this post was submitted on 21 Aug 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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[–] theacharnian@lemmy.ca 8 points 9 months ago (1 children)

Does anyone remember the "but what about China" retort by denialists any time we asked for fossil fuel reduction?

[–] leftytighty@slrpnk.net 2 points 9 months ago

they still do this, by insisting on looking at total instead of per capita data

[–] sexy_peach@feddit.org 8 points 9 months ago

That's insane, kudos to them

[–] avidamoeba@lemmy.ca 1 points 9 months ago* (last edited 9 months ago) (2 children)

I understand the importance of this achievement, but I have to ask - at what cost?

E: /s

[–] silence7@slrpnk.net 7 points 9 months ago (1 children)

A pretty modest one actually. Its more expensive and damaging to burn coal than to install solar.

[–] avidamoeba@lemmy.ca 0 points 9 months ago* (last edited 9 months ago)
[–] Skua@kbin.earth 2 points 9 months ago (1 children)

What kind of cost are you expecting?

[–] avidamoeba@lemmy.ca 5 points 9 months ago (1 children)

It's a sarcastic statement meant to lampoon China-bad rhetoric which typically contrasts any positive Chinese achievement with the phrase "but at what cost," followed by unrelated allegations about human rights violations.

[–] Skua@kbin.earth 1 points 9 months ago (1 children)

Ahh, I just missed the sarcasm

[–] avidamoeba@lemmy.ca 2 points 9 months ago

Not your fault. It's always a gamble. 😄

[–] badbytes@lemmy.world -2 points 9 months ago (2 children)

China installs solar farms without cables attached to make such claims in the recent past.

[–] umbrella@lemmy.ml 4 points 9 months ago (1 children)

genius, because why would they bother doing and paying for all the work, and then just not bothering plugging it in?

[–] leftytighty@slrpnk.net 1 points 9 months ago

that's China for ya (I don't think critically about the information that's presented to me)

[–] leftytighty@slrpnk.net -1 points 9 months ago

ah yes journalists and scientists but it seems you forgot the most important axiom of all: CHINA. BAD