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.

Recommended actions to cut greenhouse gas emissions in the near future:

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[–] [email protected] 8 points 1 week ago* (last edited 1 week ago)

The capture industry is a scam by the big players to suck up government money that should be spent on prevention of the emissions instead.

[–] [email protected] 5 points 1 week ago (1 children)

When power is finite and your competitors are crypto and AI farms

[–] [email protected] 6 points 1 week ago (1 children)

Carbon capture was always a scam, so the answer is no.

[–] [email protected] 5 points 1 week ago (2 children)

yeah I have never seen anything that could seem to claim greater co2 capture than the co2 spent for the power. It always relies on, whelp if we have unlimited clean power. Which of course if we had the reduction down to zero co2 emissions would be the first big thing. I highly doubt this will ever be worth it unless we can get down to zero emissions due to some super power source.

[–] [email protected] 1 points 1 week ago (1 children)

solar is gonna get us pretty damn close to unlimited clean power for at least part of the day

[–] [email protected] 2 points 1 week ago

It will if the energy from solar can be used to produce all the solar and battery and such that we use in the process. The mining, the smelting, the shipping around, everything. As far as I know we are not very close to that yet but one thing that got me very hopeful was an eletric smelter which I was not sure if it was going to be feasible. I have not heard of thos titanic minining rigs running on electric yet though.

[–] [email protected] 1 points 1 week 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 1 week 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.