Ars Technica: The California drought may have put water in short supply, but debate about it is in surplus. Water use has come under even greater scrutiny as Californians struggle to deal with the current and future reality. Groundwater overuse during the drought has reached epic proportions, with the land surface in some locations sinking almost two inches per month as a result. In addition to arguing over how to use the little water they have, people are also debating the question of whether humans are partly...