this post was submitted on 28 Sep 2025
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Climate - truthful information about climate, related activism and politics.

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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:

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[–] Geodad@lemmy.world -2 points 2 days ago (4 children)

I'm fairly certain that human population has gone beyond what the earth can sustain.

[–] quick_snail@feddit.nl 3 points 1 day ago (2 children)

That's only true when people eat meat. The capacity increases about 90% higher if everyone were vegan.

[–] Geodad@lemmy.world 0 points 19 hours ago

Good luck trying to get Americans to give up their meat.

[–] remon@ani.social 0 points 1 day ago* (last edited 1 day ago)

So you're telling me I could live in a world without meat but almost 10 times more people? Why would anyone want that?

I have to buy more steaks.

[–] ProdigalFrog@slrpnk.net 23 points 2 days ago* (last edited 2 days ago)

It'd be able to pretty easily sustain the current population with more sustainable lifestyles and renewable infrastructure in the most polluting countries.

Industrial meat, consumerism, and fossil fuel use are all driven by capitalism. If we get rid of that and work on addressing those problems, we'd be chill.

[–] azolus@slrpnk.net 20 points 2 days ago (1 children)

This factually incorrect. Earth can sustain the current population easily - just not with our current death-spiral of capitalism.

It's also one of the core eco-fascist talking points.

[–] Geodad@lemmy.world 4 points 2 days ago (2 children)

Where are the actual numbers on this?

[–] azolus@slrpnk.net 4 points 1 day ago (1 children)
[–] Geodad@lemmy.world 3 points 1 day ago (1 children)

Interesting. I'm pessimistic about anything that conservative being implemented in the US. Too many of the conservatives in this country have the "rugged individual" myth engrained. I'm sure there are a few who actually have the skills to survive like that, but they overwhelmingly vote like they can.

[–] azolus@slrpnk.net 4 points 1 day ago

It's conservative only in that it "conserves our ability to live on this planet". The measures described in the paper can only reasonably be implemented under a socialist government that has taken full control over economic development. Capital C Conservatism as a political ideology, however, seeks to conserve existing societal hierarchies, hierarchies such as capitalism which, ironically, is expressly running us towards civilisational collapse due to climate change.

[–] princessnorah@lemmy.blahaj.zone 4 points 2 days ago (1 children)
[–] Geodad@lemmy.world 4 points 1 day ago (1 children)

On the carrying capacity of the planet.

[–] princessnorah@lemmy.blahaj.zone 7 points 1 day ago (1 children)

Okay but what exactly do you want to know? There isn't one single gotcha study that would answer this. There's plenty of studies that show things like food wastage, or land wastage to feed the meat industry. There's articles on crops that waste excess water, like almonds, or technology that does the same, like AI. You then have to use critical thinking skills to put all that together and determine that maybe capitalism is the main issue and not overpopulation.

[–] Geodad@lemmy.world 0 points 1 day ago

Give me everything you've got!

I drank from a water hose as a kid, and I love to drink straight from the hose of knowledge.