this post was submitted on 13 Mar 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:

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Archived copies of the article:

The papers are here and here. The first paper is paywalled, the second is open-access.

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[–] j_elgato@leminal.space 9 points 6 hours ago (1 children)

I mean.. I was a little more concerned about the collapse of the biosphere and the endgame of the Holocene Extinction taking out homo sapiens and all the other pre- sapient species as we fucking speed run the Permian-Triassic "Great Dying"

But yeah.

A millisecond per century.

[–] P00ptart@lemmy.world 1 points 5 hours ago

And then you heard about AI learning to develop self prevalence.

[–] skeezix@lemmy.world 8 points 11 hours ago (2 children)

1.3 milliseconds in a century doesn’t sound like a big deal.

[–] Widdershins@lemmy.world 3 points 5 hours ago

Are you gonna work that extra time for free?

[–] GreatBlueHeron@lemmy.ca 3 points 6 hours ago

Yeah, it seems to be measurable if they can put a number on it - which means it is technically significant. But it does seem to be least of our problems as a result of climate change.