So Southern Californians didn’t decrease their water usage in July, despite Gov. Gavin Newsom’s request for a voluntary 15% cutback?

Well, of course not. The dusty lake beds, the dry spigots, the serious water-use cutback orders and the most frightening wildfires (so far, anyway) have been in Northern California, and that’s where Newsom focused his most dire warnings. He declared a drought emergency in Mendocino and Sonoma counties in April, expanded it to 41 counties in May, and then to 50 counties in July — but not Los Angeles, Orange, Ventura, San Diego, Riverside or San Bernardino counties. The Metropolitan Water District of Southern California warned of unprecedented shortages in Lake Mead and has launched an advertising campaign calling for increased conservation. But the MWD is the victim of its own success, in that it has done a superb job over the decades supplying enough water so that residents generally don’t think about shortages.