It is actually not that hard to make something water-tight if you have no intention of opening it again. > I dont think nuclear power is a solution. It can be

It is actually not that hard to make something water-tight if you have no intention of opening it again. > I dont think nuclear power is a solution. It can be step in an energy transition strategy, but no solution. Do you mean nuclear fission specifically? Because I can't imagine anything being a long term solution except nuclear power (fusion).