this post was submitted on 14 Oct 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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The ‘world’s largest’ vacuum to suck climate pollution out of the air just opened. Here’s how it works (edition.cnn.com)
submitted 1 month ago by [email protected] to c/[email protected]
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[–] [email protected] 4 points 1 month ago* (last edited 1 month ago)

This implies 3 main problems:

  1. They're using the captured carbon for extracting more oil, which is self-defeating. That's not surprising considering who's been behind this kind of technology.
  2. It means allocating geothermal energy to something else. Is there a dislocation of energy supply here? Are other energy users in Iceland using fossil fuels because they can't access geothermal due to the Climeworks?
  3. Places with geothermal are rare, thus it's an exceptional example, not one that can be repeated easily. Having that device be powered by fossil fuels would be, again, self-defeating.