This lecture will explain in clear and accessible terms how such a system works and how its safety is assessed over extraordinarily long timescales. It will explore the role of geology, the design of protective barriers, and the process of selecting a site where a repository could eventually be built.
A deep geological repository is one of the most ambitious engineering projects of our time, bringing together science, technology, and responsibility towards future generations. But how do we make decisions today about something that must remain safe and effective for a million years?