this post was submitted on 17 May 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:

Anti-science, inactivism, and unsupported conspiracy theories are not ok here.

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Five Things the “Nuclear Bros” Don’t Want You to Know About Small Modular Reactors (blog.ucsusa.org)
submitted 6 months ago* (last edited 6 months ago) by [email protected] to c/[email protected]
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A realistic understanding of their costs and risks is critical.

What are SMRs?

  1. SMRs are not more economical than large reactors.

  2. SMRs are not generally safer or more secure than large light-water reactors.

  3. SMRs will not reduce the problem of what to do with radioactive waste.

  4. SMRs cannot be counted on to provide reliable and resilient off-the-grid power for facilities, such as data centers, bitcoin mining, hydrogen or petrochemical production.

  5. SMRs do not use fuel more efficiently than large reactors.

[Edit: If people have links that contradict any the above, could you please share in the comment section?]

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[–] [email protected] 39 points 6 months ago* (last edited 6 months ago) (1 children)

There's so many people paranoid about the remote possibility of dirty bombs. Meanwhile, Norfolk Southern is actually spilling tankers full of toxic chemicals that get set on fire by being incredibly negligent.

If terrorists did want to poison an area, there's plenty of insanely toxic and commercially available compounds to choose from. The fixation on nuclear fuel is an indicator of someone who is just repeating a ghost story and doesn't actually know/care what the biggest sources of danger are.

[–] [email protected] 4 points 6 months ago

Though to be fair, using dirty bombs or radioactive material has waaaaay larger "fear" factor than a random chemical that kills just as well.