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Delta Subsidence and Levee Safety

The Sacramento-San Joaquin Delta is a critical freshwater resource for California and its reliability depends significantly upon the integrity of the earthen levees protecting dozens of Delta islands.

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Securing an Adequate Water Supply

Continued global warming will increase pressure on California’s water resources, which are already over-stretched by the demands of a growing economy and population. Decreasing snowmelt and spring stream flows coupled with increasing demand for water resulting from both a growing population and hotter climate could lead to increasing water shortages. By the end of the century, if temperatures rise to the medium warming range and precipitation decreases, late spring stream flow could decline by up to 30 percent. Agricultural areas could be hard hit, with California farmers losing as much as 25 percent of the water supply they need.

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