this post was submitted on 14 Oct 2024
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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 ‘world’s largest’ vacuum to suck climate pollution out of the air just opened. Here’s how it works (edition.cnn.com)
submitted 4 weeks ago by GreeNRG@slrpnk.net to c/climate@slrpnk.net
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[–] rbesfe@lemmy.ca 12 points 4 weeks ago (3 children)

Here's how it works: it doesn't

[–] tee9000@lemmy.world 3 points 4 weeks ago (2 children)

Hey whats your background in this field?

Are you also saying it will never work no matter how many iterative improvements are made for the design, and no matter how cheap production becomes after refining the manufacturing process?

[–] rbesfe@lemmy.ca 1 points 4 weeks ago* (last edited 4 weeks ago) (1 children)

I have a bachelors in chemical engineering, the energy balance on these devices never works out favourably. As soon as you scale up to any meaningful impact on GHGs, you get power inputs on the scale of entire countries.

If you'd like to do a proper literature review instead of daydreaming, I'd be happy to look it over

[–] tee9000@lemmy.world 1 points 4 weeks ago

Like power output of switzerland or china?

If it were powered by nuclear energy, for example, then would they would have utility? Or you are saying money is better spent elsewhere full stop?