On the first Saturday of December in a northeast neighborhood of Fresno, California, Jeff Collins and his neighbors were putting up their Christmas decorations: strings of lights along identical gable roofs, animated reindeer, and inflatable snowmen. But for Collins, the task involved an extra step — laying down tarps to help the inflatables stay upright in his grass-free yard. Collins had had the lawn ripped out in 2015, at the peak of one of the worst recorded droughts in state history.