Previous chapters have explored water scarcity – and the environmental and social problems caused by twentieth-century approaches to increasing water supplies (e.g., large dams). This chapter focuses on innovative and traditional non-dam alternatives for creating resilient water supplies. We address questions such as these:

• Are there alternatives to dams and aqueducts for water supply?
• Will desalination solve all our water problems?
• Can we safely reuse our wastewater to get more mileage out of a limited supply?
• Can we “harvest” water in sustainable ways using traditional and modern technologies?