this post was submitted on 31 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:

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[–] Forester@yiffit.net 8 points 5 months ago* (last edited 5 months ago) (21 children)
12.95 ¢/kWh to	13.60 ¢/kWh.

I think that's a fair price for cleaner air

I also think there are proven better reactor designs that are far cheaper.

https://www.eia.gov/electricity/monthly/epm_table_grapher.php?t=table_5_06_a

[–] silence7@slrpnk.net 13 points 5 months ago (20 children)

Sadly not. There are unproven ones which might be, but the US nuclear industry has a substantial history of coming in really really expensive.

The reason electricity in most places is cheaper are:

  • Nuclear was built a long time ago, so the reactors are paid for already
  • Electricity is generated using methods other than nuclear
[–] admiralteal@kbin.social 1 points 5 months ago* (last edited 5 months ago)

It's also for reasons with nothing to do with nuclear in particular. The US is just terrible at executing large civil projects. It costs more to build at large scales here than virtually anywhere else, for a confluence of reasons -- highly decentralized project management (state, county, federal, city governments all fighting for authority), lack of sustainable learning curves, NEPA being weaponized by NIMBYs to kill every project including environmentalist ones, plain dumb politics... you know you have a problem when you look onto the efficiency of Italian bureaucracy with envy, but meanwhile they can build e.g., rail projects at something like a third to sixth the budget the US can.

A big part of the problem is that we insist on fully custom and experimental projects. Every fucking time. We never just use the catalog builds. We never set and stick to a standard. Not even in road design, where the AASHTO green book is treated like a fucking Holy Bible -- we follow its (largely dumb and dangerous requirements while still bespoking every fucking project.

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