this post was submitted on 09 Jan 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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2023 smashes record for world’s hottest year by huge margin | Rapid reduction in fossil fuel burning urgently needed to preserve liveable conditions, say scientists, as climate damage deepens (www.theguardian.com)
submitted 10 months ago by silence7@slrpnk.net to c/climate@slrpnk.net
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[–] silence7@slrpnk.net 1 points 10 months ago

Nobody is using equipment which lasts for centuries. This means we can get the world economy off fossil fuels on a timescale of decades, not centuries.

The super-fast version of that looks like:

  • generate electricity without burning stuff
  • electrify everything we can
  • stop doing the things we can't

The IPCC has a detailed chart showing the short-term parts of that