Fission: maybe. It has high energy density. But uranium ore is very thin and needs to be refined a lot. Storage of spent fuel is problematic. Generally, it costs a whole lot. Even if I consider it green, I don’t see it solving the most pressing problems - setting up nuclear energy is slow.
Fusion: yes, when eventually feasible.
Fission: maybe. It has high energy density. But uranium ore is very thin and needs to be refined a lot. Storage of spent fuel is problematic. Generally, it costs a whole lot. Even if I consider it green, I don’t see it solving the most pressing problems - setting up nuclear energy is slow.