yikes. 8O

[–] Etterra@discuss.online 3 points 1 week ago

I went outside yesterday, and suddenly was breathing in burnt Canada. It smelled like burnt plastic TBH, and the sky looked like it was colored movie Mexico. Reminds me of a few years ago when the same thing happened. I hope nobody's died.

[–] peteypete420@sh.itjust.works 1 points 1 week ago (1 children)

Definitely isnt a state between Ohio and New Jersey

[–] Dozzi92@lemmy.world 1 points 1 week ago* (last edited 1 week ago) (1 children)

I've always said New York City and Philadelphia ought to belong to New Jersey, and this map seems to have taken my advice.

[–] peteypete420@sh.itjust.works 2 points 1 week ago (1 children)

Thank makes zero sense to me, but it did make me giggle.

[–] Dozzi92@lemmy.world 1 points 1 week ago (1 children)

I say it jokingly, but Upstate NY and Pennsyltucky have less in common with their big cities than New Jersey does. So it's half joking, but 100% serious.

[–] peteypete420@sh.itjust.works 1 points 1 week ago

Pennsyltucky! I love seeing that term in the wild. But yea I get you.

[–] Tronn4@lemmy.world 0 points 1 week ago

Like someone took a liberal knife and sliced it up

load more comments
view more: ‹ prev next ›