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Re:What Is a Nuclear Microreactor? by Ericson2314 on Wednesday May 12, 2021 @06:29PM (#27135945)
The other replies handle the large issue now, but let me go point by point.

> Why is nuclear the silver bullet that will save us?

Not supposed to be that, as others said.

> The waste will be around for longer than we are. We have no solution other than 'lock it up'.

If we sacrifice a Cubic mile to save the planet that's a god trade. Paul is a lot bigger than Peter here.

> Accidents do — and most like will — happen. How will increasing the volume of reactors not increase this risk?

The Tsunami was far worse than the meltdown; I am afraid people's fear-memory often conflates the two. I'm willing to admit the official stats with Chernobyl might be a coverup, but still, tons of poor people around the globe get sick or die from perhaps-illegal fossil fuel pollution. It's not a worse coverup than environment justice issues in the US.

The annoyance here among pro-nuclear people is that other thing's problems get to slip underneath the radar, but nuclear's don't.

> storage

Consider storage will require tons of lithium. The ecological damage from that mining will also be catastrophic, and the ecosystems might take as long to recover.

I'm not saying we shouldn't do lithium-ion batteries. We have little choice we're going to need more. Same thing with nuclear. Same thing with not decommissioning dams as soon as we like.

The fact is with all routes, avoiding ecological collapse will cause local environmental issues. What irks people is the singling out of nuclear, as if other things didn't have issues too, and other essential systems (like top soil) repair as slowly as some radioactive isotopes degrade.

Re:What Is a Nuclear Microreactor? by goldenkey on Wednesday May 12, 2021 @08:21PM (#27136894)
Re:What Is a Nuclear Microreactor? by lwhi on Wednesday May 12, 2021 @06:49PM (#27136123)
I saw a report that the reactor at Chernobyl is in danger of starting a new nuclear reaction [1]

Fukushima is going to release the waste water into the sea [2]

[1] https://www.newscientist.com/article/2277195-nuclear-reactio...

[2] https://www.bbc.co.uk/news/world-asia-56728068

Re:What Is a Nuclear Microreactor? by Dylan16807 on Wednesday May 12, 2021 @07:01PM (#27136233)
We have designs now that are vastly safer than Chernobyl.

> Fukushima is going to release the waste water into the sea

Why are you even bringing that up? They're going to filter out basically everything, and the released water will be completely safe.

Anyone that complains about the trace amounts of tritium had better be thousands of times more upset at coal power. Even more, they should see intentional radiation release numbers as a motivator to use tons of nuclear in the short to medium term just to get off coal faster. Coal releases so much radioactive material into the air.

Re:What Is a Nuclear Microreactor? by lwhi on Wednesday May 12, 2021 @07:13PM (#27136350)
There's a lot of opposition to this plan, as mentioned in the article.

> Anyone that complains about the trace amounts of tritium had better be thousands of times more upset at coal power.

It's possible to be upset by both.

If there isn't another nuclear accident in my lifetime, I'll be happy to say my concerns were unwarranted.

Re:What Is a Nuclear Microreactor? by Dylan16807 on Wednesday May 12, 2021 @07:20PM (#27136416)
> There's a lot of opposition to this plan, as mentioned in the article.

The opinions of a couple politicians are not reliably based on reality.

The fishing association is not worried about danger, but about sales.

And greenpeace is not going to give an unbiased answer on anything nuclear.

Taken together, that gives me extremely little worry about danger. The fishermen might be right, I guess.

> It's possible to be upset by both.

It is! But if you're not MUCH more upset about coal's radiation release, something has gone wrong.

Re:What Is a Nuclear Microreactor? by lwhi on Wednesday May 12, 2021 @07:27PM (#27136465)
I notice you didn't come back to me on my last point. Maybe that's something we can agree on ;)
Re:What Is a Nuclear Microreactor? by Dylan16807 on Wednesday May 12, 2021 @07:39PM (#27136565)
I strongly expect to see zero major radiation releases from reactors that are generation III or later.

If we keep running very old reactors, I'm less confident. And I have not done sufficient research on "II+"

Re:What Is a Nuclear Microreactor? by Ericson2314 on Wednesday May 12, 2021 @10:18PM (#27137703)
> If there isn't another nuclear accident in my lifetime, I'll be happy to say my concerns were unwarranted.

That might feel to you like a concession, point of compromise, but for us that's still a dangerously too high bar that puts the environment at risk.

Re:What Is a Nuclear Microreactor? by lwhi on Thursday May 13, 2021 @03:53AM (#27139509)
That's the nub of my whole argument. I see nuclear energy via fission, as too a big risk.
Re:What Is a Nuclear Microreactor? by sthnblllII on Thursday May 13, 2021 @12:03AM (#27138262)
We had safer designs than Chernobyl in the 1950s. The soviets cut a lot of corners in that reactor.
Re:What Is a Nuclear Microreactor? by godelski on Wednesday May 12, 2021 @07:09PM (#27136316)
> Fukushima is going to release the waste water into the sea

So a bunch of nuclear scientists did a calculation and the results sound scary. And Korea is using it as a political tool. Japan and Korea are at each other all the time, though this may not be common knowledge to Westerners. But if you need a sniff test for this to pass, remember that you can go swimming in a nuclear reactor and people actually do, as many may have learned from the XKCD What If[0]. So just take that story and add a ton more water and add convection so the distribution becomes far less homogeneous. It should pass your sniff test now.

[0] https://what-if.xkcd.com/29/

Re:What Is a Nuclear Microreactor? by lwhi on Wednesday May 12, 2021 @07:43PM (#27136593)
That's an interesting link, and point; but my understanding it the water is contaminated.
Re:What Is a Nuclear Microreactor? by godelski on Wednesday May 12, 2021 @08:01PM (#27136719)
So is the water in the story for the link. The problem is that contaminated is not a binary function. If the material is sufficiently dispersed in the water radiation levels won't rise much (I say rise because sea water is already naturally radioactive, as most things are. Which one could say that sea water is "contaminated" but that wouldn't be useful). If it isn't sufficiently distributed then the distance between you/a fish/sea creature is going to play a big factor since water is really good at stopping radiation. Basically think about you and your wifi router. If there's a metal wall between you and the router you're not getting a signal. Attenuation is the key concept in both radiation and the wifi router. Though this is obviously the fall back for "if they mess up" which isn't likely.
Re:What Is a Nuclear Microreactor? by lwhi on Thursday May 13, 2021 @03:57AM (#27139544)
'Chuck it in the sea' has been the answer proposed by many industry scientists for a long time now.

Even supposed small changes are being seen to have an effect on ecologies and food chains [1]

[1] https://e360.yale.edu/features/radioactivity_in_the_ocean_di...

Re:What Is a Nuclear Microreactor? by fomine3 on Wednesday May 12, 2021 @08:06PM (#27136756)
"contaminated" shouldn't be binary.
Re:What Is a Nuclear Microreactor? by kelsolaar on Saturday May 15, 2021 @01:51AM (#27162785)