this post was submitted on 18 Sep 2025
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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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[–] captainastronaut@seattlelunarsociety.org 6 points 5 months ago (4 children)

You know they had an old-timey name for it better than “chimney sweep testicle”

[–] Zachariah@lemmy.world 5 points 5 months ago* (last edited 5 months ago)

lumps of coal

naughty little boys

chimney something… idk, that’s all I got

[–] apenstaartje@lemmy.cafe 4 points 5 months ago (1 children)
[–] quick_snail@feddit.nl 2 points 5 months ago* (last edited 5 months ago)

Chim Chimy-nut
Chim Chimy-nut
Chim-Chim Chim-nut

[–] witheyeandclaw 0 points 5 months ago

I believe that's when they coined the term cancer because the growths on chimney sweeps' testicles looked like a crab.