this post was submitted on 06 Jul 2025
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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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[–] federalreverse@feddit.org 7 points 2 days ago* (last edited 2 days ago) (1 children)

the most expensive renewable

Ftr, Uranium is not renewable.

I don’t buy the “unsafe” argument

The thing is that the well-known nuclear catastrophes, at a minimum all resulted in fairly large areas right in the middle of civilized land being lost to humanity for the foreseeable future. So, even if overall death rate is only somewhat higher than for e.g. wind energy — wind energy does not lead to such devastating local effects. The other thing is, nuclear needs skilled teams to manage plants at all times, even when they're shut off. As soon as your country goes off its routine because military coup!, nuclear plants become a massive danger. Also, nuclear plants can make for devastating attack targets during a war (obviously the attacker would need to value mayhem and defeat above colonizability).

And finally, nuclear danger is (within human time frames:) eternal because you need to store some materials safely for a very long time; "nuclear semiotics" is an actual thing studied by scientists somehow — yet I've never heard of "oil semiotics" or "solar semiotics".

[–] HaraldvonBlauzahn@feddit.org 2 points 1 day ago

Ftr, Uranium is not renewable

And Russian Uranium even less so ... which is what much if Europe uses.