this post was submitted on 05 Mar 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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Is nuclear power a fix for climate change? Experts think it's too dangerous (www.salon.com)
submitted 9 months ago by silence7 to c/climate
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[–] QuandaleDingle@lemmy.world 16 points 9 months ago (1 children)

The appeal of solar and wind for me is how they can enable a decentralized grid. Anyone could set up these utilities according to their needs, which builds societal independence. Also means less resources are likely to be needed overall.

[–] NaibofTabr@infosec.pub 14 points 9 months ago (3 children)

If by decentralized you're mainly referring to rooftop solar, it's unfortunately the least cost-effective way to generate electricity. The $/MWh for rooftop solar is even higher than nuclear on average. Wind and solar are more cost-effective in grid-scale installations. A decentralized/individualized grid would actually require more resources.

[–] Obi@sopuli.xyz 7 points 9 months ago

Right but if you're off grid, it's kind of irrelevant what in-grid costs, it's just nice that it's an option at all and that it keeps getting cheaper.

[–] QuandaleDingle@lemmy.world 1 points 9 months ago

Yeah, grid-scale is exactly what I had in mind. I admit, I'm not knowledgeable in utility engineering. Looks like some research is in order. :)

[–] Davidchan@lemmynsfw.com 0 points 9 months ago

Roof top solar is also a terrible idea due to the huge safety issue it raises for utility workers trying to maintain or repair damaged lines. How do you quickly and safely isolate dozens if not hundreds of houses feeding into the same line if they are all feeding power into the grid? It sounds like a corp shill line but if you're going rooftop solar you should go fully off grid due to the potential danger your panels can cause in any down line situation.