this post was submitted on 09 Nov 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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To be clear: carbon capture like this is a tiny and expensive part of what needs doing over the next few years

It's getting a lot of support and publicity in large part because it's backed by the oil industry, which is trying to create social permission for continued extraction and burning on a much larger scale than the removal.

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[–] DoomBot5@lemmy.world 3 points 1 year ago (1 children)

What if excess solar was used for it instead?

[–] Eheran@lemmy.world 2 points 1 year ago (1 children)

What if we used that energy in a more efficient way to directly prevent CO2 emissions? That will result in x times more CO2 saved with the same resources.

Not sure how efficient CCS tech currently is, but it will be far from efficient.

[–] DoomBot5@lemmy.world 1 points 1 year ago (1 children)

Oh we're playing the what if game? What if this technology becomes super efficient and is better than your imaginary technology? Check mate.

[–] Eheran@lemmy.world 1 points 1 year ago

It is like optimizing recuperation in a car. You are still driving around in a car, the basic issue is still there. There a far better solutions. That is not a "what if" question.