this post was submitted on 24 May 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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Trump Orders Faster Build-Out of Nuclear Power Plants | Among a flurry of executive actions, Mr. Trump directed the nation’s nuclear safety regulator to speed up approvals for new reactors. (www.nytimes.com)
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It's worth noting that he also fired many of the staff who know how to ensure that they're actually safe, as well as the staff who would approve financing.

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[–] nuko147@lemm.ee 0 points 11 hours ago (1 children)

AI needs large amounts of reliable power (24/7 delivery). Renewables can power AI for now, but for the long run the demand is showing that expanding nuclear power is mandatory.

There is nothing woke and shit for that. The problem is that they play with safety in nuclear power.

[–] GissaMittJobb@lemmy.ml 2 points 10 hours ago (1 children)

Why would you need 24/7 delivery for AI? You can vary the load for training as much as you want, while inference can be throttled to meet energy availability. There's nothing inherent to AI that warrants that type of power profile.

[–] nuko147@lemm.ee 1 points 10 hours ago

You can not stop training that easily, it takes weeks or months of planning. Also idling hardware is bad usage of capital. Companies do not like these. They want to eliminate energy bottlenecks. Its not that AI needs it, its economics.