Disspelling the Myth of an Endless Water Supply

Federal weather forecasters are predicting that overall, California will have at least average precipitation this winter. Given the severe drought we're having, average sounds pretty darn good. Despite that prediction, some scientists believe that California's recent dry spell is actually the beginning of an epic drought that could last decades. That of course would change how we live. And yet, our cities are, to a great extent, built on the idea that fresh water is endless. KQED Science reporter Amy Standen wanted to find out where this idea came from ... and what it would mean to change it.