this post was submitted on 24 Nov 2023
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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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Pierre Friedlingstein: There are no “magical climate solutions” | Nothing matters more than ending fossil fuel consumption, says one of the world's leading climate scientists. (www.newstatesman.com)
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Bar chart of 2022 CO2 emissions. Land use: 3.9 gigatonnes. Fossil fuels 37.5 gigatonnes

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[–] [email protected] 2 points 1 year ago

We have rough breakdowns of greenhouse gas emissions, like this, for 2015

What we need to do:

  • Generate electricity without burning stuff
  • Electrify everything we can
  • stop doing the things we can't

The IPCC has a bunch more detail on what parts need doing immediately

How much is being done and in which sectors varies greatly by country.