this post was submitted on 14 Feb 2025
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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.

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Will There Be Enough Power to Remove Carbon From the Sky? | The direct air capture industry has ambitious plans to pull carbon dioxide from the atmosphere, but it’s vying for limited renewable power (messaging-custom-newsletters.nytimes.com)
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[–] Birch 1 points 6 days ago (1 children)

Well it's not meant to be the solution, but part of the net zero mix and to deal with unavoidable and historic emissions, once all other venues have been doing their part, lowering emissions and green energy and renewable and whatnot, to develop the technology to mop up the remaining CO2. But at the current trajectory its akin to arranging deck chairs on the titanic.

[–] [email protected] 1 points 6 days ago

It just pure is worse to do if it produces more carbon than it captures and if we are producing any power that produces carbon it will be the case as long as we are getting any electricity from sources that produce carbon even if its using clean electricity as it would be better for it to offset it and at the least it would be better to just make more batteries or such to capture it and use elsewhere. It literally is useless unless we are not producing any electricity that puts out greenhouse gases and further have excess to use for carbon capture.