this post was submitted on 25 Sep 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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China leads nations with new climate plans, defying U.S. climate denial (www.nbcnews.com)
submitted 15 hours ago by ZeroCool@lemmy.ca to c/climate@slrpnk.net
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[–] xxce2AAb@feddit.dk 11 points 14 hours ago (2 children)

Heh. I'm reminded of the story of what happened when Donald Sadoway was pitching liquid metal batteries to the US Army. He was asked what would happen if a sniper were to put a .50 BMG into one of them. His response? "Well, it'll leak a little inert non-toxic metal and then self-seal whereupon it'll just keep working".

...We still don't use those for reasons I cannot fathom, despite them being literally cheap as dirt and perfect for grid-level storage.

Every time somebody talk about renewables, some twat also goes "but what about storage?" and has me screaming "WE'VE HAD THE PERFECT SOLUTION SINCE 2009, GOD DAMN IT!".

[–] Auli@lemmy.ca 2 points 2 hours ago (1 children)

Because they are not feasible. I don't know how many battery stories I have heard over the years and none of them have ever been mass produced. Discovering something in a lab is not the same as mass producing stuff.

[–] xxce2AAb@feddit.dk 2 points 2 hours ago

Maybe you should look into the operating principles before you declare them 'infeasible'. They're a vessel filled with antimony, magnesium and a liquid salt electrolyte that self-separates according to specific gravity. Since both the anode and cathode are made of liquid metal, there's no structural degradation over time. They can be trivially scaled to just about any size you like and are made exclusively from Earth-abundant cheap elements. Just about the only tricky thing is that the operating temperature of a working cell is 600C, but that's hardly an issue for a grid-level storage facility.

[–] MrMakabar@slrpnk.net 5 points 13 hours ago

It is actually even more insane then that. We know how to built electricity grids. The US is a large country, so it is pretty much a given, that it is windy somewhere in the US. Somewhat similar story with solar as well, but of cause nights cause a bit of a problem. The storage needed to run a well connected grid is fairly low. More so the US has a lot of hydro. The water reservoir can be used as a form of power storage, by changing how much water is let out. Obviously there are limits to that, but the potential is massive.