If you were thirsting for some good news about the water crisis, the panelists at the Lobero Theater on Sunday had some.

It’s true, they said, that 700 million people around the globe are without access to safe drinking water. Polluted rivers still catch on fire. People still get sick from water-borne diseases such as cholera, and from lead poisoning, as in Flint, Michigan. In California, where aqueducts crisscross the state, every source of water, including rivers, lakes, and underground basins, is over-committed, both legally and physically, the experts said. Even absent the drought, there is not enough water.