this post was submitted on 16 Jul 2026
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Climate

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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.

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Air quality across the Eastern US & Canada right now (slrpnk.net)
submitted 1 week ago by fireweed@lemmy.world to c/climate@slrpnk.net
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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

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[–] chronicledmonocle@lemmy.world 61 points 1 week ago (3 children)

I travelled up to Michigan to visit family and friends for a few weeks, as well as enjoy the lake. Can't go outside because the air is, according to the news, "the equivalent of smoking 17 cigarettes for every hour you're outside".

Shits fucked up here right now.

[–] Sasquatch@lemmy.ml 23 points 1 week ago (1 children)

Damn and you don't even get high what a ripoff

[–] MohamedMoney@feddit.org 3 points 1 week ago (3 children)

You get high from cigarettes?

[–] SeductiveTortoise@piefed.social 8 points 1 week ago

I do, and it's unpleasant as fuck. That's the main reason I never started smoking. That shit fucks me up, majorly.

[–] Buddahriffic@lemmy.world 4 points 1 week ago

There was a head rush that felt kinda neat at first. Guessing because nicotine binds to the ACE2 receptors, which play a role in ATP reuse (iirc), ATP being the big energy molecule that powers the current multicellular life, so it's similar to a bit of oxygen deprivation in that available ATP is reduced.

But then the body just expresses more ACE2 receptors to compensate, so you stop getting the head rushes. This happens fairly quickly, too, like you might get them for like half of your first pack of smokes before the "feels better after a smoke" is more about getting rid of nicotine withdrawal than any positive feelings (if you enjoy the altered feeling of a head rush).

[–] BeMoreCareful@lemmy.world 1 points 1 week ago

It's why we smoke them if we got them.

And the cigarette break is on of the few acceptable "gimme a minutes"

[–] SaveTheTuaHawk@lemmy.ca 4 points 1 week ago (1 children)

What's hilarious is watching people smoke cigarettes in this air.

[–] RickyRigatoni@piefed.zip 2 points 1 week ago

And then they complain about the other smoke.