According to the UN, the world is entering an era of “water bankruptcy,” a term scientists are using to describe what happens when water use outpaces nature’s ability to recover. In this conversation, we unpack what that actually means, and why many water systems are no longer bouncing back even after rains return. We hear from Kaveh Madani, the author of a new UN report, and the Director of the Institute for Water, Environment and Health at United Nations University.