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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[–] [email protected] 13 points 3 months ago (1 children)

You know what cost they never factor in? The cost of climate change. If they actually factored in the cost of emissions then nuclear power would be one of the cheapest forms of energy alongside solar.

[–] [email protected] 4 points 3 months ago (2 children)

Another thing a lot of people fail to mention about nuclear power, is the lifespan of a reactor. We have reactors from the 70s still running at full power, it's pretty insane. I'm wondering what the TCO per kWh is for a nuclear reactor compared to other sources of energy.

[–] [email protected] 4 points 3 months ago

A solar farm in Switzerland from 1982 is also still providing power at 80% of original spec. Even today solar companies give 25 year warranty on new panels.

So this is not really an advantage of nuclear. In fact after 50 years a lot of them become a lot less reliable. We recently saw that in France.

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

I don't remember, but nuclear is the highest operating cost of electricity, until the reactor is paid off by rates, in which it becomes very cheap. Natural gas is the cheapest starting and maintaining and is reaching better efficiencies. However, it's killing the environment.

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

Methane (natural gas) is cheap because they don't factor in the cost of climate change caused by methane emissions. Methane would be one of the most expensive if they factored in the leaks and its strong ability to trap heat in the atmosphere.

[–] [email protected] 8 points 3 months ago* (last edited 3 months ago) (1 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

[–] [email protected] 11 points 3 months ago (1 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
[–] [email protected] -4 points 3 months ago* (last edited 3 months ago) (3 children)

The US Navy has had functional Small modular reactor designs mostly PWR designs since the 1960s in the 5mw to 500mw range with no major failures yet.

[–] [email protected] 15 points 3 months ago (1 children)

The problem is that none of these designs have ever been used to power the grid. Every nuclear project in the recent past has blown by cost and time estimates. Wind and solar are not only cheaper than nukes, they can also be installed much quicker and predictably. Nukes have a place, but we need clean energy now.

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

Wind and solar are great, but they cannot provide consistent 24 hours base load production. Even with massive battery farms, they cannot replace bas load consistently.

That's where nuclear needs to be, replacing the base load production currently being handled via coal and natural gas.

[–] [email protected] 3 points 3 months ago* (last edited 3 months ago) (1 children)

The US at least already has enough nuclear to handle base loads when solar and wind are unavailable. Nukes in some contexts are needed, but I believe we have 30% or so nukes in the US. Diverting resources to new nukes is a waste when we could be making carbon fuels unprofitable soon by investing in solar and wind.

[–] [email protected] 1 points 3 months ago

But are they in the right places? There's always loss in power transmission, so you can't use reactors that are in, say, Illinois, to make up for grid deficits in Alabama (or, not directly). And Texas, being a special snowflake, isn't tied into the national grid, so they always need their own systems.

[–] [email protected] 6 points 3 months ago (1 children)

Yes. Operated on a military budget. There's a reason they're not used for civilian use.

[–] [email protected] 5 points 3 months ago (1 children)

That's thanks to the training (started with Rickover) and discipline and no shareholders. Commercial nukes don't measure up, e.g. when it comes to leakages and knowing what to do in case.

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

Now you're just being disingenuous. I am certain that qualified individuals from the private sector and qualified individuals from the military both receive adequate training to operate their facilities

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

What's funny about this is that most of the qualified private sector individuals are former Navy personnel. The civilian nuclear industry loves to hire people with nuclear training from the Navy because they're already trained and experienced.

The Navy does operate a lot of nuclear reactors, and quite safely overall, but they also spend DoD money on building and maintaining them and training personnel for them.

[–] [email protected] 2 points 3 months ago (1 children)

Way to start out with an ad hominem. Cheap too. Since you're 'certain' (and I know very well that's hard to come by for this sacred cow), your #1 reference?

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

If I called you stupid that would have been an ad hominem attack, I'm saying you're misrepresenting facts which would require intelligence. Therefore, disingenuous.

[–] [email protected] 0 points 3 months ago

Poor governor of Georgia, one more in a long, long line.

I learned much of what I know about how facts are misrepresented by reading advertisements by the industry. Like the full-page regional newspaper ad along the lines of "One myth about nuclear power is ... instead the fact is this ... " back in the 1970s. Or my all-time favorite fact, one of the earliest: Safe, clean, 'too cheap to meter', said AEC chairman Lewis Strauss, in 1954.

Maybe it was catching? But the facts, like those countless millions of escaped curies, were invisible. Convenient.

This 14-year-old Fermi story might help: https://www.latimes.com/business/hiltzik/la-fi-hiltzik-detroit-nuclear-20161003-snap-story.html

[–] [email protected] 0 points 3 months ago* (last edited 3 months ago)

Way to start out with an ad hominem. Cheap too. Since you're 'certain' (and I know that's hard to come by for this sacred cow), your #1 reference?

[–] [email protected] 7 points 3 months ago (1 children)

If Republicans want to elect Republicans that force them to pay extra for their preferred (marginal) carbon free power source, fine I guess? The rate increases aren't great for the other 48% of the state though.

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

If you're only looking from a financial perspective, sure. But given the slow construction times, these decisions are an issue for absolutely everyone, given that decarbonization is a worldwide project.

[–] [email protected] 1 points 3 months ago

I just wanted to point out that Georgia has consistently had a budget surplus for quite a while now, mostly because Republicans keep cutting critical gov't services. Seem to me like Republicans could pay for a new plant using all of the excess taxes that they've been saving for a rainy day.