this post was submitted on 28 Mar 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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Global warming doesn’t mean everywhere is warming at the same rate, here’s why. (science.feedback.org)
submitted 1 week ago by ice@slrpnk.net to c/climate@slrpnk.net
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Main Takeaways:

  • What global warming does mean: global warming occurs when the average global temperature increases over long time periods of decades or more.
  • What global warming does not mean: global warming is not a ‘uniform’ warming across every region on Earth – instead, for a given time period of overall warming, some places will be colder or warmer than the global average.
  • The role of carbon dioxide (CO2) in global warming: Scientific evidence clearly shows that rising CO2 levels in Earth’s atmosphere have been the driving force behind recent global warming, trapping excess heat through the greenhouse effect.
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