Any source at all?

(Good luck finding one that supports your position).

FWIW: yes, mining is bad. But uranium is unbelievably energy-dense and the amounts are ridiculously small compared to any other source of energy. All things considered, nuclear causes fewer emissions per MWh than most solar panels (which are not radioactive but still need heaps of metals and semiconductors). Also, there is no contest with coal, oil, and gas, which is the thing that is actually used when you don’t have nuclear energy available.