this post was submitted on 09 Aug 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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[–] [email protected] 1 points 1 month ago (1 children)

Hydro is water. And geothermal is something i forgot, its however not really possible to use in most areas from what i know.

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

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

[–] [email protected] 0 points 1 month ago

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

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

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

[–] [email protected] 1 points 1 month 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".

[–] [email protected] 2 points 1 month 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