surly the solution is green energy sources and cutback on energy consumption and not nuclear.

Because

1. it takes 10-20 years to build a nuclear powerplant, so it doesnt solve anything today.
2. it cant be run profitable unless the taxpayer pays for the construction and the deconstruction and the disposal of the waste,
3. it needs a huge amount of river water for cooling which is not safe for climate catastrophe, because the rivers dry up at least temporarily, e.g. france