Democrat-run California didn’t learn much from the recent five-year drought that left many reservoirs close to empty.

Below, the depleted Almaden Reservoir near San Jose, California, in February 2014.

This year’s rainy season has seen the skies open up and dump incredible quantities of the wet stuff, which is always welcome in the drought-prone Golden (brown) State.

California is also a highly populated state — hovering around 39 million persons — in part because its recent governors have been very welcoming to foreigners, with one result being a population that includes 27 percent foreign born, the highest in the US.

In fact, in 2014 Jerry Brown famously invited all of Mexico to move here, remarking to a Mexican audience, “You’re all welcome in California.”

Democrats like Jerry Brown love to imagine themselves as virtuous environmentalists saving the planet, but they have no problem causing preventable population growth in a nation reputed to have excessive resource consumption.

So you might think that Sacramento would get serious about building water storage infrastructure to prepare for the next drought. But not really, as explained by a recent report: