This may be a "hot" one, considering lots of people do not like anything nuclear. If you would want to know my "bias", well I have always been "pro nuclear". So if you want to take this claim with huge mountains of salts, feel free to do so.
Here is a relevant wiki article for radiation hormesis. This is a proposed effect that certain amounts of radiation exposure may even be beneficial instead of harmful as LNT may suggest.
TL;DW for folks who do not want to watch video (I have not included examples or numbers)
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Radiation from natural sources (like radioactive bananas you eat, or from soil or space) are always present.
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Most nuclear safety guidelines consider that there are no "safe limits" of exposure to radiation. For example, there are safe limits of some metals in our body, there is no limit for mercury or lead exposure. There is a required amount of vitamins you need, but there is also a limit beyond which they are not safe. Radiation is treated like mercury in guidelines.
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If it has no safe limits, then due to natural exposure, places with higher background exposure must have naturally higher rates of cancers developing - but the thing is, experiments and data collected does not match.
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Your body has natural means to repair damage done by radiation, and below a certain limit, your body can withstand (and arguably benefit, see the linked article) the radiation.
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Over estimating danger due to radiation leads to large scale paranoia, and leads to general public be scared of nuclear disasters, when they are not as bad ast they may seem.
And pre-emptively answering some questions I am expecting to get
- Do you support nuclear bombs? Hell no. We should stop making all kinds of bombs, not just nuclear.
Are there not better means of renewable energy generation like
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solar? - no, you still need rare erath metals, you need good quality silicon, and you need a lot of area. Until we have a big "stability" bump in perovskite solar cells, it is not the best way. is it better than fossil fuel? everything is better than fossil fuel for practical purposes.
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wind? geothermal? - actually pretty good. but limited to certain geographies. if you can make them, they are often the best options.
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hydro? - dams? not so much. There are places where they kinda make sense, for example really high mountains with barely any wildlife or people. otherwise, they disturb the ecosystem a lot, and also not very resistant to things like earthquakes or flooding, and in those situations, they worsen the sitaution.
It is about safety limits in the sense that we should not be changing them to solve a PR issue. The accepted principle is ALARA. Governments do allow radiation generating devices and infrastructure usually in that framework. The PR issue is not a result of this safety framework, really it's more of an education problem. Most people will never understand radiation or statistics well enough to have a good grasp on this. But I think it is getting better. Most people I talk to take issue with the cost of nuclear more than the radiation, especially here in Aus where we have no existing industry. My understanding is even the French are struggling to keep it economically viable, especially when it's dry.
Energy density should have little to do with cost. We have a lot of empty space, and we really don't need to capture all that much sunlight even with 20% efficiency. 20% is just fine when photons from the sun are free. The true cost savings with solar is not in the panel cost, it's that a dozen people with a TAFE degree can build a 500 MW generator in a paddock in 3 months, that operates with minimal maintenance. Nothing can beat this.
Economically viable superconducting links are indeed a long way off but I would bet we see them before commercial fusion. In fact, we already have, they exist in a number of grids, mostly as tests and demonstrations. In east coast Aus, we lose close to 50% of our generated power to transmission lines. You take away transmission loss, and you can build a global grid. Aus can power the EU and NA in their nights with solar. It's never cloudy everywhere at the same time.