Where did the idea of “water security” come from? How did countries around the world come to agree on shared goals for drinking water, sanitation, river basin management and sustainable development? And why does water still lack the kind of global institutional architecture that exists for climate change and biodiversity? In this episode, Dr Roberto Lenton, one of the world’s leading voices on water security and international development joins host Veena Srinivasan for a conversation on the e...