this post was submitted on 05 Aug 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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The U.S. Government Will Pay to Remove Carbon From Atmosphere (heatmap.news)
submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]
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I'll note that this is a tiny and incredibly expensive part of what needs to happen

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[โ€“] [email protected] 2 points 1 year ago (1 children)

Would that be done through mineralizing the carbon that's dissolved in the water? I remember hearing about some mineral you could spread in the water that would react with the carbon. I wonder what it would take to produce and spread that at scale with a low re-emission rate.

[โ€“] [email protected] 1 points 1 year ago

There is discussion around enhanced rock weathering, but none of it is a proved technology at this point, even at pilot scale, in the way that direct air capture is.