Earlier quoted context omitted.
Nuclear power can be fast to build. It would need to be constructed in volume, with immutable designs. Right now, America builds so few nuclear plants that they are essentially all one-off designs. Mass production is key here. Vis-à-vis costs, the government can poof into existence trillions of dollars with no ill effects. Cost is an easily overcome obstacle. If a mandate came down to produce 1000 new nuclear reactor…
Beyond the fact that electricity-generation is once again only part of our emissions issue, there's about ~450 reactors worldwide and the uranium ore reserves give us around ~120 years of operation on current 3rd (/3+) gen reactors (short of having fast neutron reactors basically). Having 1000 in the US (or rather 900 more or 3 times as many globally) would have brought that deadline closer by the inverse ratio, and…
Exploration programs are expensive.