In California, the drought dominated many months of headlines. For a look-back at 2015 and the year of drought, we spoke to Jay Famiglietti, senior water scientist with NASA's Jet Propulsion Laboratory, and SCPR's science and environment editor Stephen Gregory.

RAYMOND, CA - APRIL 23: Cattle walk on dried grass on April 23, 2015 in Raymond, California. As California enters its fourth year of severe drought, farmers in the Central Valley are struggling to keep their crops watered and many have opted to leave acres of the fields fallow. (Photo by Justin Sullivan/Getty Images)
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