Winter just hasn't measured up in precipitation so far, raising drought concerns in both states.
California, which grows so much of the country's food, continues to look for new strategies to hedge against drought. Among them: groundwater recharge, putting surface water into underground aquifers when there's a storm or other surface-water surplus.
The science is developing, but the legal framework lags a bit. We discuss groundwater recharge with Helen Dahlke at University of California-Davis and Peter Nico at Lawrence Berkeley National Laboratory.
And there's particular interest in water use in the almond industry.
Gabriele Ludwig from the Almond Board of California joins the discussion.