This is one proposed experimental solution in category "deep geological repository". https://en.wikipedia.org/wiki/Onkalo_spent_nuclear_fuel_repository https://

This is one proposed experimental solution in category "deep geological repository". https://en.wikipedia.org/wiki/Onkalo_spent_nuclear_fuel_repository https://en.wikipedia.org/wiki/Onkalo_spent_nuclear_fuel_repo... Related nice documentary where they cover the questions: https://en.wikipedia.org/wiki/Into_Eternity_(film) https://en.wikipedia.org/wiki/Into_Eternity_(film)