[Aerroon]

Here's a practical solution: put it in the second parking lot. The nuclear waste that a nuclear plant generates over its lifetime likely won't even fill up that same plant's parking lot. And some of that waste could also be reused at a later time.

Something else to consider is that the stuff with the highest radioactivity is usually the shortest. At this stage having a robust forever-lasting solution for nuclear waste is not a larger priority.

There are places in the world where you can just find uranium rocks lying on the ground.