New York Times: You dont know youre in a megadrought until youre many years, if not decades, into one. So conditions in California could still turn around (which could lead to a shock to trance effect on water conservation efforts). But lots of signs are pointing to the current extraordinary dry spell, likely exacerbated by heat from human-driven climate change, taking California into conditions unexperienced since long before the states water-dependent economy exploded during Gov. Jerry Browns fathers...