As nuclear waste piles up, scientists seek the best long-term storage solutions(cen.acs.org)
cen.acs.org
As nuclear waste piles up, scientists seek the best long-term storage solutions
https://cen.acs.org/environment/pollution/nuclear-waste-pilesscientists-seek-best/98/i12
If you are storing plutonium on the other hand (as exists in spent fuel rods) the half-life is 24,000 years and the problem is much worse. On the other hand, plutonium is a good fuel and can be consumed instead of thrown out.