This immersive and accurate book tells the story of California's most valuable resource, tracing the state's water journey from the atmosphere, to the snow cover, to our taps and food. On the way we learn a lot about California itself, while the book describes its rivers, lakes, wetlands, dams and aqueducts and discusses the role of water in agriculture, environment and politics. This fascinating book shows that every drop counts for every Californian. New in this updated edition: It contains additional maps, pictures and photos. It provides extended coverage of possible impacts of climate change on rainfall, snow cover and water supply. It contains updated information about the fight for water management and possible solutions. It contains new content on sustainable groundwater use and regulation, desalination, water recycling, rainwater treatment and current water storage and diversification proposals. and provides an additional table summarizing water sources for 360 Californian cities.