Fearsome gusts of desert wind routinely kicked up swirling clouds of choking dust over Owens Lake on the east side of the Sierra Nevada after 1913, when its treasured snowmelt and spring water was first diverted into the Los Angeles Aqueduct. It was not until 2001, and under a court order, that the Los Angeles Department of Water and Power began transforming the lake’s grim heritage, flooding portions where toxic, powder-fine dust exceeded federal pollution standards. In what is now hailed as an astonishing environmental success, nature quickly responded.