
(CNN)When it comes to the big questions plaguing the world’s scientists, they don’t get much larger than this.
Where do you safely bury more than 28,000 cubic meters — roughly six Big Ben clock towers — of deadly radioactive waste for the next million years?
This is the “wicked problem” facing Germany as it closes all of its nuclear power plants in the coming years, according to Professor Miranda Schreurs, part of the team searching for a storage site.