[shaqbert]

Amount of radioactive waste: A couple of tons every year per power plant is realistic.

Space dumping is a terrible idea. Expensive and risky.

Best storage solution so far found is what we've mostly been doing so far. Just having a sealed of area and store it for 20 or so years in a special low population and high security area that is protected from rain, frost, and temperature swings and have a good containment in case of container leaks. And then repackage in 20 years time for another 20 years. And so on. I.e. "actively managing" nuclear waste until the end of time.

Fun fact: The inner core of earth is not cooling mostly because of naturally occurring nuclear fission... so in a way our very own planet is full of radioactive waste already :)

[Gibbon1]

My observation that tends to annoy people is to point out that the best place to store spent nuclear fuel is inside the original fuel rods. The best place to store those is next to the nuclear reactor. The objection seems to center around reprocessing. Course the longer you wait before reprocessing the less radio isotopes you have to worry about.