this post was submitted on 01 Aug 2025
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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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The Invisible Climate Change Effect That Is Most Likely to Kill You (newrepublic.com)
submitted 1 week ago by Midnight@slrpnk.net to c/climate@slrpnk.net
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Air quality

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[–] silence7@slrpnk.net 2 points 5 days ago

There are two effects here:

  1. Some pollutants increase simply because higher temperatures cause the reactions which form them to run faster
  2. Getting rid of combustion prevents the emission of pollutants which don't have a meaningful climate impact in addition to preventing the emission of CO2, which does. This is a co-benefit of electrification, and doing something like moving to e-fuels would mean seeing the same problems for human health.

I wish the article did a better job of explaining this, which is why I didn't post it when first published.