The disposal of radioactive waste, mostly from nuclear power stations, is a big item on the agenda of a conference underway in Austria of the International Atomic Energy Agency.
Radioactive spent nuclear fuel requires safe storage for at least tens-of-thousands of years and so far no country has come up with a permanent storage solution.
Central Europe correspondent Kerry Skyring has told Brianna Roberts the conference will also look at whose responsibilty it is to dispose of the highly dangerous material.
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