this post was submitted on 14 Sep 2023
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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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US Department of Energy analysis says coal carbon capture project would emit more greenhouse gases than it stores (energyandpolicy.org)
submitted 1 year ago by silence7 to c/climate
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[โ€“] admiralteal@kbin.social 8 points 1 year ago (1 children)

Direct air capture is way more practical than any kind of regular carbon capture. And direct air capture is never going to be a major part of de-carbonizing, even if it will be essential for total success.

There has literally never been a commercially-successful carbon capture implementation. Well over a billion sunk into this technology with no useful results. Just total bamboozles like Petra Nova.

We have to leave fossil fuels in the ground, first and foremost. As many of them as possible, as soon as possible. We can save all this technowizard nonsense for when we're trying to get rid of the final tons. We won't need to be pissing money at "clean coal" or any such nonsense once the coal plants are all shut down. Bonus points, even the free market wants to shut them down because they're not economical.

[โ€“] HubertManne@kbin.social 1 points 1 year ago

Im not really confident on the coal part either. Its not so economical in the US but every so often you see articles in other places about doing more. And not just china and india but like australia.