this post was submitted on 09 Aug 2024
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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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Biomass power station produced four times emissions of UK coal plant, says report (www.theguardian.com)
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[–] DarkThoughts@fedia.io 1 points 3 months ago (2 children)

I think there's some new initiatives for deeper drilling to make geothermal feasible in most areas now. Would be great because geothermal is probably the best energy source available to us.

[–] nikaaa@lemmy.world 1 points 3 months ago (1 children)

AFAIK geothermal is not renewable, in other words, all of the underground heat is just stored there from the formation of earth, but once consumed, it doesn't regenerate.

That's why i'm not a big fan of geothermal.

[–] DarkThoughts@fedia.io 0 points 3 months ago (1 children)

That's like saying the Earth's core or the sun / solar is not renewable.

[–] nikaaa@lemmy.world 1 points 3 months ago (1 children)

Earth's core's heat is renewable, but only in geological timescales. Not in the next 1000 years. Same as oil. That's why we don't count it as renewable: It's not renewable on a human timescale.

[–] DarkThoughts@fedia.io 1 points 3 months ago

It's also not going to run out anytime soon.

[–] YourPrivatHater@ani.social 1 points 3 months ago (1 children)

I would argue wind and solar are, geothermal from deep drilling carries risks

[–] DarkThoughts@fedia.io 1 points 3 months ago (1 children)

The risks are pretty minimal, especially after the drilling & building is done. And in exchange you get basically unlimited free base load safe energy. Wind and solar still have issues with the materials used and their recycling, but I suppose that's more of a problem for "other people".

[–] YourPrivatHater@ani.social 2 points 3 months ago

The problems of solar aren't that big and Geothermal has Seismic problems from what i last heard

Also baseload is a outdated concept according to modern experts