The UC Davis report says neither global warming nor a population boom will hurt California’s water supply. 

"The water supply system, if it’s well managed, should be able to manage for human water supply."

Engineering professor Jay Lund led the study. He says California has a very versatile infrastructure in place for managing water even with major changes in population and climate.

He says the real test is whether the state’s decision makers are up for the challenge. 

"Can the water managers of California come to some consensus on how to manage water in the future under very different population and climate conditions?" 

Researchers used a computer model that evaluates climate-change and population growth scenarios.