The delta smelt is on a trajectory towards extinction in the wild. Heading into 2017, the spawning adult population was at an all-time low although this past wet winter has apparently seen a small resurgence. However, increasingly warm summer temperatures in the Delta may dampen any upswing. Given the long-term trajectory of the population and climate predictions for California, maintaining Delta smelt in the Delta for the next 20-30 years is not likely to happen without significant improvements to the habitat.