this post was submitted on 09 Nov 2023
93 points (98.9% liked)

Climate - truthful information about climate, related activism and politics.

5053 readers
383 users here now

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.

founded 1 year ago
MODERATORS
 

NuScale and its primary partner give up on its first installation.

you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 39 points 10 months ago (2 children)

Tldr: renewables are really cheap and utility partners backed out from buying the energy so it didn't make economic sense.

I can't help but feel that it would make more economic sense if we taxed the fuck out of other stable sources of energy that are killing us (coal/gas).

But it's Utah: they don't give a single shit about air quality or global warming.

[–] [email protected] 13 points 10 months ago* (last edited 10 months ago) (2 children)

Also according to the guardian the project had massive cost overruns increasing the costs by a factor of five:

The projected cost of the NuScale project had blown out from US$3.6bn for 720 megawatts in 2020 to US$9.3bn for 462MW last year.

https://www.theguardian.com/australia-news/2023/nov/09/small-modular-nuclear-reactor-that-was-hailed-by-coalition-as-future-cancelled-due-to-rising-costs

To answer your idea solar costs on a MW bases 30times less today, with falling prices. Solar runs something like 20-25% of the time and you need storage, but that is still much much cheaper then this nuclear plant would be. So you are really wasting money going for nuclear today.

[–] [email protected] 4 points 10 months ago (1 children)

Exactly. Nuclear is quite expensive compared with wind, solar, and short-term storage. The only place new nuclear might make sense is as a competitor for longer-duration storage, and then only if it's able to come in more cheaply than people know how to build it.

[–] [email protected] 7 points 10 months ago

Nowadays a big problem with nuclear is that as almost no new reactors are built the expertise to build them has disappeared so it always leads to these huge cost overruns.

[–] [email protected] 1 points 10 months ago

@MrMakabar @huginn @climate

Small modular nuclear reactor?

Not in my back yard, thanks. Not that these industries tend to ask.

[–] [email protected] 3 points 10 months ago (1 children)

@huginn @otter @climate

There are locations where, judging by the general populations ignorant attitudes, they don't have enough sense to give a shit about air quality or global warming.

However, in western "educated" society, those general attitudes have been formed due to corruption.

For example, where l live the general public are simply not exposed to the facts about air pollution & climate change. Many live in their own social bubbles & are exposed to industry propaganda

[–] [email protected] 3 points 10 months ago

What's funny is I tend to believe the average Utahn cares about air quality. They have some insanely toxic air when inversions set up in the valley.

But they keep electing politicians that run heavy industry (copper mining, steel smelting, oil and gas refining) in that selfsame valley with 0 oversight.