Your nuclear solution is one longer term solution,the waste disposal issues and decommissioning costs are a problem.
Any energy generation system be it green or any other costs money so why not pick a cheaper and cleaner option?.
Other energy sources may be more reliable in the long term,have we got time to set them up?, not much if some forecasts are right..
What we don't seem able to solve is the stupidity of mankind,between us we can solve the energy crisis,nobody seems to have the solution
to the blindness of humanity.