Over population is definitely part of the problem, it's the big elephant in the room which - because it is such a sensitive issue - is almost impossible to address on a global scale. And the same goes for the new burdens that we have created on our energy production, namely those unnecessary things like cryptocurrency that are putting a huge strain on our ability to create enough energy without harming the environment.
I must admit I do worry about increasing our reliance on nuclear power though. Nuclear energy has been through a re-branding recently as a 'low carbon' part of the energy mix. I'm with EDF and I often get letters from them listing nuclear along with solar and wind as if it's comparable to them in terms of being environmentally friendly because it's supposedly low carbon. But what about the mining and transportation of the uranium which requires a lot of energy (usually oil-based). And of course the decommissioning of nuclear plants is incredibly expensive, as is the building of them in the first place of course. And I worry about what we're doing with all this waste nuclear fuel, and the cost of storing that safely (which requires energy) or dealing with it by expensively re-processing it.
Nuclear energy seems to me to be far from ideal as an energy source and I don't believe that any advances in technology will improve on that. It's too complex and too expensive. There is a saying that the simplest solutions are almost always the best, and I think that applies especially to energy production.
Politically, nuclear makes a lot of sense, it provides employment for many excellent scientists, and (conveniently) it maintains support and expertise for the military use of nuclear submarines, and (best of all!) it's paid for by the French who have invested heavily in nuclear for years.
Personally, I think that the billions that is spent on nuclear would be much better spent on creating simpler renewable solutions, and investing in the many different forms of storage technology that already exist (but NOT batteries!).
That's what I think anyway. I know it's not quite as simple as that because relying on renewables is not without its challenges but surely it's a better option in the long term!