this post was submitted on 13 Feb 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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[–] [email protected] 10 points 8 months ago

yeah but it means we can continue to exploit fossil fuels for now in the hopes that some future technology makes it all ok

[–] [email protected] 8 points 8 months ago (1 children)

Untested AND fictional. And thermodynamically impossible

[–] [email protected] 3 points 8 months ago

We can do carbon capture and especially in the last few percent it becomes increasingly harder to avoid emitting carbon. Land use can be extremely difficult. Steel production requires adding some carbon to the steel to change its properties. A number of chemical processes are going to be difficult to not emit. Having some carbon capture might be a good solution for that. Also taking out carbon to make up for earlier emissions might be cheaper then climate adaption.