Even if we already new how to do fusion we couldn't build fusion plants quickly enough to prevent catastrophic warming. Arguably we can't even build fission pla

Even if we already new how to do fusion we couldn't build fusion plants quickly enough to prevent catastrophic warming. Arguably we can't even build fission plants quickly enough for that. The window for fusion has closed, we should've invested forty years ago. Hoping for some breakthrough that allows us to build these fifty times faster than we currently believe we might be able to build them is a very risky maneuver.