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The momentum of the solar energy transition
(www.nature.com)
Due to technological trajectories set in motion by past policy, a global irreversible solar tipping point may have passed where solar energy gradually comes to dominate global electricity markets, without any further climate policies
Regarding scarce uranium, if more money was poured into perfecting a thorium based molten salt design, we would have enough readily available fuel to power the world for over a thousand years, as Thorium deposits are quite common.
However I'm not hopeful that Nuclear will become a significant power source in any reasonable timeframe, at least in america, due to the massive amount of red tape making building them slow and costly. Though I hope I'm wrong about that.