this post was submitted on 20 Dec 2024
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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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[–] HubertManne@moist.catsweat.com 1 points 14 hours ago (1 children)

It being 2024 does this depress anyone as much as I.

[–] silence7 1 points 14 hours ago* (last edited 14 hours ago) (1 children)

This shouldn't be depressing; it means the cost advantage that renewables have is causing them to displace fossil fuel use, at least at a national level in the US. There's the potential for that to start happening globally over the next year.

[–] HubertManne@moist.catsweat.com 2 points 14 hours ago

yeah I just meant that coal is the worst and they had to combine two of the best to get it more and that was for only two months and we are a quarter way through the century. I mean it depresses me this did not happen a decade ago.