this post was submitted on 24 May 2025
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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)
submitted 2 days ago by silence7@slrpnk.net to c/climate@slrpnk.net
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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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[–] Korhaka@sopuli.xyz 2 points 9 hours ago (1 children)

What prevents the approval of the reactors, is it bad designs or just a case of planning permission delays because people don't want a nuclear reactor built. Surprised to see Trump being in favour as nuclear as he normally seems to favour the oil industry.

[–] silence7@slrpnk.net 1 points 3 hours ago (1 children)
  • they are really expensive
  • have a history of costing far more than promised
  • nuclear executives have a history of dishonesty, so you need to check absolutely every detail
[–] FauxLiving@lemmy.world 2 points 2 hours ago (1 children)

they are really expensive have a history of costing far more than promised

Because every plant is essentially a unique prototype in a field with very few experienced experts. Building nuclear plants makes building future nuclear plants cheaper and increases the pool of nuclear experts in the country.

[–] silence7@slrpnk.net 1 points 1 hour ago

The learning-by-doing cycle happened in other areas, but plateaued with nuclear quite a while back.