The document discusses water use and management in California. It states that water use is divided into urban (10%), agricultural (40%), and environmental (50%) sectors. The urban sector alone uses over 3 trillion gallons per year, while agriculture uses around 12 trillion gallons annually for irrigation. The main problem outlined is that California does not make wise or efficient use of its limited water supply, given the state's dry conditions and ongoing drought. Solutions proposed include using more efficient irrigation systems, reducing water-intensive crops and livestock, and providing incentives for conservation.