I very much hope it can be done, and will be done. I've been paying close attention for several years now, and the scope of the environmental destruction is so extreme that it's impossible  to summarize it in any meaningful way. There are over 440 nuclear power plants, and all but about 3 are in the northern hemisphere.   A lot of them are old and a number are leaking, like Hanford.  I have to ask, Hydro, why is no one doing these things? Or are they? Is this dependent on technology that requires more work and that is actually unavailable right now?  Or is this method available now?

I know humans are intelligent, and capable of some rather spectacular technology, but I'm not sure that means we can fix what we have done to the natural world.   I believe if we were to stop it all right now, we have already triggered so many self-reinforcing feedback loops that we could very well heat the planet another 4C or more within a decade or two.   If so, oops.