Lithium hydroxide sales could fund restoration of the Salton Sea using the "perimeter lake" concept or one of the other plans for a partial freshwater lake that doesn't require a large diversion of fresh water from the Colorado. Center would be dry playa with some irrigated vegetation or dry salt crust to prevent dust problems, maybe even golf course(s). Southern end of the lake would have brine habitat mostly for birds and geothermal/lithium plants. Total cost is roughly $10B which Lithium extraction would cover easily.