this post was submitted on 02 Jul 2025
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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.

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The ‘Great Dying’ wiped out 90% of life, then came 5 million years of lethal heat. New fossils explain why (www.cnn.com)
submitted 4 days ago by silence7@slrpnk.net to c/climate@slrpnk.net
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The paper is here

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[–] limer@lemmy.dbzer0.com 24 points 4 days ago (2 children)

That is bad news not only for us, but any possible descendants of our human race

[–] captainastronaut@seattlelunarsociety.org 11 points 3 days ago (1 children)

For the other species’ sake let’s hope there aren’t any descendants. We had our chance and we blew it, hard.

[–] AHemlocksLie@lemmy.zip 6 points 3 days ago (2 children)

I dunno, if we make it, I could see this being something of a turning point for us. Will we be perfect? Oh god no. But surviving will necessitate taking ownership of the mess we've collectively made (even if a lot of it is done by business), cleaning it up, and learning how to avoid doing it again.

[–] piccolo@sh.itjust.works 9 points 3 days ago (2 children)

Yeah humans are great at learning from their mistakes and would never ever repeat the same mistakes over and over and over.

[–] prettybunnys@sh.itjust.works 4 points 3 days ago (1 children)

No of course not, we’ll make new cleverer mistakes that rhyme with the old ones and might even be the exact same ones just differently packaged…. But not like the SAME SAME ones

[–] azolus@slrpnk.net 1 points 3 days ago (1 children)

Like fascism?

[–] Noodle07@lemmy.world 2 points 2 hours ago

Especially fascism

[–] Kolanaki@pawb.social 3 points 3 days ago

they say as America repeats the actions of Germany leading up to WW2

[–] captainastronaut@seattlelunarsociety.org 3 points 3 days ago

I appreciate your optimism and I have days where I share it. I do think humanity had the potential for a Star Trek future. But we might be a couple world wars away from it

[–] LovableSidekick@lemmy.world 4 points 3 days ago

If it happens like the Great Dying it will affect our distant descendants - nobody knows exactly how long the onset took, but the general estimate is between 8,000 and 100,000 years. Not a reason to put off doing anything about it, it just means a lot of other things will happen first.